174 results on '"Porcellionidae"'
Search Results
2. Descripción de una nueva especie de isópodo terrestre, Porcellio veraensis n. sp. de la provincia de Cáceres (España) (Oniscidea, Porcellionidae).
- Author
-
CIFUENTES, JULIO
- Subjects
- *
SPECIES , *REST , *PENINSULAS - Abstract
In this work, a new species of terrestrial isopod belonging to the family Porcellionidae is described in Cáceres (Spain). The diagnostic features that allow to differenciate between the new species Porcellio veraensis and thes rest of the genus are also discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2020
3. Porcellio selomai sp. n. (Oniscidea, Porcellionidae), un nuevo isópodo terrestre del medio subterráneo superficial (MSS) de la península ibérica.
- Author
-
CIFUENTES, JULIO and BARRANCO, PABLO
- Subjects
- *
TEETH , *ANTENNAS (Electronics) , *MALES , *PENINSULAS - Abstract
A new species of terrestrial isopod of the Porcellionidae family found in the mesovoid shallow substratum (MSS) of the Sierra de María (Almeria, Spain), Porcellio selomai sp n. is described. Due to the structure of exopod I of the male, with the lateral tracheal field, this species belongs to the "atlantic" group, and has some similarities with other species in this group, such as P. baeticensis, P. dilatatus, P. incanus and P. spatulatus. However, the structure of the silks-scales, of the glandular field, the tooth of the third article of the antenna, the seventh male ischiopodite, or the body shape among other characters, allow to differentiate P. selomai sp. n. among the previous species. [ABSTRACT FROM AUTHOR]
- Published
- 2020
4. Variación intraespecífica en el isópodo terrestre Porcellio dilatatus Brandt, 1833 (Crustacea, Isopoda, Porcellionidae).
- Author
-
CIFUENTES, JULIO
- Abstract
The objective of this work is to make a review of the main morphological characters used in the identification of this species, in order to determine the degree of its variability and whether these characters can be used to separate subspecific entities. 759 specimens from 28 sampling points of Porcellio dilatatus Brandt, 1833, were studied: 644 of them were captured in the Sierra Norte's caves of Seville, and the rest were found in thirteen different Spanish provinces. This study allow us to indicate that while the first exopod of the male's pleopod has an inner tip well marked in most of the specimens, that is developed throughout its growth; the exopod of male's second pleopod, and the female's first and second pleopod vary very little in form during their growth. Although the first exopod of the male's pleopod may or may not have a notch, this notch is always present in the exopodites of the male's and female's second pleopod, and it is also very evident in the immature individuals. In males, the development of secondary sexual characteristics begins with the pleopods, continues with the first pereiopods, and finally affects the seventh pereiopod. Both the telson and the uropods present some variations in comparison with the normal type, even in specimens of the same colony, so they should not be used for the discrimination of subspecies not even forms. In the specimens studied, the same type of scale-setae is found regardless of body size, which is not the case with other characters dependant on allometric growth. With the results obtained, we can affirm that both the "petiti" form as indicated by VANDEL (1962), and Porcellio dilatatus bonadonai Vandel, 1951 fall within the range of normal variability of the nominal species, so they have no differential taxonomic entity. [ABSTRACT FROM AUTHOR]
- Published
- 2019
5. Porcellio tinauti n. sp. (Oniscidea, Porcellionidae) un nouvel isopode terrestre de la péninsule ibérique.
- Author
-
CIFUENTES, JULIO
- Abstract
A new species of terrestrial isopod belonging to Porcellionidae family, Porcellio tinauti n. sp., picked up in La Cimbra's Cave, Tocón de Quéntar (Quéntar, province of Granada, Spain), is described. Its diagnostic characteristics are discussed, and also its similarity with the rest of spanish species of the atlantic group. [ABSTRACT FROM AUTHOR]
- Published
- 2019
6. Isópodos terrestres (Crustacea, Isopoda, Oniscidea) de las cavidades del Parque Natural de la Sierra Norte de Sevilla (España).
- Author
-
CIFUENTES, JULIO and TINAUT, ALBERTO
- Abstract
A check-list of the terrestrial isopods found in the caves of the Natural Park of the Sierra Norte de Sevilla, during the years 2002-2004 is presented. A total of 673 specimens belonging to five species of terrestrial isopods have been identified: Haplophthalmus danicus, Lucasius pallidus, Porcellio incanus, Porcellio dilatatus and Eluma caelatum. Only P. dilatatus can be considered as a troglophile. P. incanus presents a less marked troglophile character, because although usually inhabits caves in the South of the Iberian Peninsula, in other distribution areas behaves like epigean. The other three species are trogloxene. H. danicus is cited for the first time from the province of Seville and Andalusia, and L. pallidus from the province of Seville. The check-list of terrestrial isopods in the province of Seville includes 17 species. [ABSTRACT FROM AUTHOR]
- Published
- 2019
7. A molecular phylogeny of Porcellionidae (Isopoda, Oniscidea) reveals inconsistencies with present taxonomy.
- Author
-
Dimitriou, Andreas C., Taiti, Stefano, Schmalfuss, Helmut, and Sfenthourakis, Spyros
- Subjects
- *
MOLECULAR phylogeny , *PORCELLIONIDAE , *ISOPODA , *WOOD lice (Crustaceans) , *TAXONOMY , *MAXIMUM likelihood statistics , *MITOCHONDRIAL DNA - Abstract
Porcellionidae is one of the richest families of Oniscidea, globally distributed, but we still lack a comprehensive and robust phylogeny of the taxa that are assigned to it. Employing five genetic markers (two mitochondrial and three nuclear) we inferred phylogenetic relationships among the majority of Porcellionidae genera. Phylogenetic analyses conducted via Maximum Likelihood and Bayesian Inference resulted in similar tree topologies. The mtDNA genes cytochrome oxidase I (COI) and 16s rRNA (16s) were used for clade dating using previously published mutation rates. Our results provide evidence against the monophyly of both Porcellionidae and the largest genus of the family, Porcellio. These results are compared to previous published work based on morphological evidence. The genera Leptotrichus and Brevurus are not grouped with the rest of Porcellionidae whereas Agnaridae are grouped with part of Porcellionidae. Armadillidium and Schizidium (Armadillidiidae) occupy a basal position on the phylogenetic tree. Even though the African genera Tura and Uramba (distributed in East Africa) are grouped together, there is no general geographical pattern in other sub-clades. Additional taxonomic issues that arise in this work, such as the assignment of the recently described genus Levantoniscus, are also discussed. The status of Porcellionidae should be further revised and morphological characters traditionally used in Oniscidea taxonomy should be reconsidered in view of molecular evidence. The origin of the monophyletic clade within Porcellionidae, as indicated in the present work, is dated back to the Oligocene (~32 mya). [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
8. Comparison of terrestrial isopod (Crustacea: Oniscidea) assemblages from two preserved areas (Bouhedma and Chambi) in arid regions.
- Author
-
Khila, M., Zaabar, W., Bouslama, M. F., and Achouri, M. S.
- Subjects
- *
ISOPODA , *PORCELLIONIDAE , *ARMADILLIDAE , *NATIONAL parks & reserves , *ARID regions - Abstract
A total of 1290 specimens belonging to 11 species and four families were captured in two national parks, Bouhedma and Chambi. Among these species, seven belonged to Porcellionidae, and the remaining species represented Agnaridae, Armadillidae and Armadillidiidae families. Five species were common and recorded in both parks. However, Armadillidium tunisiense, Hemilepistus reaumurii and Porcellio djahizi were recorded only in Chambi while Agabiformius lentus, Armadillo officinalis and Porcellio albinus were collected only in Bouhedma. The distribution structure of the collected species was analyzed according to altitude and plant assemblages. Seasonal sampling showed that the highest abundance and species richness were recorded in spring. In both parks, the species richness decreased as the altitude increased. Arid regions sheltered specific species such as H. reaumurii and P. albinus, which were often the dominant component of the arthropod macrodecomposer guild in some habitats. The similarity analysis showed a quantitative and qualitative difference between the two parks. The two parks Bouhedma and Chambi shared five species (Leptotrichus panzerii, Porcellio laevis, P. variabilis, Porcellionides pruinosus, Armadillidium sulcatum) with areas studied in the north of Tunisia, Kroumirie, supralittoral zones and around the wetlands. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
9. An overview of Estonian woodlice (Isopoda, Oniscidea)
- Author
-
Getriin Orgusaar, Kaarel Sammet, Mari Ivask, and Olavi Kurina
- Subjects
Trichoniscidae ,Estonia ,Arthropoda ,Range (biology) ,Fauna ,Oniscidea ,Biological Invasions ,range shifts ,Faunistics & Distribution ,Isopoda ,Oniscidae ,Animalia ,Malacostraca ,Ecology, Evolution, Behavior and Systematics ,Trachelipodidae ,soil arthropods ,biology ,Ecology ,Species Inventories ,biology.organism_classification ,Estonian ,Biota ,language.human_language ,Platyarthridae ,Checklist ,Geography ,QL1-991 ,Ligiidae ,Biogeography ,language ,Porcellionidae ,Armadillidiidae ,Animal Science and Zoology ,Philosciidae ,Neogene ,Zoology ,Soil arthropods - Abstract
An overview of the Estonian terrestrial isopod fauna is given, based on literature data and material collected from 1984 to 2021. The identified material consisted of 10915 specimens belonging to 14 species and collected from 172 localities throughout Estonia. In combination with previous data from the literature data, there are now reliable records of 16 species of woodlice from Estonia. Two species, viz. Platyarthrus hoffmannseggii Brandt, 1833 and Hyloniscus riparius (C. Koch, 1838), are new for the fauna. The latter has probably colonised Estonia recently and range expansions have been reported elsewhere. The data on Philoscia muscorum (Scopoli, 1763) are dubious, and this species is currently excluded from the Estonian list.
- Published
- 2021
10. Sobre algunos caracteres morfológicos en la identificación de las especies del género Porcellio Latreille, 1804: El papel de las sedas-escamas. (Crustacea: Isopoda, Porcellionidae).
- Author
-
CIFUENTES, JULIO
- Abstract
Twenty-two species of Porcellio Latreille, 1804 present in the Iberian Peninsula have been studied and for all of them the corresponding illustrations of scale-setae are provided. The exopodite of the first pleopod male of the nineteen species has also been represented, and a table is provided that shows the main characteristics of the Atlantic group species, that is the one with the highest number of species in the study. The obtained results indicate that there is no correlation between the size and morphology of the scale-setae with the size or sex of the specimen, being very similar in the specimens of the same species, and different in different species. Therefore, scale-setae can be used as a good criterion for identification, especially in the case of female or immature. Finally, the study has allowed to expand the known distribution area of Porcellio novus Arcangeli, 1936. [ABSTRACT FROM AUTHOR]
- Published
- 2018
11. Porcellio narixae sp. n. (Oniscidea, Porcellionidae), un nouvel isopode terrestre de la péninsule ibérique.
- Author
-
CIFUENTES, JULIO
- Abstract
Se describe una nueva especie de isópodo terrestre de la familia Porcellionidae, Porcellio narixae sp. n., encontrada en la cueva de Nerja (Málaga, España). Se facilitan sus datos diagnósticos y se discute su semejanza con el resto de especies españolas del grupo atlántico. [ABSTRACT FROM AUTHOR]
- Published
- 2018
12. Isópodos terrestres (Crustacea, Isopoda) de la cueva de Nerja (Málaga, España).
- Author
-
CIFUENTES, JULIO and TINAUT, ALBERTO
- Abstract
We present a taxonomical study of the species of terrestrial isopods found during several sampling periods conducted in the Nerja Cave (Maro, Malaga), from the years 2000 to 2002. Until now, six species of terrestrial isopods have been identified: Anaphiloscia simoni Racovitza, 1907, Lucasius pallidus (Budde-Lund, 1885), Porcellio incanus Budde-Lund, 1885, Porcellio laevis Latreille, 1804, Porcellio hoffmannseggi Brandt, 1833, Armadillidium vulgare (Latreille, 1804), none of them can be clearly considered troglobiont. [ABSTRACT FROM AUTHOR]
- Published
- 2018
13. Porcellionides pruinosus
- Author
-
L��pez-Orozco, Carlos Mario, Carpio-D��az, Yesenia M., Borja-Arrieta, Ricardo, Navas-S, Gabriel R., Campos-Filho, Ivanklin Soares, Taiti, Stefano, Mateos, Mariana, Olazaran, Alexandra, Caballero, Isabel C., Jotty, Karick, G��mez-Estrada, Harold, and Hurtado, Luis A.
