14 results on '"epiphytic mosses"'
Search Results
2. Magnetic Particles In Soils And Epiphytes In The Zone Of Influence Of A Ferrous Metallurgy Factory In The City Of Perm
- Author
-
A. V. Bobrova and A. A. Vasil’ev
- Subjects
magnetic susceptibility ,heavy metals ,urban soils ,epiphytic mosses ,aerial pollution ,electron microscopic analysis ,Geography (General) ,G1-922 - Abstract
The intensification of industrial production leads to an increase in the technogenic impact on the environment. Minerals containing iron are sensitive to many environmental processes and analysis of the composition of magnetic particles is relevant in the study of environmental pollution. This study focused on urban soils of near-trunk circles and epiphytic mosses on Populus nigra L. in the territory of Motovilikhinsky district of Perm, where a metallurgical plant is located. In this work, using electron probe microanalysis and scanning electron microscopy, we analyzed the magnetic susceptibility (MS), morphology, and chemical composition of magnetic particles isolated from urban soils and epiphytic mosses. The content of heavy metals in the studied soils exceeds the clarkes of chemical elements (CCE) in the upper continental crust: Cr - 286 times, Mn - 15 times, Fe - 11 times, Ti - 4 times, Mg - 4 times. The study of the chemical composition of epiphytes made it possible to assess the contribution of aerial sources to soil pollution. The concentrations of metals in the magnetic particles of epiphytes also exceed the Clarke values: Cr - 3257 times, Fe - 8 times, Ti - 7 times, Mg - 4 times. The similarity of the morphology and chemical composition of the magnetic particles of soils and epiphytes indicate common sources of pollution. A comprehensive assessment of the state of the territory may include magneto-geochemical monitoring of the soil cover and monitoring of the magnetic state of epiphytes on Populus nigra L.
- Published
- 2023
- Full Text
- View/download PDF
3. Rainfall and gemmiferous shoots influence asexual reproduction in two tropical mosses
- Author
-
Dennis Alejandro Escolástico-Ortiz and Claudio Delgadillo-Moya
- Subjects
Calymperes afzelii ,dioicous mosses ,epiphytic mosses ,gemmae production ,Syrrhopodon incompletus ,Botany ,QK1-989 - Abstract
Background: For some bryophytes, asexual reproduction may be the primary means of population survival, which can be affected by rainfall and moss colony features. Questions and / or Hypotheses: We investigated i) how gemma output differed in two tropical epiphytic mosses with mainly asexual and sexual-asexual reproduction; ii) how is the pattern of gemmae production through an annual interval; and iii) whether gemma production in both species is correlated with rainfall and colony features (shoot density, number of gemmiferous shoots, and sexual structures) per shoot and area (cm2). Studied species / data description /Mathematical model: Calymperes afzelii Sw. and Syrrhopodon incompletus Schwägr. Study site and dates: The sampling was conducted every two months for a year at Agua Blanca State Park in Tabasco, Mexico. Methods: Squares were used to record the gemma production per shoot and cm2, the number of gemmiferous shoots, and shoots with sexual structures. Daily mean precipitation was obtained from a meteorological station. We analysed the effect of rainfall and colony features on gemmae production at the shoot and cm2 levels using generalized linear models. Results: C. afzelii produced gemmae more constantly than S. incompletus. Gemma production is higher during months of high rainfall. The rainfall and number of gemmiferous shoots are suitable predictors of gemma production. Conclusions: Our results exemplify how rainfall and gemmiferous shoots influence the production of asexual propagules in two mosses with different reproductive strategies in the same tropical environment. This information is essential to understand the population dynamics of tropical mosses.
