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4. Leaf-Litter Brood Chambers inDichotomius(Luederwaldtinia)Carbonarius(Mannerheim, 1829) (Coleoptera: Scarabaeidae): A Novel Behavior for Dung Beetles

Author

Dinghi, Pablo Adrián, Sánchez, María Victoria, Cantil, Liliana Fernanda, Sarzetti, Laura Cristina, and Genise, Jorge Fernando

Subjects
Scarabaeidae, Dichotomius, biology, Fumo-bravo, Thin layer, Zoología, Ornitología, Entomología, Etología, Plant litter, BALL-SHAPED PROVISIONS, biology.organism_classification, Brood, Ciencias Biológicas, Pupa, PLANT DETRITUS, Insect Science, DICHOTOMIINI, Botany, NESTING BEHAVIOR, CIENCIAS NATURALES Y EXACTAS
Abstract

Dichotomius (Luederwaldtinia) carbonarius (Mannerheim, 1829) provisions its brood chambers entirely with comminuted leaf litter, mostly of fumo bravo (Solanum granuloso-leprosum Dunal), and covers them with a thin layer of entire or large fragments of leaves. This is the first recorded case of brood chambers provisioned exclusively with leaf litter. The brood chamber is composed of a main spherical chamber and a cylindrical protuberance in the proximal pole. The egg chamber is located at the distal pole. These brood chambers show, to some extent, intermediate features between brood masses and brood balls. The pupation chamber is constructed without any pellet arrangement and differs from others described from South America and also from those preserved inside Patagonian fossil brood balls, suggesting that this branch of Dichotomius Hope including Luederwaldtinia Martínez could be a separate lineage. Fil: Dinghi, Pablo Adrián. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Grupo de Investigación En Filogeografía y Filogenias Moleculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Sánchez, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina Fil: Cantil, Liliana Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina Fil: Sarzetti, Laura Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina Fil: Genise, Jorge Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina

Published
2013

5. Jugando con Dragones: Una experiencia lúdica como introducción a los conceptos filogenéticos en la enseñanza de la biodiversidad.

Author

Dinghi, Pablo A., Guzmán, Noelia V., and Monti, Daniela S.

Subjects
*PHYLOGENY, *BIODIVERSITY, *THEORY of knowledge, *LEARNING, *SCIENTIFIC method
Abstract

The aim of the present paper is to introduce students to tree-thinking through a ludic activity. Phylogenetic trees are the appropriate way to explain biodiversity under the theoretical framework of current evolutionary hypothesis and they should take a central place in public understanding of evolution. Misinterpretation of phylogenies plus the unavailability of didactic material in Spanish for teachers ends up in the reproduction of misunderstandings on the evolutionary theory. The combination of these errors with epistemological problems of evolutionary theories learning generates even more confusion in these subjects. The ludic activity as a learning process provides powerful tools when it comes to acquiring concepts that require abstraction in contents. Educational natural science games, both classical and modern approaches as Game-based learning theory, provide a sense of achievement to players/apprentices and they improve knowledge acquisition. In this context, the activity proposed here invites students to think under the scientific method and it allows them to assimilate abstract concepts by the resolution of evolutionary riddles. This activity gives the concepts to introduce scholars to the study of evolutionary processes, and the diversity of life on Earth under the current educational paradigms. [ABSTRACT FROM AUTHOR]

Published
2020
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6. Reply to Luzzatto et al.(2014): 'Comment on 'Genetic evidence and new morphometric data as essential tools to identify the Patagonian seahorse Hippocampus patagonicus (Pisces, Syngnathidae), González et al. (2014)''

Author

González, Raul Alberto Candido, Dinghi, Pablo Adrián, Corio, Cristian Hernan, Medina, Alonso Ismael, Maggioni, Matías, Storero, Lorena Pia, and Gosztonyi, Atila Esteban

Subjects
Ciencias Biológicas, Redescription, Genetic, Morphometry, Otras Ciencias Biológicas, Hippocampus patagonicus, CIENCIAS NATURALES Y EXACTAS
Abstract