- Subjects
Arthropoda ,Porcellionidae ,Animalia ,Porcellionides ,Biodiversity ,Porcellionides pruinosus ,Malacostraca ,Taxonomy ,Isopoda - Abstract
Porcellionides pruinosus (Brandt, 1833) Fig. 1 Porcellio pruinosus Brandt, 1833: 19. Porcellionides pruinosus ��� Carpio-D��az et al. 2016: 434, figs 1���2. Material examined COLOMBIA ��� Bol��var, Cartagena de Indias, Islas del Rosario, Isla Grande ��� 3 ♂♂, 7 ♀♀; Orika; 10��10���37.2��� N, 75��44���27.59��� W; 8 Sep. 2017; A. Figueroa leg.; CUDC-CRU 249 ��� 2 ♀♀; El Silencio, Playa La Cocotera; 10��10���49.3��� N, 75��44���16.7��� W; 6 Oct. 2017; C.M. L��pez-Orozco, R. Borja-Arrieta and Y.M. Carpio-D��az leg.; CUDC-CRU 250 ��� 1 ♂, 11 ♀♀; El Silencio, Laguna del Silencio; 10��10���33.5��� N, 75��44���26.9��� W; 24 Aug. 2017, same collectors as for preceding; CUDC-CRU 251 ��� 1 ♀; same collection data as for preceding; 10��10���32.9��� N, 75��44���27.3��� W; CUDC-CRU 252 ��� 18 ♂♂, 15 ♀♀, 1 juvenile; same collection data as for preceding; 10��10���35��� N, 75��44���26.4��� W; CUDC-CRU 253 ��� 3 ♀♀; La Punta, Laguna Encantada; 10��10���47.76��� N, 75��43���40.27��� W; 25 Aug. 2017; C.M. L��pez-Orozco, Y.M. Carpio- D��az and R. Borja-Arrieta leg.; CUDC-CRU 254. Previous records San Andr��s (Van Name 1936); Angel��polis, Cafetal La Camelia Antioquia Dept, and near Nevado del Ru��z, Caldas Dept (Richardson 1912); Cartagena de Indias, Bar��, Bol��var Dept (Caribbean region) (Carpio-D��az et al. 2016). Distribution Cosmopolitan species (Schmalfuss 2003). First record for continental islands of the Colombian Caribbean., Published as part of L��pez-Orozco, Carlos Mario, Carpio-D��az, Yesenia M., Borja-Arrieta, Ricardo, Navas-S, Gabriel R., Campos-Filho, Ivanklin Soares, Taiti, Stefano, Mateos, Mariana, Olazaran, Alexandra, Caballero, Isabel C., Jotty, Karick, G��mez-Estrada, Harold & Hurtado, Luis A., 2022, A glimpse into a remarkable unknown diversity of oniscideans along the Caribbean coasts revealed on a tiny island, pp. 1-50 in European Journal of Taxonomy 793 on pages 36-37, DOI: 10.5852/ejt.2022.793.1643, http://zenodo.org/record/6037892, {"references":["Brandt J. F. 1833. Conspectus Monographiae Crustaceorum Oniscodorum Latreillii. Byulleten Moskovskogo Obshchestva Ispytatelei Prirody 6: 171 - 193.","Carpio-Diaz Y. M., Lopez-Orozco C. M., Herrera-Medina Y., Navas G. R. & Bermudez A. 2016. Primer registro de Tylos niveus y nuevo reporte de Porcellionides pruinosus (Oniscidea: Tylidae y Porcellionidae) para Colombia. Revista de la Academia colombiana de Ciencias exactas fisicas y naturales 40 (156): 433 - 437. https: // doi. org / 10.18257 / raccefyn. 343","Van Name W. 1936. The American land and freshwater isopod Crustacea. Bulletin of the American Museum of Natural History 71: 1 - 535.","Richardson H. 1912. Terrestrial isopods of Colombia. Memoires de la Societe des Sciences naturelles Neuchatel 5: 29 - 32.","Schmalfuss H. 2003. World catalog of terrestrial isopods (Isopoda: Oniscidea). Stuttgarter Beitrage zur Naturkunde A 654: 1 - 341."]}
- Published
- 2022
- Full Text
- View/download PDF
14. A glimpse into a remarkable unknown diversity of oniscideans along the Caribbean coasts revealed on a tiny island
- Author
-
LÓPEZ-OROZCO, C.M., CARPIO-DÍAZ, Y.M., BORJA-ARRIETA, NAVAS S., G.R., CAMPOS-FILHO, I.S., TAITI, MATEOS, OLAZARAN, CABALLERO, I.C., JOTTY, GÓMEZ-ESTRADA, HURTADO, and L.A.
- Subjects
Arthropoda ,mangroves ,Tylidae ,Botany ,Biodiversity ,terrestrial isopods ,Caribbean Islands ,Platyarthridae ,Ligiidae ,ddc:590 ,QL1-991 ,QK1-989 ,Porcellionidae ,Animalia ,Agnaridae ,Armadillidae ,Tropical Dry Forest ,Stenoniscidae ,Detonidae ,Malacostraca ,Zoology ,Halophilosciidae ,Ecology, Evolution, Behavior and Systematics ,Taxonomy ,Isopoda - Abstract
In this study, we report the results of a taxonomic survey of terrestrial isopods from Isla Grande, a ca 2 km2 island located in the north of Cartagena de Indias, Colombia. We found a total of 17 species belonging to nine families and 10 genera. Eight of these species have been reported only from the Caribbean region, nine are recorded for the first time in Colombia, and three are new to science and described here: Tylos negroi López-Orozco, Carpio-Díaz & Campos-Filho sp. nov., Stenoniscus nestori López-Orozco, Taiti & Campos-Filho sp. nov. and Armadilloniscus luisi Carpio-Díaz, Taiti & Campos-Filho sp. nov. Our revision also determined that the genus Microphiloscia is a junior synonym of Halophiloscia; and moreover, Halophiloscia trichoniscoides comb. nov. is redescribed. We also provide illustrations for Armadilloniscus caraibicus and Armadilloniscus ninae. Most (16) of the species were found in coastal habitats (i.e., beaches, coastal lagoons and mangroves), whereas the tropical dry forest harbored only two species. Molecular phylogenetic inferences supported the presence of three species of Tylos in Isla Grande (i.e., one new species and a new lineage within each of two known species). Our work on Tylos highlights the importance of combining taxonomic and molecular analyses to support taxonomic decisions and uncover cryptic diversity. Due to the multiple threats to Caribbean coastal habitats, taxonomic and molecular genetic research are urgently needed to understand biodiversity patterns of oniscideans in the Caribbean, which will inform strategies for their protection. Such studies will also contribute to our knowledge of their evolution, ecology, and potential uses, as well as the factors that have shaped the remarkable Caribbean biodiversity.
- Published
- 2022
15. TAXONOMIC STUDY OF THE SPECIES PORCELLIO SCABER (PORCELLIONIDAE : ONICIDEA, ISOPODA, CRUSTACEA) IN BAGHDAD.
- Author
-
Aboud, Talal and Al-Doori, Maysaloon Lafta
- Subjects
PORCELLIO scaber ,ISOPODA ,CRUSTACEA ,PORCELLIONIDAE ,EMBRYOLOGY ,BIOLOGICAL specimens - Abstract
An identification study of species Porcellio scaber (Crustacea, Isopoda, Onicidea, Porcellionidae) which collected from Baghdad Al-Risafa, Iraq from September to November- 2018, using a key of the woodlice of Britain and Ireland by Stephen Hopkin, 2012, the animal was photographed using a mobile camera. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
16. Μελέτη της εξελικτικής ιστορίας των χερσαίων ισοπόδων (Isopoda: Oniscidea) σε διαφορετικά φυλογενετικά επίπεδα
- Author
-
Dimitriou, Andreas Ch., Sfendourakis, Spyros, Sfenthourakis, Spyros, Papadopoulou, Anna, Promponas, Vasilis, Araujo, Paula Beatriz, Santamaria, Carlos, Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών, Τμήμα Βιολογικών Επιστημών, University of Cyprus, Faculty of Pure and Applied Sciences, Department of Biological Sciences, Sfendourakis, Spyros [0000-0003-3213-2502], and Dimitriou, Andreas Ch. [0000-0002-7889-509X]
- Subjects
ONISCIDEA ,PORCELLIONIDAE ,GENETIC MARKERS ,ARMADILLO ,PHYLOGENY ,CRINOCHETA ,TERRESTRIAL ISOPODS ,CLADOCHRONOLOGY - Abstract
Includes bibliographical references. Number of sources in the bibliography: 128. Thesis (Ph. D.) -- University of Cyprus, Faculty of Pure and Applied Sciences, Department of Biological Sciences, 2021. The University of Cyprus Library holds the printed form of the thesis. Τα χερσαία ισόποδα (Oniscidea) παρουσιάζουν ορισμένες ιδιότητες που τα καθιστούν μοναδικά στην παγκόσμια βιοποικιλότητα, προσφέροντας ερευνητικές ευκαιρίες σε πολλά βιολογικά πεδία, όπως η εξέλιξη, η οικολογία, η οικοτοξικολογία, η βιοακουστική και η οικοφυσιολογία. Με περισσότερα από 3700 περιγεγραμμένα είδη, τα Oniscidea είναι η μεγαλύτερη και ταυτόχρονα η μόνη χερσαία υπόταξη ισοπόδων. Η μετάβαση από τη θάλασσα στην ξηρά πιθανότατα έλαβε χώρα κατά τη διάρκεια της Λιθανθρακοφόρου περιόδου, ~300 Μya. Τα χερσαία ισόποδα είναι οι πιο επιτυχημένοι αποικιστές του χερσαίου περιβάλλοντος εντός των Καρκινοειδών, παρουσιάζοντας μια σειρά από ποικίλες μορφολογικές, οικολογικές και συμπεριφορικές προσαρμογές που τους επέτρεψαν να κατακτήσουν τη χέρσο. Είναι αξιοσημείωτο το γεγονός ότι τα αρτίγονα είδη αντιπροσωπεύουν σχεδόν όλα τα εξελικτικά βήματα που τους έδωσαν τη δυνατότητα να καταλάβουν τη μεγάλη πλειονότητα των χερσαίων οικοτόπων, συμπεριλαμβανομένων των πολύ αφιλόξενων περιβαλλόντων της ερήμου, των λιμνοθαλασσών και των υπόγειων γλυκών υδάτων, όπου επέστρεψαν δευτερογενώς. Η παρουσία των χερσαίων ισοπόδων εκτείνεται από το επίπεδο της θάλασσας μέχρι και σε πολύ υψηλά υψόμετρα (>4800 m), εκτός από τις πολικές περιοχές. Παρά τη συνεχή συσσώρευση γενετικών και μορφολογικών δεδομένων, δεν έχουν ακόμα επιλυθεί οι φυλογενετικές σχέσεις μέσα στην ομάδα των Oniscidea ή μεταξύ των υποτάξεων των Ισοπόδων. Στο πλαίσιο αυτής της διατριβής διερευνήθηκε η εξελικτική δυναμική αυτών των ομάδων σε διαφορετικά ταξινομικά επίπεδα. Πιο συγκεκριμένα, εξετάστηκαν οι φυλογενετικές σχέσεις στα ακόλουθα επίπεδα: i) βαθιά φυλογένεση - διερεύνηση σχέσεων μεταξύ των πέντε κύριων κλάδων Oniscidea και στενά συγγενών υδρόβιων υποτάξεων Ισοπόδων, ii) επίπεδο οικογένειας/γένους – διερεύνηση εξελικτικών σχέσεων ανάμεσα στις κύριες οικογένειες των Crinocheta και των γενών σε μια από τις πλουσιότερες σε αριθμό ειδών οικογένειες (Porcellionidae), και iii) είδους/πληθυσμών – διερεύνηση γενετικής ποικιλότητας εντός του είδους Armadillo officinalis, καλύπτοντας μεγάλο μέρος της εξάπλωσής του, εστιάζοντας ωστόσο στην ενδο-νησιωτική διαφοροποίηση εντός της Κύπρου. Με στόχο τη διερεύνηση της εξελικτικής ιστορίας σε αυτή την πολυεπίπεδη προσέγγιση, εφαρμόστηκε η αλληλούχηση κατά Sanger που στοχεύει μια σειρά μιτοχονδριακών (12s,16s, COI, Cytb) και πυρηνικών (18s, 28s, NAK, PEPCK) γενετικών δεικτών, καθώς και μοναδιαίων νουκλεοτιδικών πολυμορφισμών (SNP) σε ολόκληρο το γονιδίωμα των οργανισμών, εφαρμόζοντας το πρωτόκολλο ddRADseq. Στο επίπεδο βαθιάς φυλογένεσης, τα αποτελέσματά μας υπονομεύουν την ευρέως αποδεκτή μονοφυλετικότητα των Oniscidea. Πιο συγκεκριμένα, το αμφίβιο γένος Ligia φαίνεται να είναι εξελικτικά πιο συγγενικό με υδρόβια ισόποδα από ό,τι με τα υπόλοιπα χερσαία ισόποδα που συμπεριλήφθηκαν στην ανάλυση αυτή. Λαμβάνοντας υπόψη τα στοιχεία που παρατίθενται και αμφισβητούν την κοινή καταγωγή των Ligiidae, θα μπορούσε να υποστηριχθεί ότι το γένος Ligidium, όπως και τα στενά συγγενικά του Tauroligidium και Typhloligidium, ανήκουν σε μια νέα οικογένεια, την Ligidiidae, που διακλαδίζεται στη βάση του φυλογενετικού δέντρου των Oniscidea. Το παραγόμενο φυλογενετικό μοτίβο των υπόλοιπων χερσαίων ταξινομικών κατηγοριών αντανακλά τη σύνθετη εξελικτική ιστορία της ομάδας όσον αφορά τη μετάβαση από το θαλάσσιο στο χερσαίο περιβάλλον. Οι φυλογενετικές αναλύσεις σε επίπεδο οικογένειας/γένους αμφισβήτησαν τόσο τη μονοφυλετικότητα της οικογένειας Porcellionidae όσο και του γένους Porcellio που συγκαταλέγεται στα πλουσιότερα σε αριθμό ειδών γένη της οικογένειας. Σύμφωνα με την κλαδοχρονολόγιση, αν εξαιρεθούν τα γένη Leptotrichus και Brevurus που δεν ομαδοποιούνται με τα υπόλοιπα μέλη της οικογένειας, η μονοφυλετική πλέον οικογένεια Porcellionidae φαίνεται να έχει αφρικανική προέλευση που χρονολογείται από το Ολιγόκαινο (~32 Mya). Εστιάζοντας σε επίπεδο είδους/πληθυσμού, στην περίπτωση του A. officinalis αποκαλύφθηκε υψηλή γενετική διαφοροποίηση που δεν υποδεικνύεται από οποιοδήποτε μορφολογικό χαρακτηριστικό από όσα εξετάσθηκαν μέχρι σήμερα. Αποκαλύφθηκαν πέντε κρυπτικοί γενετικοί κλάδοι στην Κύπρο. Η κλαδοχρονολόγηση δείχνει ότι η άφιξη του είδους στο νησί συνέβη περίπου 6 εκατομμύρια χρόνια πριν, πιθανώς υποβοηθούμενη από την Κρίση Αλατότητας του Μεσσηνίου. Επιπλέον, τα αποτελέσματα υπογραμμίζουν τον ρόλο της παλαιογεωγραφίας και της ανθρώπινης παρουσίας στα υπάρχοντα πρότυπα γενετικής ποικιλότητας. Τα αποτελέσματα που παρουσιάζονται αναδεικνύουν την ανάγκη για επαναξιολόγηση των μορφολογικών χαρακτήρων που χρησιμοποιούνται στην ταξινόμηση των χερσαίων ισοπόδων, λαμβάνοντας υπόψη τα συσσωρευόμενα γενετικά δεδομένα. Έτσι θα οδηγηθούμε σε πιο αξιόπιστες και περιεκτικές φυλογενέσεις που θα μας επιτρέψουν να περιγράψουμε την περίπλοκη εξελικτική ιστορία αυτής της μοναδικής ομάδας που κατάφερε με επιτυχία να κατακτήσει τη χέρσο. Terrestrial isopods (Oniscidea) exhibit some unique properties that make them an excellent case within global biodiversity, offering research opportunities on many biological fields, such as evolution and ecology, but also ecotoxicology, bioacoustics and ecophysiology. With more than 3,700 described species, Oniscidea is the largest and at the same time the only terrestrial isopod suborder. The sea-land transition most probably took place during the Carboniferous, ~300 Mya. Terrestrial isopods are the most successful colonizers of the terrestrial realm among Crustacea, exhibiting a series of diverse morphological, ecological, and behavioural adaptations that allowed them to conquer land. Remarkably, extant species represent almost all evolutionary steps that allowed them to occupy the whole range of terrestrial habitat types, with a few exceptions, including the very harsh desert environments, salt lakes, and subterranean freshwaters, where they have secondarily returned. Oniscidea presence extends from the sea level to very high elevations (>4800 m), excluding polar regions. Despite the constantly accumulating genetic and morphological data, we still lack a comprehensive and robust phylogeny of Isopoda suborders, hence also of Oniscidea. Within the framework of this thesis, the evolutionary dynamics of this group were examined at different taxonomic levels. More precisely, phylogenetic relationships were examined at the following levels: i) deep phylogeny - relationships among the five main Oniscidea clades and with closely related aquatic Isopoda suborders, ii) family/genus level – relationships among some of the major Crinocheta families and among genera of one of the species-richest families (Porcellionidae), and iii) species/population - among Armadillo officinalis species populations, covering a large part of its distribution but focusing mostly on intra-insular divergence within Cyprus. Aiming to reconstruct the evolutionary history along such a multilevel approach, a series of mitochondrial (12s,16s, COI, Cytb) and nuclear (18s, 28s, NAK, PEPCK) markers, as well as genome-wide SNPs were retrieved, employing Sanger and ddRADseq sequencing, respectively. At the deep phylogeny level, our results undermine the widely accepted monophyly of Oniscidea. More specifically, the amphibious genus Ligia appears to be evolutionary more closely related to aquatic isopod taxa than the rest of the terrestrial isopods included in the analysis. Considering the evidence against the monophyly of Ligiidae presented herein, we suggest the assignment of Ligidium and of the closely related genera Tauroligidium and Typhloligidium to a new family, Ligidiidae, that possesses a basal position within Oniscidea phylogeny. The produced phylogenetic pattern of the remaining terrestrial taxa reflects the complex evolutionary history of the group in view of the transition from the marine to the terrestrial realm. Time-calibrated phylogenetic analyses at family/genus level questioned both the monophyly of Porcellionidae and Porcellio, one of the family’s richest genera. Excluding the genera Leptotrichus and Brevurus that are not grouped with the rest of family members, the now monophyletic Porcellionidae seems to have an African origin that dates back to the Oligocene (~32 Mya). Focusing on species/population level, in the case of A. officinalis we found high genetic divergence, not suggested by any of the morphological traits examined so far. The presence of five cryptic genetic lineages on Cyprus was revealed. Cladochronological dating indicates that the species arrival on the island occurred ~6 Mya, probably facilitated by the Messinian Salinity Crisis. Furthermore, results highlight the role of paleogeographic history and of human presence in shaping patterns of genetic diversity. Our results call for a re-evaluation of morphological characters traditionally used in terrestrial isopod taxonomy, under the light of the constantly accumulating genetic data. This way, we can attain more robust and comprehensive phylogenies which will allow us to describe the complex evolutionary history of this unique group that managed to conquer land.