- Published
- 2023
- Full Text
- View/download PDF
4. СОСТАВ МАГНИТНОЙ ФАЗЫ ПОЧВ И ЭПИФИТОВ НА ТЕРРИТОРИИ ГОРОДА ЛЫСЬВА ПЕРМСКОГО КРАЯ
- Subjects
аэральное загрязнение ,магнитный концентрат ,мхи-эпифиты ,сферулы ,aerial pollution ,урбопочвы ,spherules ,urban soils ,epiphytic mosses ,тяжелые металлы ,heavy metals ,magnetic concentrate - Abstract
В статье приведены результаты микрозондового анализа сильномагнитных фаз почв и мхов-эпифитов промышленного города Лысьва Пермского края. В качестве объектов исследования были выбраны почвы и эпифитный мох плевроциум шребера (Pleurozium schreberi (Willd. ex Brid.) Mitt.) на стволах тополя черного (Populus nigra L.). В данной работе отражены исследования элементного химического и минералогического составов частиц магнитной фазы почвенных и эпифит -ных образцов. Изученные образцы характеризуются наличием в своем составе магнитных частиц, обогащенных Zn, Pb, Ni, Cu, Cr. Валовой химический состав почв определен на спектрометре Axious Advanced PW 4400/04. Анализ магнитных частиц образцов выполнен с использованием растровых электронных микроскопов: VEGA II LMU, FEI Quanta 650 FEG. Частицы магнитных фаз имеют обломочную и сферическую формы. По результатам исследования выдвинуто предположение, что сферические магнитные частицы аккумулируются в верхних горизонтах почв и в составе мхов-эпифитов в результате их аэрального загрязнения ввиду деятельности промышленных предприятий города Лысьва. Приоритетным загрязнителем почв является Zn, что связано с техно-геохимической специализацией промышленных предприятий города Лысьва., The article presents the results of microprobe analysis of highly magnetic phases of soils and epiphytic mosses in the industrial city of Lysva, Perm region. Soils and epiphytic moss Pleurozium schreberi (Willd. ex Brid.) Mitt. on the trunks of black poplar (Populus nigra L.) were chosen as the objects of study. This paper reflects the study of the elemental chemical and mineralogical compositions of the particles of the magnetic phase of soil and epiphytic samples. The studied samples are characterized by the presence in their composition of magnetic particles enriched in Zn, Pb, Ni, Cu, Cr. The bulk chemical composition of soils was determined on an Axious Advanced PW 4400/04 spectrometer. Analysis of the magnetic particles of the samples was performed using scanning electron microscopes: VEGA II LMU, FEI Quanta 650 FEG. The particles of the magnetic phases have detrital and spherical shapes. Based on the results of the study, it was suggested that spherical magnetic particles accumulate in the upper horizons of soils and in the composition of epiphytic mosses as a result of their aerial pollution due to the activity of industrial enterprises in the city of Lysva. The priority soil pollutant is Zn, which is associated with the techno-geochemical specialization of industrial enterprises in the city of Lysva.
- Published
- 2023
- Full Text
- View/download PDF
5. Diversity of liverworts (Marchantiophyta) in the Bromo Tengger Semeru National Park Area
- Author
-
Sofiyana, Marinda Sari
- Subjects
Diversity ,Epiphytic mosses ,the Bromo Tengger Semeru National Park ,Biology Education ,Botany - Abstract
The Bromo Tengger Semeru National Park (BTSNP) has a high diversity of habitats, making this area a good habitat for mosses. This study aims to explore the types of epiphytic mosses in the BTSNP. The research was conducted from March to April 2013. Mosses were collected using the transect method and plot sampling. Samples were collected at three different altitudes (< 1000 masl, 1000–2000 masl, and > 2000 masl). Three research plots were made at each location with a size of 50x50 m, with a minimum distance of 500 m between plots. In each plot, five trees with a diameter of 10–30 cm were selected. To maximize information related to species diversity, different tree bark textures were selected (rough and smooth). The diversity of epiphytic mosses in the BTSNP was evident in 44 species (11 mosses and 33 liverworts). The highest moss diversity in the BTSNP was found in the Hypnaceae, Lejeuneaceae, and Plagiochilaceae. The diversity of epiphytic mosses in BTSNP was in the moderate category (1