Luzzatto et al. (2014) criticize both methodological and other aspects of our work (González et al., 2014). Our paper is a redescription of the Patagonian seahorse Hippocampus patagonicus Piacentino & Luzzatto 2004, based on the combination of morphometric and genetic analyses, which definitively contributes to clarifying the taxonomic status of H. patagonicus and validates the species. After criticizing several methodological aspects of our work, the authors concluded that.The work presented by González et al. (2014) is based on misinterpretations of the original study they claim to be improving and no new considerations are provided about the taxonomic status of H. patagonicus. Below, we respond to these criticisms. The original description of H. patagonicus by Piacentino & Luzzatto (2004) presents conceptual and methodological deficiencies that indicate a redescription was necessary. Our study clearly identifies these gaps, related with the improper selection of diagnostic characters. Our study demonstrates that the morphometric measures used as diagnostic characters in the original description of H. patagonicus overlap with those reported by other authors for Hippocampus erectus Perry 1810 (Vari, 1982; Lourie et al., 1999 and see Table V in González et al., 2014), specifically: (1) the number of rays in the pectoral-fin, (2) the number of rings on the tail and (3) the proportion of the snout length with respect to the length of the head. González et al. (2014) also present strong evidence (as well as evidence from other authors) that other characters given in the original description are not appropriate for diagnosis of seahorses (i.e. size and shape of the spines, colour patterns and pigmentation). Fil: González, Raul Alberto Candido. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; Argentina Fil: Dinghi, Pablo Adrián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina Fil: Corio, Cristian Hernan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina Fil: Medina, Alonso Ismael. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina Fil: Maggioni, Matías. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; Argentina Fil: Storero, Lorena Pia. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina Fil: Gosztonyi, Atila Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina

Published
2014

7. The aestivation chamber of the giant earthworm Glossoscolex bergi (Glossoscolecidae) in the subtropical rainforest of Misiones (Argentina)

Author

Genise, Jorge Fernando, Cantil, Liliana Fernanda, Dinghi, Pablo Adrián, Sánchez, María Victoria, and Sarzetti, Laura Cristina

Subjects
Ciencias Biológicas, GLOSSOSCOLEX BERGI, EARTHWORM, PALAEOENVIRONMENTAL INDICATOR, SUBTROPICAL RAINFOREST, CASTRICHNUS INCOLUMIS, Zoología, Ornitología, Entomología, Etología, CIENCIAS NATURALES Y EXACTAS
Abstract

Glossoscolex bergi (Glossoscolecidae) is a giant earthworm from the rainforest of Misiones (Argentina). The large size of its aestivation chamber and the meniscate burrows connected to it allow us to describe morphological details and reinterpret some characteristics of the fossil counterpart Castrichnus incolumis. The concavity of menisci, either in the burrow or in those pellets lining the chamber, shows concentric ridges and radiating striae that result from the impression of the last segments of the body. The meniscate burrows associated to the chamber are different from described ichnospecies of Taenidium, because of the surface texture of the meniscus. The aestivation chamber was produced during an atypical four-month drought in a region that lacks a seasonal climate. This suggests that Castrichnus incolumis would be also an indicator of drought periods even in non seasonal climates. Fil: Genise, Jorge Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina Fil: Cantil, Liliana Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina Fil: Dinghi, Pablo Adrián. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Grupo de Investigación en Filogeografía y Filogenias Moleculares; Argentina Fil: Sánchez, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina Fil: Sarzetti, Laura Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina

Published
2013

11. Species delimitation in the Andean grasshopper genus Orotettix Ronderos & Carbonell ( Orthoptera: Melanoplinae): an integrative approach combining morphological, molecular and biogeographical data.