- Published
- 2021
17. Toxicity interaction between chlorpyrifos, mancozeb and soil moisture to the terrestrial isopod Porcellionides pruinosus.
- Author
-
Morgado, Rui G., Gomes, Pedro A.D., Ferreira, Nuno G.C., Cardoso, Diogo N., Santos, Miguel J.G., Soares, Amadeu M.V.M., and Loureiro, Susana
- Subjects
- *
CHLORPYRIFOS , *MANCOZEB , *SOIL moisture , *PORCELLIONIDAE , *ENVIRONMENTAL risk assessment - Abstract
A main source of uncertainty currently associated with environmental risk assessment of chemicals is the poor understanding of the influence of environmental factors on the toxicity of xenobiotics. Aiming to reduce this uncertainty, here we evaluate the joint-effects of two pesticides (chlorpyrifos and mancozeb) on the terrestrial isopod Porcellionides pruinosus under different soil moisture regimes. A full factorial design, including three treatments of each pesticide and an untreated control, were performed under different soil moisture regimes: 25%, 50%, and 75% WHC. Our results showed that soil moisture had no effects on isopods survival, at the levels assessed in this experiment, neither regarding single pesticides nor mixture treatments. Additivity was always the most parsimonious result when both pesticides were present. Oppositely, both feeding activity and biomass change showed a higher sensitivity to soil moisture, with isopods generally showing worse performance when exposed to pesticides and dry or moist conditions. Most of the significant differences between soil moisture regimes were found in single pesticide treatments, yet different responses to mixtures could still be distinguished depending on the soil moisture assessed. This study shows that while soil moisture has the potential to influence the effects of the pesticide mixture itself, such effects might become less important in a context of complex combinations of stressors, as the major contribution comes from its individual interaction with each pesticide. Finally, the implications of our results are discussed in light of the current state of environmental risk assessment procedures and some future perspectives are advanced. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
18. Abiotic factors affect the performance of the terrestrial isopod Porcellionides pruinosus.
- Author
-
Morgado, Rui, Ferreira, Nuno G.C., Cardoso, Diogo N., Soares, Amadeu M.V.M., and Loureiro, Susana
- Subjects
- *
PORCELLIONIDAE , *SOIL ecology , *ABIOTIC environment , *GLOBAL environmental change , *SOIL moisture , *SOIL temperature - Abstract
Abiotic factors constitute one of the most important drivers shaping soil ecosystems. Although being a strongly buffered environment, soil heterogeneous nature combined with the limited mobility of its organisms can make them highly sensitive to unfavourable conditions. A thorough knowledge of these relationships is thus a critical starting point to understand the challenges posed to edaphic organisms in a context of global environmental changes and the implications arising therefrom. In this study we evaluated the influence of temperature, soil moisture and UV radiation on the performance of the terrestrial isopod Porcellionides pruinosus using several endpoints: survival, locomotor activity, feeding parameters and avoidance behaviour. At the range assessed, temperature did not affect isopods’ survival but showed marked effects on sublethal endpoints. Both feeding parameters and locomotor activity showed a right-shifted response with gradual temperature-induced optimisation in isopods’ performance until reaching an optimum temperature and abruptly declining thereafter. On the contrary, soil moisture was found to significantly affect isopods’ survival but the effects on the feeding parameters were not clear. Although exhibiting a clear preference for intermediate soil moistures, isopods were particularly sensitive to drier environments since higher percentages of avoidance were found. UV radiation affected survival, body weight and locomotor performance. Abiotic factors affect soil organisms at relevant conditions and must therefore be considered while developing tools for edaphic ecosystems’ protection such as ecotoxicological testing and further environmental risk assessment. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
19. Un estudio de artrópodos epigeos en entornos costeros con influencia urbana cerca de El Altet, sureste de España
- Author
-
Alfredo E. Giraldo-Mendoza
- Subjects
0106 biological sciences ,urbanización ,Mediterráneo occidental ,010607 zoology ,Forficulidae ,fragmentación ,010603 evolutionary biology ,01 natural sciences ,Isopoda ,Porcellionidae ,Abundance (ecology) ,Ruderal species ,Ambientes costeros ,Ecology, Evolution, Behavior and Systematics ,artrópodos epigeos ,biology ,Ecology ,Vegetation ,biology.organism_classification ,Geography ,Habitat ,QL1-991 ,coleópteros psamófilos ,Animal Science and Zoology ,Epigeal ,Zoology - Abstract
Se realizó un estudio preliminar para caracterizar ensambles de artrópodos epígeos en entornos costeros con influencia urbana cerca de la ciudad de El Altet (Alicante, España), que incluyen duna fija, tomillar, duna móvil y vegetación ruderal. Para ello, se realizó una serie de métricas de diversidad y análisis multivariado con base en un relevamiento realizado desde noviembre de 2004 a marzo de 2005. El hábitat de vegetación ruderal (RV) tuvo mayor abundancia y baja diversidad de artrópodos epigeicos, así como predominio de taxones sinantrópicos, principalmente Dermaptera (Forficulidae) e Isopoda (Armadillidae, Porcellionidae). En contraste, el hábitat de dunas móviles (YD) tuvo abundancia intermedia y baja diversidad, con predominio de coleópteros psamófilos, particularmente Tenebrionidae. Mientras que los hábitats de tomillar y duna fija (HD + GD) tuvieron baja abundancia y alta diversidad, siendo Chrysomelidae y Tenebrionidae nativos sus taxones más representativos.
- Published
- 2021
20. Long-term exposure of the isopod Porcellionides pruinosus to nickel: Costs in the energy budget and detoxification enzymes.
- Author
-
Ferreira, Nuno G.C., Cardoso, Diogo N., Morgado, Rui, Soares, Amadeu M.V.M., and Loureiro, Susana
- Subjects
- *
PORCELLIONIDAE , *BIOENERGETICS , *ACETYLCHOLINESTERASE , *ENZYME activation , *LIPID peroxidation (Biology) - Abstract
Terrestrial isopods from the species Porcellionides pruinosus were exposed to the maximum allowed nickel concentration in the Canadian framework guideline (50 mg Ni/kg soil) and to 5× this concentration (250 mg Ni/kg soil). The exposure lasted for 28 days and was followed by a recovery period of 14 days where organisms were changed to clean soil. Organisms were sampled after 24 h, 48 h, 96 h, 7 days, 14 days, 21 days, and 28 days of exposure, and at days 35 and 42 during the recovery period. For each sampling time the acetylcholinesterase (AChE), glutathione- S -transferases (GST), catalase (CAT), lactate dehydrogenase (LDH) activities were determined as well as lipid peroxidation rate (LPO) along with lipids, carbohydrates, proteins content, energy available (Ea), energy consumption (Ec) and cellular energy allocation (CEA). The integrated biomarker response (IBR) was calculated for each sampling time as well as for each one of the above parameters. In addition, mortality was also recorded throughout the assay. The results obtained showed that nickel induced oxidative stress, evidenced by results on GST, GPx, CAT or LPO, but also on changes in the energy reserves content of these organisms. In addition, this study showed that these organisms possess a specific strategy to handle nickel toxicity. In this case, biomarkers were associated with costs in the energy budget, and the increase of energy reserves has a compensation for that cost. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
21. Study of the analgesic activities, chronic toxicity and addictive potential of Jia-Yuan-Qing pill in rats.
- Author
-
YE TIAN, LI-RONG TENG, ZHEN-ZUO WANG, MIN ZHAO, QING-FAN MENG, JIA-HUI LU, JIAN-MING TIAN, WEI-WEI ZHANG, XIAOYI ZHENG, DI WANG, and LE-SHENG TENG
- Subjects
- *
PORCELLIONIDAE , *PAPAVERACEAE , *MEDICAL emergencies , *INCURABLE diseases , *CARCINOGENS - Abstract
Jia-Yuan-Qing pill (JYQP) composed of Porcellio laevis Latreille, Corydalis Rhizoma and Radix Cynanchi Paniculati at a ratio of 9:7:7 has been found to be an effective analgesic agent. The present study aimed to evaluate the safety, addictive potential and anti-cancer pain activity of JYQP in a rat model. During the 6-month chronic toxicity test, no significant changes in general behavior, defecation, postural abnormalities, dietary or water intake or blood biochemical parameters were observed in male and female rats. Although a high dose of JYQP (5 g/kg) caused swelling of the liver, spleen and kidney in male and female rats, no pathological changes were observed in all organs examined via hematoxylin and eosin staining. The analgesic effect of JYQP on bone cancer pain was successfully confirmed in a rat model of Walker 256 cell-induced bone cancer. In contrast to morphine, in a physical dependence test, JYQP produced no withdrawal symptoms following chronic administration. The data from this study provide experimental evidence supporting the clinical use of JYQP as an effective, safe and non-addictive agent for the treatment of bone cancer pain. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
22. CeO2 nanoparticles induce no changes in phenanthrene toxicity to the soil organisms Porcellionides pruinosus and Folsomia candida.
- Author
-
Tourinho, Paula S., Waalewijn-Kool, Pauline L., Zantkuijl, Irene, Jurkschat, Kerstin, Svendsen, Claus, Soares, Amadeu M.V.M, Loureiro, Susana, and van Gestel, Cornelis A.M.