- Published
- 2022
6. Analysis of metal content and vertical stratification of epiphytic mosses along a Karst Mountain highway.
- Author
-
Liu, Run, Zhang, Zhaohui, Shen, Jiachen, and Wang, Zhihui
- Subjects
MOSSES ,EPIPHYTIC bacteria ,MOUNTAINS ,METALS ,MINERALS - Abstract
Road-based transport emissions are a major source of atmospheric metal pollution. However, there have been few studies on emissions from road traffic in mountainous areas. In this study, epiphytic mosses from trees at different elevations of a highway, a typical road with extraordinary elevation change in a mountainous area of karst in Guizhou, China, were analyzed for metal content as well as the spatial distribution pattern of metals. Mosses were sampled from three sections of highway at different elevations, from 1292-1357, 1394-1441, to 1481-1548 m. Principal component analysis and heat-map clustering were used to identify the principal factors affecting metal deposition. The results show that the metals of mosses from different elevations were divided into four factors. Group 1 which included Ni, Fe, Mg, Ba, and Al was attributed to a dominantly geogenic source. Group 2 included Zn, Cu, Mn, and Cr, from vehicle-related materials including tires and brakes. Group 3, Cd, can be attributed to high Cd background levels from local origins and traffic emissions, particularly tire wear. Group 4, Pb, is associated with brake wear and historical deposition. The epiphytic moss widely distributed in the study area, Ectropothecium aneitense Broth. & Watts, was used to analyze the spatial distribution pattern of the metals. Metal content gradually decreased with increase in elevation. Levels of Ni, Fe, Mn, Ba, and Cd were all significantly correlated with elevation (p < 0.05), simultaneously affected by terrain and vertically stratified. We highlighted the vertical distribution characteristics of metal in epiphytic mosses in this study, which could improve moss application for ecological monitoring due to road-based transport emissions with elevation changes. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
7. Ulota drummondii (Orthotrichaceae, Bryopsida) in the Iberian Peninsula.
- Author
-
Muñoz-Puelles, Laura, Garilleti, Ricardo, Caparrós, Rut, and Lara, Francisco
- Subjects
- *
EPIPHYTES , *MOSSES , *NATIVE plants , *CLIMATOLOGY , *MICROSCOPES - Abstract
Abstract Ulota drummondii (Hook. & Grev.) Brid. is a Suboceanic Boreal-montane epiphytic moss whose disjunct distribution includes both coasts of North America, East Asia, as well as northern and central Europe, being an extraordinarily rare moss in its southernmost known localities in Europe. It was reported some years ago from northern Spain, but the revision of the specimens on which the record was based demonstrate to be misidentified. Therefore, this species was not included in the treatment of the genus Ulota in the Flora Briofítica Ibérica. Recently, the species was collected 140 km away of the previous erroneous record, and this led to a search for other specimens from the main Iberian herbaria. Here, we present a description of this moss based on the Spanish material in order to complete certain shortcomings or inaccuracies found in previous descriptions. Additionally, the species is illustrated with pictures from both stereo and light microscopes. A key for the discrimination of the Ulota s.l. species (including genus Plenogemma Plášek, Sawicki & Ochyra) recognised in Europe and surrounding territories is presented. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
8. TAXONOMIC STRUCTURE OF NEMATODE COMMUNITIES OF EPIPHYTIC MOSSES IN GREEN PLANTATIONS OF CHERNIHIV, UKRAINE.
- Author
-
Shevchenko, V. L. and Zhylina, T. M.
- Subjects
- *
EPIPHYTIC bacteria , *TAXONOMIC logic , *RHABDITIDA , *SECERNENTEA - Abstract
In the city of Chernihiv, nematodes of epiphytic mosses were studied for the fi rst time. 40 nematode species belonging to 30 genera, 20 families and 8 orders were revealed. Most of the identifi ed species belonged to the order Rhabditida: 12 species or 30 % of total number. Nematodes of the order Plectida were the most abundant in the studied communities, they composed 61.21 % of total specimens collected. Nine species: Plectus parietinus (Bastian, 1865) Paramonov, 1964, Mesodorylaimus bastiani (Bütschli, 1873), Geomonhystera villosa Butschli, 1837, Tylocephalus auriculatus (Bütschli, 1873) Anderson, 1966, Aphelenchoides composticola Franklin, 1957, Panagrolaimus rigidus (Schneider, 1866) Th orne, 1937, Eudorylaimus circulifera Loof 1961, Plectus parvus (Bastian, 1865) Paramonov, 1964, Laimaphelenchus penardi (Steiner, 1914) Filipjev et Sch. Stek., 1941 constituted the core of nematode communities in epiphytic mosses. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