Author

Pocco, Martina E., Minutolo, Carolina, Dinghi, Pablo A., Lange, Carlos E., Confalonieri, Viviana A., and Cigliano, María Marta

Subjects
GRASSHOPPERS, BIOGEOGRAPHY, PHYLOGEOGRAPHY, INSECT morphology, CLADISTIC analysis, MOLECULAR phylogeny
Abstract

The reciprocal illumination nature of integrative taxonomy through hypothesis testing, corroboration and revision is a powerful tool for species delimitation as more than one source has to support the hypothesis of a new species. In this study, we applied an integrative taxonomy approach combining molecular and morphological data sets with distributional patterns to examine the level of differentiation between and within the grasshopper Orotettix species. Orotettix was described based on five valid species distributed in the Andes of Peru. In our study, initially a molecular-based hypothesis was postulated and tested against morphological data and geographical patterns of distribution. Results from molecular and morphological analyses showed agreement among the species delimitation in Orotettix, and were also consistent with the geographical distribution. The analyses allowed us to delimit five new species for the genus ( O. lunatus sp. nov., O . astreptos sp. nov., O. colcaensis sp. nov., O . paucartambensis sp. nov. and O . dichrous sp. nov.) from the Eastern and Western Cordilleras of Peru. We also provide critical knowledge on the phylogenetic relationships and distribution of the genus and conduct a revision of Orotettix. © 2015 The Linnean Society of London [ABSTRACT FROM AUTHOR]

Published
2015
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12. Curved fossil bee cells as tools for reconstructing the evolutionary history and palaeogeographical distribution of Diphaglossinae ( Apoidea, Colletidae).

Author

Sarzetti, Laura C., Dinghi, Pablo A., Genise, Jorge F., Bedatou, Emilio, Verde, Mariano, and Dunlop, Jason

Subjects
*FOSSIL insects, *INSECT cell biotechnology, *BIOLOGICAL evolution, *COLLETIDAE, *ENVIRONMENTAL impact analysis, *PHYLOGENY
Abstract

The new ichnospecies Celliforma curvata is described to include curved fossil bee cells from Argentina, Uruguay and the USA. The upper part of the cell (neck) of the new ichnospecies is curved, and accordingly, it can be attributed to bees of the subfamily Diphaglossinae ( Colletidae). The oldest record of C. curvata, from the early Eocene of North America (52-49 Ma), provides a minimum age for the appearance of this subfamily, in accordance with an already proposed calibrated phylogeny. It is also proposed that these fossil cells could be used for future calibrations of molecular clocks. C. curvata indicates that Diphaglossinae had a widespread distribution, from southern Utah to extra- Andean Patagonia at 42° S. In contrast, extant representatives reach only 38° S in this region. Diphaglossinae were more extended southwards in the past thanks to better environmental conditions in extra- Andean Patagonia. [ABSTRACT FROM AUTHOR]

Published
2014
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13. The Aestivation Chamber of the Giant Earthworm Glossoscolex bergi (Glossoscolecidae) in the Subtropical Rainforest of Misiones (Argentina).

Author

Genise, Jorge F., Cantil, Liliana F., Dinghi, Pablo A., Sánchez, M. Victoria, and Sarzetti, Laura

Subjects
MEGASCOLIDES australis, RAIN forests, DROUGHTS, ENVIRONMENTAL indicators
Abstract

Glossoscolex bergi(Glossoscolecidae) is a giant earthworm from the rainforest of Misiones (Argentina). The large size of its aestivation chamber and the meniscate burrows connected to it allow us to describe morphological details and reinterpret some characteristics of the fossil counterpartCastrichnus incolumis. The concavity of menisci, either in the burrow or in those pellets lining the chamber, shows concentric ridges and radiating striae that result from the impression of the last segments of the body. The meniscate burrows associated to the chamber are different from described ichnospecies ofTaenidium,because of the surface texture of the meniscus. The aestivation chamber was produced during an atypical four-month drought in a region that lacks a seasonal climate. This suggests thatCastrichnus incolumiswould be also an indicator of drought periods even in non seasonal climates. [ABSTRACT FROM PUBLISHER]

Published
2013
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