- Subjects
CERIUM oxide crystals ,SOIL invertebrates ,PHENANTHRENE ,IN vivo toxicity testing ,COLLEMBOLA ,PORCELLIONIDAE - Abstract
Cerium oxide nanoparticles (CeO
2 NPs) are used as diesel fuel additives to catalyze oxidation. Phenanthrene is a major component of diesel exhaust particles and one of the most common pollutants in the environment. This study aimed at determining the effect of CeO2 NPs on the toxicity of phenanthrene in Lufa 2.2 standard soil for the isopod Porcellionides pruinosus and the springtail Folsomia candida . Toxicity tests were performed in the presence of CeO2 concentrations of 10, 100 or 1000 mg Ce/kg dry soil and compared with results in the absence of CeO2 NPs. CeO2 NPs had no adverse effects on isopod survival and growth or springtail survival and reproduction. For the isopods, LC50s for the effect of phenanthrene ranged from 110 to 143 mg/kg dry soil, and EC50s from 17.6 to 31.6 mg/kg dry soil. For the springtails, LC50s ranged between 61.5 and 88.3 mg/kg dry soil and EC50s from 52.2 to 76.7 mg/kg dry soil. From this study it may be concluded that CeO2 NPs have a low toxicity and do not affect toxicity of phenanthrene to isopods and springtails. [ABSTRACT FROM AUTHOR]- Published
- 2015
- Full Text
- View/download PDF
23. Porcellionides pruinosus (Brandt, 1833) – a new woodlouse species (Isopoda: Oniscidea: Porcellionidae) in the fauna of Belarus
- Author
-
Artsiom M. Ostrovsky
- Subjects
0106 biological sciences ,Arthropoda ,QH301-705.5 ,Woodlouse ,Fauna ,Species distribution ,010607 zoology ,Nephrozoa ,Zoology ,Protostomia ,Porcellionides ,Plant Science ,Oniscidea ,010603 evolutionary biology ,01 natural sciences ,Circumscriptional names of the taxon under ,Isopoda ,Eumalacostraca ,Porcellionidae ,Crustacea ,Animalia ,Bilateria ,Biology (General) ,Malacostraca ,Porcellionides sexfasciatus ,Ecology, Evolution, Behavior and Systematics ,Nature and Landscape Conservation ,Porcellionides pruinosus Isopoda Oniscidea Porcellionidae new record Belarus ,Global and Planetary Change ,Ecology ,biology ,Armadillidium versicolor ,Carocryptus ,Scutocoxifera ,Cephalornis ,Porcellionides pruinosus ,biology.organism_classification ,Notchia ,Insect Science ,Paradiastylis whitleyi ,Ecdysozoa ,Animal Science and Zoology ,Coelenterata - Abstract
Abstract We presented our findings of woodlouse Porcellionides pruinosus (Brandt, 1833), a new Porcellionidae species for the fauna of Belarus. We collected this species in Gomel region (June 2020). We also presented the data on species distribution.
- Published
- 2020
24. New records of exotic species of Oniscidea (Crustacea: Isopoda) from northern Mexico
- Author
-
Gopal Murugan, Gabino A. Rodríguez-Almaraz, Ilse E. Segura-Zarzosa, Alejandro M. Maeda-Martínez, José Alfredo Treviño-Flores, and Hortencia Obregón-Barboza
- Subjects
0106 biological sciences ,Porcellio laevis ,Armadillidium vulgare ,geography ,geography.geographical_feature_category ,biology ,010607 zoology ,Zoology ,Introduced species ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Porcellionides pruinosus ,Isopoda ,Porcellionidae ,Armadillidiidae ,Ecology, Evolution, Behavior and Systematics ,Riparian zone - Abstract
To date 86 species of 33 genera and 16 families of Oniscidea have been recorded in Mexico. Collections of 4 academic institutions and recent field materials were revised. From 1,820 specimens, 1,417 (77.6%) were determined to belong to 6 exotic forms. A taxonomic account and a species identification key with SEM plates of these exotic entities are presented. For morphological analysis we used light and SEM microscopy. The molecular identity of 5 of the 6 forms was examined through cytochrome oxidase 1 gene (mtDNA) analyses. The exotic species determined are: Armadillidae, Cubaris murina ; Armadillidiidae, Armadillidium vulgare ; Porcellionidae, Agabiformius lentus , Porcellio laevis, P. scaber, and Porcellionides pruinosus . The exotic oniscideans were recorded from urban, rural and natural (riparian) zones in 15 states of northern Mexico, including the first formal records in Aguascalientes, Chihuahua, Durango, and Zacatecas. Armadillidium vulgare, P. laevis, and P. pruinosus often co-occurred and are the most widely distributed species in this region. Although most of the material examined was recorded from urban zones (> 50% of studied sites), A. vulgare and P. laevis were also found in riparian areas (natural zones), yet P. pruinosus was recorded mainly from riparian areas (60% of 45 lots examined).
- Published
- 2020
25. Comparison of terrestrial isopod (Crustacea: Oniscidea) assemblages from two preserved areas (Bouhedma and Chambi) in arid regions
- Author
-
Mohamed Fadhel Bouslama, Mohamed Sghaïer Achouri, Wahiba Zaabar, and M. Khila
- Subjects
biology ,Ecology ,seasonal pattern ,biology.organism_classification ,Arid ,Crustacean ,Oniscidean diversity ,altitudinal gradient ,Geography ,Porcellionidae ,arid region and mountain ,lcsh:Zoology ,Animal Science and Zoology ,lcsh:QL1-991 ,Species richness ,species richness - Abstract
A total of 1290 specimens belonging to 11 species and four families were captured in two national parks, Bouhedma and Chambi. Among these species, seven belonged to Porcellionidae, and the remaining species represented Agnaridae, Armadillidae and Armadillidiidae families. Five species were common and recorded in both parks. However, Armadillidium tunisiense, Hemilepistus reaumurii and Porcellio djahizi were recorded only in Chambi while Agabiformius lentus, Armadillo officinalis and Porcellio albinus were collected only in Bouhedma. The distribution structure of the collected species was analyzed according to altitude and plant assemblages. Seasonal sampling showed that the highest abundance and species richness were recorded in spring. In both parks, the species richness decreased as the altitude increased. Arid regions sheltered specific species such as H. reaumurii and P. albinus, which were often the dominant component of the arthropod macrodecomposer guild in some habitats. The similarity analysis showed a quantitative and qualitative difference between the two parks. The two parks Bouhedma and Chambi shared five species (Leptotrichus panzerii, Porcellio laevis, P. variabilis, Porcellionides pruinosus, Armadillidium sulcatum) with areas studied in the north of Tunisia, Kroumirie, supralittoral zones and around the wetlands.
- Published
- 2018
26. Evaluation of the joint effect of glyphosate and dimethoate using a small-scale terrestrial ecosystem.
- Author
-
Santos, Miguel J.G., Morgado, Rui, Ferreira, Nuno Gonçalo C., Soares, Amadeu M.V.M., and Loureiro, Susana
- Subjects
PHYSIOLOGICAL effects of agricultural chemicals ,PHYSIOLOGICAL effects of glyphosate ,PHYSIOLOGICAL effects of insecticides ,DOSE-response relationship in biochemistry ,HERBICIDE content of soils ,SOIL microbiology ,EISENIA ,PORCELLIONIDAE ,BRASSICA - Abstract
In the present work a small-scale terrestrial ecosystem (STEM) containing a soil collected from an agricultural field in Central Portugal was used to evaluate the effects of the combination of the herbicide glyphosate and the insecticide dimethoate. Earthworms (Eisenia andrei), isopods (Porcellionides pruinosus), turnip seeds (Brassica rapa), and bait-lamina strips were placed in the STEM. The results showed that the application of the recommended field dose of both pesticides did not cause any effect on the weight variation of earthworms and growth of the plants. The application of the herbicide, even at 5 and 10 times the field dose, increased feeding activity in soil (bait-lamina test), although the application of dimethoate led to a decrease in feeding activity in all concentrations tested. The binary mixtures performed showed that according to the Independent Action model, synergism (higher effect than expected from the single exposures) was observed in both the shoot length and fresh weight of B. rapa at 5 times the field dose, but antagonism was observed at 10 times the field dose. Regarding the germination success, synergism was observed at the field dose, but antagonism was detected at 5 times and 10 times the field dose. There was a decrease on the earthworm''s weight in all concentrations tested, although no statistical differences were observed in any of the treatments made. Regarding depth distribution of E. andrei, worms were found in the upper layer more than it was predicted for all concentrations. In the mixtures with the field and 5 times the field dose there was a decrease in the feeding activity (bait-lamina consumption) by the soil fauna. From the four biomarkers assessed on the isopods (Catalase, Acetylcholinesterase, Glutathione-S-transferase, and Lipid peroxidation), only a significant decrease in the Acetylcholinesterase activity upon dimethoate and the binary mixtures exposures performed with the field dose was observed and on Lipid peroxidation at the field doses of single and binary exposures. [Copyright &y& Elsevier]
- Published
- 2011
- Full Text
- View/download PDF
27. Basal levels of enzymatic biomarkers and energy reserves in Porcellionides pruinosus
- Author
-
Ferreira, Nuno G.C., Santos, Miguel J.G., Domingues, Inês, Calhôa, Carla F., Monteiro, Marta, Amorim, Mónica J.B., Soares, Amadeu M.V.M., and Loureiro, Susana
- Subjects
- *
BIOMARKERS , *ENZYMATIC analysis , *PORCELLIONIDAE , *POLLUTANTS , *ISOPODA , *PLANT species , *ENERGY storage , *CHOLINESTERASES , *ACETYLCHOLINESTERASE , *OXIDATIVE stress - Abstract
Abstract: In the last decades biomarkers have been widely used for the assessment of effects and/or exposure to environmental contaminants, but to our knowledge few data has been published for isopod species. Along with biomarkers the quantification of energy reserves has also been used to evaluate organisms’ energetic budget. Enzymatic biomarkers can also be useful to understand chemicals/stress modes of action. The aim of this study was to obtain information on biomarker basal level activities and energy contents of the isopod Porcellionides pruinosus as little information is available. Results can then be used as foundations for other ecotoxicological or biomonitorization studies and also as control values for evaluating isopod status in laboratory cultures. The cholinesterase (ChE) type of the isopod P. pruinosus was characterized using three substrates (acetylthiocholine iodide, propionylthiocholine iodide, and S-butyrylthiocholine iodide) and three ChE inhibitors (eserine hemisulfate, tetraisopropyl pyrophosphoramide (iso-OMPA) and 1,5-bis(4-allyldimethyl-ammonimphenyl) pentan-3-one dibromide (BW284C51)]. The results showed that this organism has only one cholinesterase form, the acetylcholinesterase with a mean basal level of 113.6 ± 4.7 U/mg protein. Other biomarkers related to oxidative stress or metabolism were assessed, showing activity ranges of 3.0 ± 1.1 U/mg protein for lactate dehydrogenase (LDH), 6.1 ± 1.1 U/mg protein for catalase (CAT), 2.7 ± 1.1 U/mg protein for glutathione peroxidase (GPx), 34.6 ± 4.7 nmol/mg ww for lipid peroxidation (LPO) and 137.8 ± 7.1 U/mg protein for glutathione S-transferases (GST) (mean ± st. error). The carbohydrates and protein contents were 12290.8 ± 56.4 J/mg organism (org) and 22905 ± 57.5 J/mg org, respectively (mean ± st. error). The mean lipid content was 503.1 ± 12.7 J/mg org. Our results were compared to other previous works with isopod species but also with other species, showing high levels of inter and intraspecific variability. Even tough this study can contribute as foundations for other studies as ChE characterization, optimization of homogenization procedures and basal levels for biomarker activity and energy reserves were described. [Copyright &y& Elsevier]
- Published
- 2010
- Full Text
- View/download PDF
28. Joint effects of three plant protection products to the terrestrial isopod Porcellionides pruinosus and the collembolan Folsomia candida
- Author
-
Santos, Miguel J.G., Soares, Amadeu M.V.M., and Loureiro, Susana
- Subjects
- *
ISOPODA , *CANDIDA , *PORCELLIONIDAE , *APPLICATION of pesticides , *PLANT protection , *PEST control , *GLYPHOSATE , *COMBINATORICS - Abstract
Abstract: The effects of simultaneous application of plant protection products are of concern since the uses of different products pose an additional risk to non-target soil organisms. The effects of binary combinations of dimethoate, glyphosate and spirodiclofen, an insecticide an herbicide and an acaricide, on the avoidance behaviour of the terrestrial isopod Porcellionides pruinosus and the reproductive effort of Folsomia candida were assessed using the two reference models of concentration addition (CA) and independent action (IA). Results of single exposure to the three pesticides indicated a clear dose related avoidance response of the isopods in the highest concentrations tested of the three as well as a strong decrease in collembolan adult survival and concomitant number of juveniles produced. In the combined experiments, antagonism was found in 7 out of the 12 combinations, four combinations followed the reference models, and only in one combination synergism was detected (lower doses of glyphosate and spirodiclofen applied to P. pruinosus). In conclusion, it seems that mixing and applying these products, at the recommended field application rate, does not lead to enhanced toxicity, hence limited risk is associated with the joint application of these pesticides. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
29. DOES SUBCELLULAR DISTRIBUTION IN PLANTS DICTATE THE TROPHIC BIOAVAILABILITY OF CADMIUM TO PORCELLIO DILATATUS (CRUSTACEA, ISOPODA)?
- Author
-
Monteiro, Marta S., Santos, Conceição, Soares, Amadeu M. V. M., and Mann, Reinier M.
- Subjects
- *
MEDICAL research , *SUBCELLULAR fractionation , *CADMIUM , *PORCELLIONIDAE , *HYPERACCUMULATOR plants , *BIOAVAILABILITY , *METALLOPROTEINS , *BRASSICACEAE , *BIOMOLECULES - Abstract
The present study examined how subcellular partitioning of Cd in plants with different strategies to store and detoxify Cd may affect trophic transfer of Cd to the isopod Porcellio dilatatus. The plant species used were Lactuca sativa, a horticultural metal accumulator species; Thlaspi caerulescens, a herbaceous hyperaccumulator species; and the nonaccumulator, T. arvense. Taking into account that differences in subcellular distribution of Cd in plants might have an important role in the bioavailability of Cd to a consumer, a differential centrifugation technique was adopted to separate plant leaf tissues into four different fractions: cell debris, organelles, heat-denatured proteins, and heat-stable proteins (metallothionein-like proteins). Plants were grown in replicate hydroponic systems and were exposed for 7 d to 100 μM Cd spiked with 109Cd. After a 14-d feeding trial, net assimilation of Cd in isopods following consumption of T. caerulescens and T. arvense leaves reached 16.0 ± 2.33 and 21.9 ± 1.94 μg/g animal, respectively. Cadmium assimilation efficiencies were significantly lower in isopods fed T. caerulescens (10.0 ± 0.92%) than in those fed T. arvense (15.0 ± 1.03%). In further experiments, Cd assimilation efficiencies were determined among isopods provided with purified subcellular fractions of the three plants. On the basis of our results, Cd bound to heat-stable proteins was the least bioavailable to isopods (14.4-19.6%), while Cd bound to heat-denatured proteins was the most trophically available to isopods (34.4-52.8%). Assimilation efficiencies were comparable in isopods fed purified subcellular fractions from different plants, further indicating the importance of subcellular Cd distribution in the assimilation. These results point to the ecological relevance of the subcellular Cd distribution in plants, which directly influence the trophic transfer of Cd to the animal consumer. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
- View/download PDF
30. Analyse phénétique des populations de Porcellionides pruinosus (Brandt, 1833) (Crustacea, Isopoda, Oniscidea)
- Author
-
Achouri, Mohamed Sghaïer and Charfi-Cheikhrouha, Faouzia
- Subjects
- *
PORCELLIONIDAE , *BIOLOGICAL variation , *ANIMAL morphology , *REPRODUCTION , *ANIMAL sexual behavior - Abstract
Abstract: The cosmopolitan species, Porcellionides pruinosus (Brandt, 1833), exhibited a geographical variation of its morphological features and its reproduction pattern. In fact, some Tunisian populations had a seasonal reproductive period and other ones showed a reproductive activity. A phenetic analysis has been performed to compare populations belonging to P. pruinosus from different geographical localities. For this, nineteen quantitative characters in 800 specimens of P. pruinosus issued from nine populations located in the North, the Centre, and the South of Tunisia, and one population from Athens (Greece) were studied. These populations were characterized by different reproductive behaviours. The populations of Tabarka, Korba, and Tamerza showed reproductive activity, whereas those of Garat Nâam, Raccada, Sahline, Gafsa, Rdayef, Gabès, and Athens exhibited a seasonal reproductive period. The variability of the first three axes of the principal components analysis (PCA) and their significance showed an intraspecific variability structure. The graphical representation of the population''s dispersion generated by the two first axes (63.55% of the total variability) revealed a great heterogeneity among females of the different populations of P. pruinosus. The Garat Nâam population was set apart from the other ones by its cephalic width and length and also by its apophysis length. Furthermore, cephalic and uropod length separated the Garat Nâam and Tabarka populations. The dendrogram, based on Euclidean coordinates, confirms an isolation of the populations of Tabarka and Garat Nâam, exhibiting respectively reproductive activity and seasonal reproduction. However, the other populations do not show any relationship with the reproduction behaviour. They were clustered in two groups. The first one is represented by the populations of the Southeast and the West of Tunisia. The second pooled the populations of the Northeast and the Centre of Tunisia with the population of Athens (Greece). Phenetic analysis of Tunisian populations exhibits an important heterogeneity, which is worth noting. Thus, we need to complete and deepen this study by genetic analysis and crossbreeding tests in order to define the taxonomic status of these populations. To cite this article: M.S. Achouri, F. Charfi-Cheikhrouha, C. R. Biologies 331 (2008). [Copyright &y& Elsevier]
- Published
- 2008
- Full Text
- View/download PDF
31. "Candidatus Bacilloplasma," a Novel Lineage of Mollicutes Associated with the Hindgut Wall of the Terrestrial Isopod Porcellio scaber (Crustacea: Isopoda).
- Author
-
Kostanjšek, Rok, Štrus, Jasna, and Avguštin, Gorazd
- Subjects
- *
MYCOPLASMATALES , *IN situ hybridization , *MYCOPLASMA , *PROKARYOTES , *FUNGUS-bacterium relationships , *PORCELLIONIDAE , *CRUSTACEA , *RNA - Abstract
Pointed, rod-shaped bacteria colonizing the cuticular surface of the hindgut of the terrestrial isopod crustacean Porcellio scaber (Crustacea: Isopoda) were investigated by comparative 16S rRNA gene sequence analysis and electron microscopy. The results of phylogenetic analysis, and the absence of a cell wall, affiliated these bacteria with the class Mollicutes, within which they represent a novel and deeply branched lineage, sharing less than 82.6% sequence similarity to known Mollicutes. The lineage has been positioned as a sister group to the dade comprising the Spiroplasma group, the Mycoplasma pneumoniae group, and the Mycoplasma hominis group. The specific signature sequence was identified and used as a probe in in situ hybridization, which confirmed that the retrieved sequences originate from the attached rod-shaped bacteria from the hindgut of P. scaber and made it possible to detect these bacteria in their natural environment. Scanning and transmission electron microscopy revealed a spherically shaped structure at the tapered end of the rod-shaped bacteria, enabling their specific and exclusive attachment to the tip of the cuticular spines on the inner surface of the gut. Specific adaptation to the gut environment, as well as phylogenetic positioning, indicate the long-term association and probable coevolution of the bacteria and the host. Taking into account their pointed, rod-shaped morphology and their phylogenetic position, the name "Candidatus Bacilloplasma" has been proposed for this new lineage of bacteria specifically associated with the gut surface of P. scaber. [ABSTRACT FROM AUTHOR]
- Published
- 2007
- Full Text
- View/download PDF
32. Genetics of pigmentation in Porcellio scaber Latreille, 1804 (Isopoda, Oniscidea).
- Author
-
Bhella, Sita, Fung, Eleanor, Harrison, Janet, Ing, Bryant, Larsen, Ellen W., and Selby, R. Duncan
- Subjects
- *
PORCELLIO scaber , *PORCELLIONIDAE , *ANIMAL genetics , *ANIMAL coloration , *EYE color - Abstract
In the sowbug, Porcellio scaber Latreille, 1804 (Isopoda, Oniscidea), the genetics of carapace and eye colour were investigated. Carapace shield colours studied include white, dark grey/brown, light orange, and a variegated phenotype consisting of an orange background with darker brownish pigmented regions. Eye colours found include colourless, red, and black. Two loci, one with two alleles the other with three alleles, can explain the patterns of inheritance we found in the carapace shield and eyes. Alleles at a single locus with incomplete dominance appear to control carapace edge colour. Interactions between some alleles at different loci were discovered and correlations between eye and carapace colours are described. Variegation was limited to females and not expressed in males of similar genotype. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF
33. STRATÉGIE DE REPRODUCTION ET DE CROISSANCE DE DEUX ESPÈCES SYMPATRIQUES DU GENRE PORCELLIONIDES (ISOPODA, ONISCIDEA) DE TUNISIE
- Author
-
Achouri, Mohamed S. and Charfi-Cheikhrouha, Faouzia
- Subjects
- *
REPRODUCTION , *ANIMAL breeding , *PORCELLIONIDAE , *CRUSTACEA , *ANIMAL species - Abstract
The biology and population dynamics of two sympatric species of Oniscidea, Porcellionides pruinosus and P. sexfasciatus from the population of Garat Nâam (Kasserine, Tunisia) have been studied based on monthly sampling carried out from July 1996 to June 1998. P. pruinosus was more abundant on the sampling locality. Both species show a seasonal reproduction period. The population of P. pruinosus showed two distinct breeding peaks, while P. sexfasciatus exhibited only one spring breeding, from March to May. In P. pruinosus, larger ovigerous females were present during the first reproduction period, while gravidity in smaller females was restricted to the second breeding wave. Juveniles derived from different breeding waves showed remarkable differences in size. Also, a striking variability in the size of juveniles of the same age was observed between these two species. During the study period, analysis of size frequency distributions allowed the identification of 14 cohorts in each species. Three of these cohorts were followed in P. sexfasciatus, and four in P. pruinosus. The growth rate varied with developmental stage and with season. In winter, low temperature reduces the growth rate by decreasing moulting frequency, while in spring the increase in temperature induces growth. Sexual maturation of females is reached at approximately 2.5 months and at an average length of 4.23 ± 0.21 mm in P. pruinosus, and 5.5 months or 6.83± 0.23 mm in P. sexfasciatus. The total number of hatched eggs or embryos is positively correlated with body length of ovigerous females. In P. pruinosus, ovigerous females show distinct strategies of reproduction: the first one in spring with large females and high fecundity and fertility; the second in autumn characterized by small females and low fecundity and fertility. Reproduction strategies, K for P. sexfasciatus and r for P. pruinosus, the reproduction potential, and effort could explain the abundance of P. pruinosus at the station of Garat Nâam. Also, this difference in abundance was due to the growth difference between the two species, the presence of two breeding peaks, and a female-biased sex ratio, which was often in equilibrium in P. sexfasciatus, but which was always skewed in favour of females in P. pruinosus. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF
34. Genetic and morphological analysis of Tunisian populations of Porcellio variabilis Lucas (Crustacea, Isopoda, Oniscidea).
- Author
-
Medini-Bouaziz, Lamia, Montesanto, Giuseppe, Charfi-Cheikhrouha, Faouzia, Caruso, Domenico, and Lombardo, Bianca M.
- Subjects
- *
PORCELLIO , *PORCELLIONIDAE , *MORPHOLOGY , *ENZYMES , *CRUSTACEA population genetics - Abstract
Specimens of Porcellio variabilis coming from Tunisian populations were genetically and morphologically examined. Ten loci were analysed by Multilocus Enzyme Electrophoresis (Mdh1, Mdh2, Idh1, Idh2, Got1, Got2, Pgm, Est1, Acph, Phi). The low values of genetic distance (average DN = 0.101) and the morphological differences found between the various populations do not allow a clear separation, even if the population of Ain Drahem shows the most significant differentiation with respect to all the others (about 0.150 for DN values). [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF
35. Morphological and reproductive variability in Porcellionides pruinosus (Brandt, 1833) from Tunisia (Isopoda, Oniscidea).
- Author
-
Achouri, Mohamed S. and Charfi-Cheikhrouha, Faouzia
- Subjects
- *
PORCELLIONIDAE , *FERTILITY , *POPULATION , *ELECTRON microscopes , *ANIMAL sexual behavior - Abstract
Six populations of Porcellionides pruinosus from different geographical localities, belonging to five bioclimatic areas in Tunisia, showed a variable reproductive behaviour. Some populations presented seasonal reproduction while other ones exhibited continuous reproduction. Populations with seasonal reproduction showed two distinct breeding peaks. The first peak in spring was characterized by large gravid females with the greatest fecundity and fertility, the second one, in autumn by small females, exhibiting low fecundity and fertility. Females are able to produce two or three broods per reproductive cycle in populations showing seasonal reproduction, and between four and five in continuously breeding populations. Although oscillating throughout the year, the sex ratio was female-biased in most populations, and differences were highly significant in populations with continuous reproduction. Analysis with the scanning electron microscope showed important phenotypic variation between the populations studied in the form of the pleotelson and its lateral borders that seem to exhibit reliable differences between the specimens examined. These features can be used as discriminating characters between populations of Porcellionides pruinosus. [ABSTRACT FROM AUTHOR]
- Published
- 2005
- Full Text
- View/download PDF
36. Effects of of Habitats and Pesticides on Aerobic Capacity and Survival of Soil Fauna.
- Author
-
Tripathi, G. and Sharma, B. M.
- Subjects
SOIL animals ,PESTICIDES ,HABITATS ,PORCELLIONIDAE ,SOIL biology ,BEETLES - Abstract
Objective Faunal health is largely dependent on their soil environment and available litter quality. So the effects of different soil habitats and pesticides on citrate synthase (CS) activity of soil fauna and its population were studied. Methods The soil animals were collected from different pedoecosystems for habitat study. Whereas Vigna radiata based system was selected for pesticidal observations. The field was divided into five equal plots for control and treatment of γ-BHC, quinalphos, carbaryl and cypermethrin. Soil fauna was collected by quadrat method and extracted by Tullgren funnel. Individuals of a species having similar sizes were collected for the estimation of CS activity. They were homogenized and fractions were obtained by differential centrifugation. The activity of CS was assayed spectrophotometrically. Results Citrate synthase (CS) activity of beetle (Rasphytus fregi), woodlouse (Porcellio laevis) and centipede (Scolopendra morsitans) varied significantly with respect to changes in different soil habitats. Though the CS activity of R. fregi, P. laevis, and S. morsitans differed among themselves but the highest activity of CS in these animals was in V radiata and lowest in A. nilotica based pedoecosystem. The aerobic capacity of centipede was maximum followed by woodlouse and beetle. The treatment of γ-BHC, quinalphos, carbaryl and cypermethrin significantly reduced the CS activity of these animals. γ-BHC showed maximum reduction in CS activity indicating highly toxic effect of organochlorine on aerobic metabolism of soil fauna. However, minimum reduction was observed in response to carbaryl (in beetle) or cypermethrin (in woodlouse/centipede) leading to impairment of aerobic capacity. The differences in pesticide effects might be assigned to the differences in chemical nature of pesticides and their interactions with below-ground fauna. Treatment of γ-BHC and quinalphos reduced the population of Acari, Coleoptera, Collembola, other arthropods as well as total soil fauna. Acari was least affected by γ-BHC and maximally affected (72%) in response to quinalphos. The effect of γ-BHC was fairly similar on Coleoptera, Collembola, other arthropod and total soil fauna suggesting almost similar sensitivity to this pesticide. Likewise, quinalphos was similarly effective on Collemobola and other soil arthropods. Application of carbaryl decreased Acari and Coleoptera population but increased Collembola, other arthropods and total faunal populations. However, application of cypermethrin significantly reduced the population of Acari, Coleoptera, Collembola and total soil fauna and increased the population of other soil arthropods. In both the cases, acarine population was least affected. Conclusion The observations show the habitat-specific variation in aerobic capacity of soil fauna. However, pesticide-dependent loss in population might be due to impairment of aerobic capacity of soil inhabiting animals in desert. [ABSTRACT FROM AUTHOR]
- Published
- 2005
37. Consumption of two Bt and six non-Bt corn varieties by the woodlouse Porcellio scaber.
- Author
-
Wandeler, Heiri, Bahylova, Jana, and Nentwig, Wolfgang
- Subjects
CORN varieties ,CORN as food ,NITROGEN ,PORCELLIONIDAE ,COOKING - Abstract
Summary: Studies of the degradation of transgenic Bacillus thuringiensis corn were limited to date, to a comparison between one Bt corn variety and its isogenic control line. Laboratory experiments using six non-transgenic and two transgenic Bt corn varieties were carried out to study the effect of Bt protein Cry1Ab and corn variety on the consumption of the decomposer Porcellio scaber (Latreille). The Cry1Ab toxin concentration in the Bt corn leaves was quantified at the beginning and at the end of the trial. Further, P. scaber and their faeces were analysed for presence of the Cry1Ab toxin after feeding on Bt corn using ELISA. During a feeding period of 20 days, P. scaber fed significantly less on the transgenic Bt corn (Bt+) than the control corn variety (Bt–). Comparing all eight corn varieties, the consumption depended significantly on the corn variety. The transgenic corn variety N4640Bt equalled the poorly consumed corn varieties; the second transgenic variety, Max88, which contained much less of the Cry1Ab protein, was one of the most consumed varieties. No differences in the nitrogen content but varying energy content were detected across the eight corn varieties. Neither the nitrogen, nor the energy content showed a significant correlation to the consumption rate. The Cry1Ab toxin concentration decreased in both Bt corn varieties during the time period of 20 days, but only significantly in one variety. The Cry1Ab protein could be detected in both the body of P. scaber and its faeces, showing that P. scaber ingested and excreted the Cry1Ab protein only to some extent. These results suggest that corn varieties, including conventional ones, differ with respect to degradation. Therefore, it is difficult to draw conclusions about the effective consequences from just one isogene test system. This study also supports earlier reports on the slow degradation of Bt corn. Bisherige Studien über den Abbau von transgenem Bacillus thuringiensis Mais beruhen auf dem Vergleich einer Bt-Maissorte mit ihrer isogenen Kontrolllinie. In Laborexperimenten mit sechs nicht-transgenen und zwei transgenen Bt-Maissorten wurde der Effekt des Bt-Protein Cry1Ab sowie ein möglicher Sorteneffekt auf die Konsumption des Destruenten Porcellio scaber untersucht. Die Konzentration von Cry1Ab in den Bt-Maisblättern wurde am Anfang und am Ende des Experimentes gemessen, außerdem wurde P. scaber sowie der Kot untersucht. Während einer Versuchsdauer von 20 Tagen fraßP. scaber signifikant weniger von Bt-Mais (Bt+) als von dessen Kontrolllinie (Bt–). Über alle acht Maissorten gesehen hatte der Faktor Sorte auf die Konsumption einen signifikanten Einfluss. Die hoch exprimierende transgene Maissorte N4640Bt wurde im Vergleich wenig gefressen, die niedrig exprimierende transgene Maissorte Max88 hingegen war eine der am meisten konsumierten Maissorten. Der Stickstoffgehalt der acht Sorten unterschied sich nicht, im Energiegehalt gab es jedoch signifikante Unterschiede. Es konnte keine Signifikanz zwischen der Konsumption und dem Stickstoffgehalt, respektive der Konsumption und dem Energiegehalt gefunden werden. Die Cry1Ab Konzentration nahm während des Experimentes in beiden Bt-Maissorten ab, die Abnahme war jedoch nur in einer Sorte signifikant. Das Cry1Ab Protein konnte sowohl im Körper wie auch im Kot nachgewiesen werden. Diese Resultate zeigen, dass Unterschiede im Abbau von verschiedenen Maissorten existieren, sowohl zwischen transgenen und konventionellen Sorten. Der Vergleich von mehreren Sorten erlaubt bessere Aussagen über die Relevanz der erhaltenen Unterschiede als wenn die Resultate nur auf einem isogenen System basieren. Diese Studie stützt bereits früher gemachte Aussagen, dass Bt-Mais einen langsamen Abbau aufweist. [Copyright &y& Elsevier]
- Published
- 2002
- Full Text
- View/download PDF
38. The first record of a terrestrial crustacean, Porcellio scaber (Isopoda, Porcellionidae), from sub-Antarctic Marion Island.
- Author
-
Slabber, S. and Chown, S.L.
- Subjects
ISOPODA ,MALACOSTRACA ,PORCELLIO ,PORCELLIONIDAE ,ANIMAL feeding ,PREDATORY animals - Abstract
Here we present the first record of Porcellio scaber Latreille, 1804 (Isopoda, Porcellionidae) from sub-Antarctic Marion Island. Because surveys for new species introductions are undertaken on a regular basis (at least annually) on the island, it seems likely that the species arrived in April 2001. The present distribution of P. scaber at the station suggests that it probably arrived with building supplies from Cape Town, although it may have been introduced from Gough Island from where it is also known. The species feeds on detritus as it does elsewhere, and appears to be reproductively most active over the summer months from October until March. The introduced house mouse and indigenous lesser sheathbill, the main vertebrate predators of invertebrates at the island, would not take individuals of P. scaber. The introduction of this highly successful invasive species at Marion Island highlights the ongoing conflict between use and conservation on the Southern Ocean islands. [ABSTRACT FROM AUTHOR]
- Published
- 2002
- Full Text
- View/download PDF
39. Breeding and population dynamic of Porcellionides sexfasciatus (Crustacea, Isopoda, Oniscidea).
- Author
-
Achouri, Mohamed Sghaïer and Charfi-Cheikhrouha, Faouzia
- Subjects
- *
PORCELLIONIDAE , *FOSSIL crustaceans - Abstract
The biology and the population dynamics of Porcellionides sexfasciatus Budde–Lund (1879) were studied on a field and carried out at Garat Naˆam (Kasserine, Tunisia) from July 1996 to June 1998. The reproduction exhibited a seasonal pattern extending from February/March to October/November. The juveniles appeared in the population from April to November. Size frequency distributions were analysed and 14 cohorts were recognised during the sampling period. Six cohorts were identified at the first sampling and eight new ones on the other samplings. Among these latter cohorts, three were tracked till they disappeared. Minimum average length of new cohorts ranged from 3.07 ± 0.35 mm to 3.47 ± 0.2 mm. Maximum average length of cohorts was 10.42 mm. P. sexfasciatus is a semi-annual species (females producing two or three broods per year), with iteroparous and amphogenes females (females reproducing twice or more in their life and producing both males and females), and bivoltine life cycle (two generations per year). The females are able to produce two broods, in the laboratory, without new mating. Fecundity and fertility, corresponding to the number of eggs or embryos per brood, appeared positively correlated with females’ size. Although oscillating throughout the year, the sex ratio was often in equilibrium. [Copyright &y& Elsevier]
- Published
- 2002
- Full Text
- View/download PDF
40. Wolbachia diversity in thePorcellionides pruinosus complex of species (Crustacea: Oniscidea): evidence for host-dependent patterns of infection.
- Author
-
Michel-Salzat, Alice, Cordaux, Richard, and Bouchon, Didier
- Subjects
- *
PORCELLIONIDAE , *BIODIVERSITY - Abstract
Porcellionides pruinosus is a cosmopolitan woodlouse. It is known to exhibit patterns of geographical variation between populations, and has been suspected to consist of several very closely related species. This species was found to carry Wolbachia endosymbionts, alpha-proteobacteria which are known to modify the reproduction of their crustacean hosts by inducing cytoplasmic incompatibility or feminization. In the P. pruinosus complex, Wolbachia induced feminization, but two different patterns of infection were reported: high prevalence and presence of infected males, or low prevalence and absence of infected males. In this study we investigated nine populations described as Porcellionides pruinosus carrying different Wolbachia strains, with the aim of investigating the possibility of coevolution between symbionts and hosts. Molecular analyses were carried out on both Wolbachia DNA (wsp gene) and host mitochondrial DNA (mt LSU rDNA). We show that (1) the nine host populations exhibited a high genetic differentiation so that they have to be split into two sibling species; (2) three different Wolbachia strains were found in the host complex but were not species-specific; and (3) the pattern of infection by Wolbachia was more host-dependent than symbiont-dependent. [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
41. EÉTUDE MORPHOLOGIQUE ET REÉPARTITION GEÉOGRAPHIQUE DE PORCELLIONIDES SEXFASCIATUS (BUDDE-LUND, 1885) EN TUNISIE (ISOPODA, ONISCIDAE).
- Author
-
Achouri, Mohamed Sghaier and Charfi-Cheikhrouha, Faouzia
- Subjects
- *
PORCELLIONIDAE , *ISOPODA - Abstract
Presents of a study that dealt with the morphological description and geographical distribution of Porcellionides sexfasciatus in Tunisia. Description of the specimens from Garat Nâam in the Kasserine area; Delimitation of the distribution of the species; Background on the species' biology and ecology.
- Published
- 2001
- Full Text
- View/download PDF
42. Synopsis of terrestrial isopods (Crustacea: Isopoda: Oniscidea) from Brazilian cavesı with emphasis on new records from northı midwestı northeast and southeast regions
- Author
-
Camile Sorbo Fernandes, Ivanklin Soares Campos-Filho, Paula Beatriz Araujo, and Bichuette, Maria Elina
- Subjects
Trichoniscidae ,Bathytropidae ,Arthropoda ,Scleropactidae ,Pudeoniscidae ,Biodiversity ,Platyarthridae ,Styloniscidae ,Porcellionidae ,Animalia ,Armadillidae ,Philosciidae ,Malacostraca ,Dubioniscidae ,Taxonomy ,Isopoda - Abstract
Camile Sorbo Fernandes, Ivanklin Soares Campos-Filho, Paula Beatriz Araujo, Bichuette, Maria Elina (2019): Synopsis of terrestrial isopods (Crustacea: Isopoda: Oniscidea) from Brazilian cavesı with emphasis on new records from northı midwestı northeast and southeast regions. Journal of Natural History 53 (17): 1095-1129, DOI: 10.1080/00222933.2019.1634225
- Published
- 2019
43. Papel de derivados fenólicos foliares no comportamento alimentar de Porcellio scaber (Isopoda: Oniscidea)
- Author
-
Mariani, Rosana Aparecida Arenhardt and Soares, Geraldo Luiz Gonçalves
- Subjects
Porcellionidae ,Detritívoros ,Isopodos terrestres ,Decomposição foliar ,Leaf decomposition ,Carya illinoinensis ,Derivados foliares fenólicos ,Terrestrial isopods - Abstract
Os derivados fenólicos desempenham importante papel na defesa contra hebivoria e também podem influenciar o comportamento dos organismos decompositores. O objetivo principal do presente trabalho foi verificar a influência da variação do teor de fenólicos totais e flavonoides totais presentes em diferentes estágios de decomposição foliar de Carya illinoinensis (nogueira pecan) no comportamento alimentar (taxas de consumo, de assimilação e egestão) de Porcellio scaber (Isopoda: Oniscidea). Investigou-se também a influência isolada (alimento artificial) de dois flavonoides, rutina (3-orutinosilquercetina) e quercetina, no comportamento alimentar deste isópodo. Folhas verdes de C. illinoinensis foram submetidas ao processo de decomposição em litter bags em condições ambientais por até três meses. Folhas verdes, folhas com um, dois, e três meses de decomposição (tratamentos) foram oferecidas aos isópodos em experimento sem escolha. Foram quantificados os teores de derivados fenólicos totais e de flavonoides totais nas folhas de cada período avaliado. Discos de gel de agarose com rutina e quercetina (dieta artificial) em diferentes concentrações (0,0; 0,5; 1,0 e 2,0 mg/ml) também foram usados como tratamentos em experimentos de comportamento alimentar com P. scaber. A taxa de consumo não diferiu estatisticamente entre os estágios de decomposição de folhas de C. illinoinensis (H = 6.3059, P = 0.0976). A taxa de egestão não diferiu significativamente (H = 6,6857, P = 0,0826). A taxa de assimilação das folhas de três meses diferiu das folhas verdes e das folhas com um mês de decomposição, mas não diferiu das folhas com dois meses de decomposição. O teor de derivados fenólicos totais e flavonoides totais diferiram significativamente entre todos os estágios avaliados (H = 9,6525, P = 0.0218 e H = 10.3846, P = 0.0156, respectivamente). Folhas verdes tiveram o maior teor de fen Folhas verdes tiveram o maior teor de fenólicos totais (185,441 ± 0.58 mg equivalentes de ácido gálico/g de folha seca) e flavonoides totais (209,057 ± 2,97 mg equivalentes de rutina/g de folha seca). Nos experimentos com gel de agarose, rutina e quercetina mostraram toxidez considerável apenas na maior concentração utilizada (2,0 mg/ml), além de altas taxas de mortalidade para a concentração 2,0 mg/ml, mas a quercetina se mostrou mais tóxica. Não foi possível identificar uma concentração ótima que estimulasse o comportamento alimentar de P. scaber. O comportamento alimentar de P. scaber não foi inibido pela presença de alto teor de fenólicos totais e flavonoides totais presentes nas folhas de C. illinoinensis. Phenolic derivatives play an important role in defense against herbivory and can also influence the behavior of decomposing organisms. The aims of the study were to verify the influence of total phenolic content and total flavonoid content presents in different stages of leaf decomposition of Carya illinoinensis (hickory) in feeding behavior (consumption, assimilation and egestion rates) of Porcellio scaber (Isopoda: Oniscidea). In was also investigated the isolated influence (artificial diet) of two flavonoids, rutin (3-orutinosylquercetin) and quercetin, on the feeding behavior of this isopod. Green leaves of C. illinoinensis were submitted to the decomposition process in litter bags under environmental conditions for up to three months. Green leaves, leaves with one, two, and three months of decomposition (treatments) were offered to the isopods in no choice experiment. The amount of total phenolic content and total flavonoid content in leaves were evaluated in each decomposition stage. Agarose gel disks with rutin and quercetin (artificial diet) at different concentrations (0.0, 0.5, 1.0 and 2.0 mg / ml) were also used as treatments in P. scaber feeding behavior experiments. No statistical differences were found to egestion rates (H = 6.6857, P = 0.0826). The assimilation rate of three month old leaves differed from of green leaves and one month old leaves, but not from that of two month old leaves (H = 18.2856, P = 0.0004). The total phenolic content and total flavonoid content differed significantly among all evaluated decomposition stages (H = 9.6525, P = 0.0218 and H = 10.3846, P = 0.0156, respectively). Green leaves had the highest value of total phenolic content (185.441 ± 0.58 mg equivalent of gallic acid /mg dry weight) and total flavonoid content (209.057 ± 2.97 mg of rutin equivalents/g dry weight). In the experiments with artificial diet, rutin and quercetin shows toxicity only in high doses and In the experiments with artificial diet, rutin and quercetin shows toxicity only in high doses and induced the highest mortality rates at the concentration of 2.0 mg / ml. The high amount of total phenolic content and total flavonoid content mainly in leaves of C. illinoinensis don’t repelled P. scaber. In the experiments with artificial diet, rutin and quercetin showed considerable toxicity only at the highest concentration used (2.0 mg/ml) and induced high mortality rates at 2.0 mg / ml, but quercetin showed a greater toxic potential than its glycosylated derivative. It was not possible to identify an optimum concentration that stimulated the feeding behavior of P. scaber. The feeding behavior of P. scaber was not inhibited by high total phenolic and total flavonoid contents in the C. illinoinensis leaves.
- Published
- 2019
44. Una nueva especie de Porcellio Latreille, 1804 (Crustacea: Isopoda: Oniscidea) de España y primeros datos sobre los isópodos terrestres de Extremadura
- Author
-
Emmanuel Séchet, Lluc Garcia, and Daniel Parejo-Pulido
- Subjects
Porcellio ,biology ,Fauna ,Integumentary system ,Zoology ,Oniscidea ,Península Ibérica ,nueva especie ,biology.organism_classification ,Crustacean ,nuevos registros ,QL1-991 ,Porcellionidae ,Extremadura ,Genus ,Animal Science and Zoology ,Ecology, Evolution, Behavior and Systematics - Abstract
Porcellio wadianae sp. nov. (Crustacea: Oniscidea: Porcellionidae) is described from the Extremadura region, Spain, Iberian Peninsula. The new species can be classified within the so-called “Porcellio Atlantic group”, deffined by Vandel. It is characterized by having an integumentary glandular system uncommon within this genus and by other characteristics that differentiate it from the other species of the same group present in the Ibero-Macaronesian and Northern African region. In addition, we report additional observations on woodlice species collected in Extremadura, one of Spain’s most poorly known regions concerning terrestrial Isopod fauna. urn:lsid:zoobank.org:pub:643C01B5-0260-4B5E-ABDA-16B3E162B7F9
- Published
- 2021
45. Effects of terrestrial isopods on soil nutrients during litter decomposition
- Author
-
Mingan Shao, Tongchuan Li, and Xi Yang
- Subjects
biology ,Chemistry ,Soil biology ,Soil Science ,Catalpa bungei ,04 agricultural and veterinary sciences ,010501 environmental sciences ,biology.organism_classification ,01 natural sciences ,Nutrient ,Porcellionidae ,Environmental chemistry ,040103 agronomy & agriculture ,Litter ,0401 agriculture, forestry, and fisheries ,Armadillidiidae ,Soil horizon ,Microcosm ,0105 earth and related environmental sciences - Abstract
Soil fauna are important biological factors that affect litter decomposition and play an important role in the release of nutrients, such as carbon and nitrogen. This study focused on the role of soil fauna in litter decomposition. Field microcosm experiments were conducted to assess the influence of isopods (Porcellionidae and Armadillidiidae) on soil nutrients during the litter decomposition of Catalpa bungei (CL), Platanus acerifolia (PL), and Aesculus chinensis (AL). The litter mass loss and nutrients in different soil layers treated with various isopods were determined in three-month microcosm incubations. Results showed that the presence of isopods significantly increased (P
- Published
- 2020
46. The role of zine regulation in the zinc tolerance mechanism of the terrestrial isopod Porcellio scaber.
- Author
-
Donker, Marianne H., Raedecker, Monique H., and Van Straalen, Nico M.
- Subjects
- *
ISOPODA , *PORCELLIO scaber , *PORCELLIO , *ZINC , *ZINC compounds , *PORCELLIONIDAE - Abstract
Explains mechanisms underlying adaptation to materials in the terrestrial isopod, Porcellio scaber responses to zinc by comparing field animals and laboratory-reared populations. Amount of zinc contamination in which the isopods refused to eat; Reduction of food assimilation by zinc in laboratory-reared generations.
- Published
- 1996
- Full Text
- View/download PDF
47. Porcellio Latreille 1804
- Author
-
Kashani, Ghasem M., Ahdiyeh, Abedini, and Zahra, Hatami
- Subjects
Porcellio ,Arthropoda ,Porcellionidae ,Animalia ,Biodiversity ,Malacostraca ,Taxonomy ,Isopoda - Abstract
Genus Porcellio Latreille, 1804 Type species: Porcellio scaber Latreille, 1804 Diagnosis. A member of the genus Porcellio can be diagnosed by the enlarged pleon-epimera constituting continuous outline with the pereon; pereon-epimera I with cocave posterolateral margins; head with welldeveloped lateral lobes; eyes with more than 20 ommatidia; telson triangular with concave lateral margins; pleopod exopodites I���II with monospiracular covered lungs and no conglobation ability (Schmalfuss & Ferrara 1978, Schmalfuss 1992). Remarks. The genus Porcellio is a large taxonomic group that cannot be defined by a single character. Indeed, none of the above mentioned features satisfactorily diagnose the genus (Schmalfuss 1992). Schmalfuss (1998) considered Porcellio as a paraphyletic group including two different linages that have been united due to convergent evolution. According to him, ���the north African laevis-hoffmannseggi -group defined by elongated male pleopod exopodites, probably should be considered a separate genus which then must be called Rogopus Budde- Lund, 1908���. The northern Mediterranean scaber-obsolotus -group is diagnosed by short pleopod exopodites that includes also west Asian species (Schmalfuss 1992). Obviously, a revision of the genus Porcellio is required to be divided to more natural genera., Published as part of Kashani, Ghasem M., Ahdiyeh, Abedini & Zahra, Hatami, 2017, Terrestrial isopods of the genus Porcellio Latreille, 1804 (Isopoda; Oniscidea) in Iran, with a description of a new species, pp. 129-136 in Zootaxa 4311 (1) on page 130, DOI: 10.11646/zootaxa.4311.1.9, http://zenodo.org/record/847407, {"references":["Schmalfuss, H. & Ferrara, F. (1978) Terrestrial isopods from West Africa, Part 2: Families Tylidae, Ligiidae, Trichoniscidae, Styloniscidae, Rhyscotidae, Halophilosciidae, Philosciidae, Platyarthridae, Rhyscotidae, Trachelipidae, Porcellionidae, Armadillidiidae. Monitore zoologico italiano, Nuova Serie, Supplemento, 11, 15 - 97.","Schmalfuss, H. (1992) The terrestrial isopod genus Porcellio in western Asia (Oniscidea: Porcellionidae). Stuttgarter Beitrage zur Naturkunde, Serie A, 475, 1 - 45.","Schmalfuss, H. (1998) The terrestrial isopod fauna of the central Near East countries: Composition and biogeography. Israel Journal of Zoology, 44, 263 - 271."]}
- Published
- 2017
- Full Text
- View/download PDF
48. Porcellio mehrdadi Kashani & Ahdiyeh & Zahra 2017, sp. nov
- Author
-
Kashani, Ghasem M., Ahdiyeh, Abedini, and Zahra, Hatami
- Subjects
Porcellio ,Arthropoda ,Porcellio mehrdadi ,Porcellionidae ,Animalia ,Biodiversity ,Malacostraca ,Taxonomy ,Isopoda - Abstract
Porcellio mehrdadi sp. nov. Material examined. Holotype: male, 20 mm, Lordegan, 5 km to Atashgah fall, by the Khersan River, under the bark of a rotten tree, 21°16.4'N, 50°58.3'E, elev. 1460 m, 15 July 2015, leg. G.M. Kashani, A. Abedini & Z. Hatami (ZUTC 6498). Paratypes. same data as holotype, one male and two females (ZUTC 6499); same data as holotype, one male and one female (IRIPP Iso-1065); same data as holotype, one male and four females (PCGMK 2164); [1] Sarkhoon, 31°44.9'N, 50°32.8'E, 18 June 2016, leg. the authors, six males and eleven females (PCGMK 2323); [2] Sarkhoon to Lordegan, 31°40.3'N, 50°44.4'E, 18 June 2016, leg. the authors, one male and one female (PCGMK 2325); [4] Lordegan to Atashgah fall, 31°20.0'N, 50°54.7'E, 19 June 2016, leg. the authors, three males and two females (PCGMK 2333); [5] Lordegan to Atashgah fall, by the Khersan river, 31°16.8'N, 50°58.0'E, 19 June 2016, leg. the authors, two males and three females (PCGMK 2336); [6] Lordegan to Atashgah fall, by the Khersan river, 31°16.0'N, 50°58.4'E, 19 June 2016,leg. the authors, seven males and two females (PCGMK 2340); [3] Monj, 31°32.4'N, 50°58.0'E, 19 June 2016,leg. the authors, one male and one female (PCGMK 2343); [7] Dehdasht, Pirzal, 1 may 2002, leg. M. Rezaei, two males and twelve females (PCGMK 1273). Diagnosis. Cephalon with well developed quadrangular lateral lobes; male uropod exopodites elongated and pereopod VII ischium with setose areas on rostral surface and ventral margin. Description. Body flattened; length up to 20 mm in both males and females. Color pale brown to dark gray with usual muscles spots (Fig 2A –C). Head with well developed quadrangular lateral lobes; median lobe with incision in middle; vertex granulated with several pointed tubercles (Fig. 3 A). Antenna long and slender, surpassing posterior margin of pereon-tergite II; fifth article of peduncle longer than flagellum, with length: width ratio 10:1; flagellum with two articles, proximal one three times as long as distal one (Fig. 3 B). Pereon granulated with conspicuous pointed tubercles. Pereonite I with concave posterolateral margin (Fig. 3 A). Pereopod I ischium triangular, carpus with depression on rostral surface equipped with slender scales (Fig. 3 D). Pleon with continuous outline with pereon, granulated with tubercles (Fig. 3 E). Telson triangular, with concave sides and acute apex, not surpassing uropod-protopodites. Uropod exopodites as long as telson in females, up to three times as long as telson in males (Fig. 3 C). Pleopod exopodites I–II with monospiracular internal lungs (Fig. 4 B–C). Male: Pereopods I–II merus and carpus with brushes of setae. Pereopod VII ischium with concave ventral margin equipped with hairy brush of small setae, rostral surface with setose area (Fig. 3 E). Pleopod endopodite I straight, apex with line of short setae (Fig. 4 A); exopodite I with short rounded hind lobe, outer margin with row of small setae (Fig. 4 B). Pleopod endopodite II as long as exopodite; exopodite triangular with line of seta on outer margin (Fig. 4 C). Pleopod exopodites III–IV with concave outer margins (Fig. 4 D–E) bearing line of small setae. Pleopod exopodite V triangular with line of seta on outer margin (Fig. 4 F). Remarks. Porcellio mehrdadi sp. nov. is characterized by the well developed quadrangular lateral lobes of the head; male pereopod VII ischium with the setose areas on rostral surface and ventral margin, and elongated uropod exopodites. Schmalfuss (1992) revised the western Asian species of Porcellio in which P. evansi and P. obsoletus were reported from Iran. Geographically, the new species is distributed within the distributional range of P. evansi and it was found even syntopically with the latter species in one locality. The two species, however, differ in their coloration, in the shape of the head and telson and in possessing the setose areas on pereopod VII ischium. Etymology. The species is named after Mehrdad Rezaei who collected the species for the first time. Distribution. Southwestern Iran.
- Published
- 2017
- Full Text
- View/download PDF
49. Porcellio obsoletus Budde-Lund 1885
- Author
-
Kashani, Ghasem M., Ahdiyeh, Abedini, and Zahra, Hatami
- Subjects
Porcellio ,Arthropoda ,Porcellionidae ,Animalia ,Biodiversity ,Malacostraca ,Porcellio obsoletus ,Taxonomy ,Isopoda - Abstract
Porcellio obsoletus Budde-Lund, 1885 Material examined. Mazandaran, Pool to Kojoor, 27 July 2014, leg. G.M. Kashani, one male (PCGMK 1938). Remarks. Schmalfuss (1986) reported P. obsoletus from one locality in northern Iran (Fig. 1) and later (Schmalfuss 1992) suggested the separation of Iranian population from the main distribution area of the species has been occurred by the ecological barriers (steppe) or climate factors (e. g. temperature). In the present study, this species was found in just one locality (Fig. 1) indicating presumably the restricted distribution of the species in northern Iran. Distribution. Central Italy; Yugoslavia; Greece; southwestern Turkey; Cyprus; Lebanon; northern Syria; Crimea; northern Iran., Published as part of Kashani, Ghasem M., Ahdiyeh, Abedini & Zahra, Hatami, 2017, Terrestrial isopods of the genus Porcellio Latreille, 1804 (Isopoda; Oniscidea) in Iran, with a description of a new species, pp. 129-136 in Zootaxa 4311 (1) on page 133, DOI: 10.11646/zootaxa.4311.1.9, http://zenodo.org/record/847407, {"references":["Budde-Lund, G. (1885) Crustacea Isopoda terrestria per familias et genera et species descripta. Sumtibus Auctoris, Copenhagen, 319 pp. https: // doi. org / 10.5962 / bhl. title. 109769","Schmalfuss H (1986) Landasseln aus Nord-Iran (Crustacea: Isopoda: Oniscidea). Senckenbergiana Biologica, 66, 377 - 397.","Schmalfuss, H. (1992) The terrestrial isopod genus Porcellio in western Asia (Oniscidea: Porcellionidae). Stuttgarter Beitrage zur Naturkunde, Serie A, 475, 1 - 45."]}
- Published
- 2017
- Full Text
- View/download PDF
50. Porcellio evansi Omer-Cooper 1923
- Author
-
Kashani, Ghasem M., Ahdiyeh, Abedini, and Zahra, Hatami
- Subjects
Porcellio ,Arthropoda ,Porcellionidae ,Animalia ,Biodiversity ,Malacostraca ,Porcellio evansi ,Taxonomy ,Isopoda - Abstract
Porcellio evansi Omer-Cooper, 1923 Porcellio rubidus Budde-Lund, 1885 Material examined. [53] Shiraz, 29��38.8'N, 52��34.2'E, 10 February 2008, leg. G.M. Kashani, one male and two females (PCGMK 1153); [54] Shiraz, by the Maharloo Lake, 29��26.8'N, 52��43.7'E, 11 February 2008, leg. G.M. Kashani, five males and three females (PCGMK 1154); [55] Shiraz, Zahed���Shahr, Gribaygan District, 28��35.9'N, 53��55.5'E, 12 February 2008, leg. G.M. Kashani, one male and one female (PCGMK 1155); [15] Qom, 16 October 2006, leg. G.M. Kashani, one male and three females (PCGMK 1119); [1] Piranshahr, 11 December 2007, leg. A. Mohammadyari, three males and two females (PCGMK 1157); [59] Minab, 27��19.3'N, 57��00.3'E, 25 Janyary 2007, leg. H. Salehi, one male and five females (PCGMK 1172); [11] Eslamabad���Gharb, Mahidasht, 34��02.6'N, 46��26.7'E, 30 May 2008, leg. G.M. Kashani, three males (PCGMK 1191); [10] Gilan ��� Gharb, 34��09.5'N, 45��53.7'E, 30 May 2008, leg. G.M. Kashani, three females (PCGMK 1192); [58] Bandarabbas, Kesharbala to Anguran, 27��15.0'N, 55��51.4'E, 25 February 2008, leg. unknown, one male and twenty females (PCGMK 1212); [31] Dezful to Andimeshk, by the Balarood river, 32��35.3'N, 48��17.2'E, 3 March 2008, leg. H. Salehi, M. Ghanbari & A. Kazemi, two females (PCGMK 1215); [52] Kazeroon to Konar���Takhteh, Bonaf village, 29��34.8'N, 51��30.4'E, 16 May 2008, leg. G.M. Kashani, two males and two females (PCGMK 1223); [49] Ahram, Khoon village, 28��54.4'N, 51��31.9'E, 17 May 2008, leg. G.M. Kashani, det. H. Schmalfuss, two females (PCGMK 1225); [56] Khonj, 27��50.9'N, 53��26.3'E, 18 May 2008, leg. G.M. Kashani, nine males and eighteen females (PCGMK 1230); [17] Kashan, Abyaneh village, 9 October 2008, leg. O. Mirshamsi, one male and two females (PCGMK 1322); [42] Lordegan, Atashgah fall, 31��14.4'N, 51��00.0'E, 5 June 2008, leg. H. Salehi, one male and four females (PCGMK 1323); [7] Sanandaj to Kamyaran, 35��10.2'N, 46��55.7'E, 30 September 2008, leg. G.M. Kashani, eight males and ten females (PCGMK 1336); [9] Kamyaran, Palangan village, by the Sirvan River, 35��05.2'N, 46��37.9'E, 30 September 2008, leg. G.M. Kashani, nine males and five females (PCGMK 1339); [8] Marivan, by the Zarivar lake, 35��32.0'N, 46��08.8'E, 1 October 2008, leg. G.M. Kashani, two males and five females (PCGMK 1342); [5] Baneh, 36��01.2'N, 45��50.2'E, 2 October 2008, leg. G.M. Kashani, one male (PCGMK 1351); [4] Baneh to Sardasht, 36��02.4'N, 45��45.8'E, 2 October 2008, leg. G.M. Kashani, one male and two females (PCGMK 1355); [72] Chabahar, 4 December 2008, leg. H. Salehi, two males and one female (PCGMK 1386); [23] Khorram���Abad, Zagheh, 33��29.0'N, 48��27.8'E, 12 November 2008, leg. G.M. Kashani, three males and four females (PCGMK 1388); [24] Poledokhtar, 33��07.0'N, 47��43.4'E, 12 November 2008, leg. G.M. Kashani, twenty one males and thirty four females (PCGMK 1392); [25] Poledokhtar to Andimeshk, Chamgerdab village, 32��56.2'N, 47��52.4'E, 12 November 2008, leg. G.M. Kashani, one male and five females (PCGMK 1396); [30] Andimeshk, 32��24.5'N, 48��08.8'E, 12 November 2008, leg. G.M. Kashani, one male and two females (PCGMK 1397); [29] Dehloran to Abdanan, 32��40.7'N, 47��28.4'E, 13 November 2008, leg. G.M. Kashani, three males and one female (PCGMK 1400); [27] Abdanan to Darre���Shahr, 33��05.7'N, 47��20.0'E, 13 November 2008, leg. G.M. Kashani, six females (PCGMK 1401); [28] Darre���Shahr to Poldokhtar, 33��07.4'N, 47��35.9'E, 13 November 2008, leg. G.M. Kashani, four males and one female (PCGMK 1404); [64] Ardakan, 32��20.4'N, 53��56.3'E, 8 December 2008, leg. G.M. Kashani, one male (PCGMK 1408); [61] Jiroft, 28��39.8'N, 57��45.8'E, 11 December 2008, leg. G.M. Kashani, four males and twenty four females (PCGMK 1415); [60] Zehkloot, 27��47.9'N, 58��34.0'E, 27 February 2009, leg. G.M. Kashani, one male and one female (PCGMK 1458); [66] Iranshahr to Sarbaz, 26��42.9'N, 61��06.5'E, 27 February 2009, leg. G.M. Kashani, one male and three females (PCGMK 1462); [65] Rask, 26��14.7'N, 61��23.57'E, 28 February 2009, leg. G.M. Kashani, det. H. Schmalfuss, one female (PCGMK 1463); [68] Sarbaz to Khash, Paskooh, 27��33.5'N, 61��38.4'E, 28 February 2009, leg. G.M. Kashani, seven males and twenty one females (PCGMK 1472); [69] Sarbaz to Khash, Pirsez village, 27��40.5'N, 61��20.4'E, 28 February 2009, leg. G.M. Kashani, one male and six females (PCGMK 1481); [70] Khash to Sangan, Chehzar village, 28��23.7'N, 61��11.7'E, 1 March 2009, leg. G.M. Kashani, two males and two females (PCGMK 1486); [71] Mirjaveh, 28��40.7'N, 61��14.7'E, 1 March 2009, leg. G.M. Kashani, five females (PCGMK 1489); [67] Iranshahr, 27��12.6'N, 60��41.7'E, 1 March 2009, leg. G.M. Kashani, three males and five females (PCGMK 1499); [62] Bam to Kerman, Abaragh village, 29��20.5'N, 57��56.5'E, 3 March 2009, leg. G.M. Kashani, one male and two females (PCGMK 1503); [63] Bam to Kerman, 10 km to Mahan, 29��59.0'N, 57��21.3'E, 3 March 2009, leg. G.M. Kashani, four males and four females (PCGMK 1505); [32] Shoush, 32��12.9'N, 48��11.4'E, 5 May 2009, leg. unknown, one male and one female (PCGMK 1570); [16] Qom, Langarood village, 2 April 2011, leg. G.M. Kashani, two males (PCGMK 1591); [57] Laar, Grash, 26 May 2012, leg. S. Hosseinie, one male and two females (PCGMK 1640); [6] Bijar, 10 April 2014, leg. G.M. Kashani, one female (PCGMK 1734); [2] Zanjan, Armaghankhaneh, Mari village, 36��59.9'N, 48��28.3'E, 12 May 2014, leg. G.M. Kashani, one male and four females (PCGMK 1759); [3] Zanjan, 23 September 2014, leg. S. Mohammadi, one male (PCGMK 1791); [26] Ilam, 27 March 2015, leg. M. Larti, three females (PCGMK 2075); [35] Ramhormoz, 23 March 2015, leg. M. Larti, one male and one female (PCGMK 2077); [22] Khorram��� Abad, Sarabe���Chegini, 5 July 2015, leg. G.M. Kashani, three males and one female (PCGMK 2091); [18] Arak, Khomein, 8 July 2015, leg. G.M. Kashani, two males and three females (PCGMK 2094); [36] Shahre���Kord, 3 Km to Horeh, 32��34.9'N, 50��49.3'E, 12 July 2015, leg. the authors, one female (PCGMK 2113); [38] Farsan to Chelgerd, Babaheydar village, 32��20.2'N, 50��27.0'E, 12 July 2015, leg. the authors, one female (PCGMK 2128); [37] Chelgerd to Samsami, 32��12.2'N, 50��16.8'E, 13 July 2015, leg. the authors, three males, two females and two juv. (PCGMK 2137); [39] Ardal to Jonaghan, 32��04.6'N, 50��39.9'E, 14 July 2015, leg. the authors, nine males and five females (PCGMK 2140); [46] Sisakht, Bayareh village, 30��50.2'N, 51��57.8'E, 16 July 2015, leg. the authors, one male and one female (PCGMK 2168); [47] Yasouj, Tolkhosrow to Perikdon, 30��35.0'N, 51��33.5'E, 16 July 2015, leg. the authors, one male (PCGMK 2173); [45] Choram, Dah���Mahalleh village, 30��46.1'N, 50��37.9'E, 17 July 2015, leg. the authors, three females (PCGMK 2186); [44] Dehdasht, Sough, by the Maroon river, 30��56.8'N, 50��25.5'E, 17 July 2015, leg. the authors, six males and twelve females (PCGMK 2192); [48] Gachsaran, 5 km to Babakalan, 30��13.8'N, 50��46.0'E, 18 July 2015, leg. the authors, five males and five females (PCGMK 2198); [51] Basht to Masiri, 2 km to Kopen, by the Shiv river, 30��19.5'N, 51��15.1'E, 19 July 2015, leg. the authors, six males and ten females (PCGMK 2204); [50] Masiri to Yasouj, 45 km to Yasouj, 30��28.4'N, 51��29.8'E, 19 July 2015, leg. the authors, two males and five females (PCGMK 2209); [40] Naghan to Sarkhoon, Dehno village, 31��54.5'N, 50��42.3'E, 18 June 2016, leg. the authors, two females (PCGMK 2317); [41] Sarkhoon to Lordegan, 31��40.3'N, 50��44.3'E, 18 June 2016, leg. the authors, one male and six females (PCGMK 2326); [33] Dehdez to Izeh, 22 km to Izeh, 31��49.0'N, 50��03.0'E, 19 June 2016, leg. the authors, four males and six females (PCGMK 2349); [34] Seydoon to Dishmook, Benshowar village, 31��18.5'N, 50��11.9'E, 19 June 2016, leg. the authors, one females (PCGMK 2355); [43] Qaleh Raisi, 31��09.9'N, 50��28.0'E, 20 June 2016, leg. the authors, four males and one female (PCGMK 2357); [73] Aghkand to Khalkhal, 37��25.2'N, 48��11.1'E, 25 July 2016, leg. G. M. Kashani, four males, four females and nine subadults (PCGMK 2390); [13] Hamedan to Malayer, Siahkamar village, 34��44.2'N, 48��44.8'E, 9 September 2016, leg. the authors, two males (PCGMK 2525); [19] 5 km N Boroujerd, 33��56.7'N, 48��40.6'E, 10 September 2016, leg. the authors, six males and five females (PCGMK 2534); [21] Aleshtar to Firouz Abad, 3 km to Firouz Abad, 33��54.0'N, 48��07.8'E, 10 September 2016, leg. the authors, one female (PCGMK 2546); [20] Barkhordar to Nahavand, Islam Abad village, 34��01.9'N, 48��14.1'E, 11 September 2016, leg. the authors, one male and one female (PCGMK 2552); [14] Firouzan, Chashmeh Mahi village, 34��20.1'N, 48��31.9'E, 12 September 2016, leg. the authors, five males and two females (PCGMK 2576); [12] Songhor to Ghorveh, Gerdakaneh Sofla village, 35��05.8'N, 47��33.7'E, 13 September 2016, leg. the authors, three males and three females (PCGMK 2586). Remarks. In his contribution to the species of the genus Porcellio in western Asia, Schmalfuss (1992) reported P. evansi from southern and western Iran. New records revealed that this species is broadly distributed in Iran (Fig. 1). The absence of this species in northern and eastern Iran seems to be due to the lack of proper habitats in these areas. Budde-Lund (1885) described Porcellio rubidus from Shiraz, Iran but that account remained the sole report for the species up to now. Schmalfuss (1992) identified the specimens from the same locality as P. evansi. All specimens collected from Shiraz and the adjacent districts in the present work were also identified as P. evansi demonstrating P. rubidus and P. evansi most probably belong to the same species. While the name evansi Omer-Cooper, 1923 has been widely used by the different authors (see bibliographies under P. evansi in Schmalfuss 2003), the name rubidus Budde-Lund, 1885 has never been used again after the original description. In accordance with the article 23. 9 of the International Code of Zoological Nomenclature, Porcellio rubidus is a senior synonym of P. evansi and should be deemed as nomen oblitum. Distribution. Southeastern Turkey; northern Syria; Iraq; Arabian Peninsula; Iran., Published as part of Kashani, Ghasem M., Ahdiyeh, Abedini & Zahra, Hatami, 2017, Terrestrial isopods of the genus Porcellio Latreille, 1804 (Isopoda; Oniscidea) in Iran, with a description of a new species, pp. 129-136 in Zootaxa 4311 (1) on pages 130-133, DOI: 10.11646/zootaxa.4311.1.9, http://zenodo.org/record/847407, {"references":["Budde-Lund, G. (1885) Crustacea Isopoda terrestria per familias et genera et species descripta. Sumtibus Auctoris, Copenhagen, 319 pp. https: // doi. org / 10.5962 / bhl. title. 109769","Schmalfuss, H. (1992) The terrestrial isopod genus Porcellio in western Asia (Oniscidea: Porcellionidae). Stuttgarter Beitrage zur Naturkunde, Serie A, 475, 1 - 45.","Schmalfuss, H. (2003) World catalog of terrestrial isopods (Isopoda: Oniscidea). Stuttgarter Beitrage zur Naturkunde, Serie A, 654, 1 - 341."]}
- Published
- 2017
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.