9. New records of tardigrades from Colombia (Guatavita, Cundinamarca Department).
- Author
-
MELO, Jenny C., BELTRÁN-PARDO, Eliana, BERNAL, Jaime Eduardo, and KACZMAREK, Łukasz
- Subjects
- *
TARDIGRADA , *BODY composition , *EPIPHYTES , *FORESTS & forestry , *ZOOLOGY - Abstract
The water bears (Tardigrada) from Colombia are rather poorly known; thus, the aim of this research was to study the composition of tardigrade fauna inhabiting epiphytic and rock mosses in a high Andean forest in Guatavita. A 25-m² plot was delimited and 6 randomly chosen trees with epiphytic mosses were sampled. Twelve samples of epiphytic mosses and 6 of rock mosses were collected and examined. A total of 277 specimens and 6 eggs of 8 tardigrade taxa were found in these samples. All taxa are new records for Guatavita and 5--Hypsibius dujardini (Doyère, 1840); Milnesium katarzynae Kaczmarek et al., 2004; Milnesium krzysztofi Kaczmarek & Michalczyk, 2007; Milnesium granulatum Ramazzotti 1962; and Paramacrobiotus danielae (Pilato et al., 2001)--are also new for Colombia. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
10. Порівняльний аналіз нематодофауни епіфітних мохів рекреаційних парків міста Чернігова
- Author
-
Zhylina, Tetiana and Shevchenko, Valentyna
- Subjects
нематодофауна ,епіфітні мохи ,Чернігів ,домінування ,індекси схожості ,індекс зрілості ,lcsh:Biology (General) ,УДК 595.132:625.734.3(477.51-25) ,lcsh:QH301-705.5 ,epiphytic mosses ,nematode fauna ,Chernihiv ,dominance ,similarity indices ,maturity index - Abstract
The taxonomic features of the groups of nematode epiphytic mosses of three recreational parks of Chernigov city were studied.The mosses were collected from the trunks of trees at the height 100–120 cm, and the mean sample was formed. The separation of nematodes was carried out by the funnel method of Baermann, exposition was 48 hours. The separated nematodes were fixed by TAP, and the temporal water-glycerine micropreparations were made. For the analysis of nematode fauna, the share of participation of each variety in fauna composition, frequency of occurrence, taxonomic richness (ST), Menhinik index of specific richness (DMn),, Berger-Parker index (d), Jakkard index(J), Sorencen index (C), Bongers maturity index of nematode groups – MI were calculated.There were revealed 40 varieties of nematodes that belong to 30 genera, 20 families and 8 orders. 12 (30 %) varieties of nematodes were found to be common for epiphytic mosses of all park zones. The value of Jakkard index between nematode complexes of studied parks didn’t exceed 0,48. In nematode groups the most numerous were representatives of Plectidae family.It was established, that the condition of environment of nematodes of epiphytic mosses is the best at natural boundary “Kordivka” that is testified by the indices of richness (DMn was 1,80 against 0,71 and 0,62in other parks) and fauna diversityА (ST was 79 against 58 and 55), low level of dominance (d was 0,26 against 0,42 and 0,39), maturity of groups (MI was 3,18 against 2,27 and 2,58), На території м. Чернігова в трьох рекреаційних парках вивчали фауну нематод епіфітних мохів. Зареєстровано 40 видів нематод, які належать до 20 родин та 8 рядів. Дванадцять видів виявилися спільними для досліджених парків. В угрупованнях нематод більш чисельними були представники родини Plectidae. Встановлено, що стан середовища для існування нематод епіфітних мохів кращий в урочищі “Кордівка”, про що свідчать показники багатства та різноманітності фауни, ступеня домінування, зрілості угруповань
- Published
- 2017
11. Taxonomic Structure Of Nematode Communities Of Epiphytic Mosses In Green Plantations Of Chernihiv, Ukraine
- Author
-
V. L. Shevchenko and T. M. Zhylina
- Subjects
0106 biological sciences ,frequency of occurrence ,Ecology ,010607 zoology ,Biodiversity ,Biology ,biology.organism_classification ,species proportion in the community ,01 natural sciences ,Nematode ,QL1-991 ,nematodes ,Botany ,epiphytic mosses ,structure of nematode communities ,Animal Science and Zoology ,Epiphyte ,Zoology ,chernihiv ,Ecology, Evolution, Behavior and Systematics ,010606 plant biology & botany ,Taxonomy - Abstract
In the city of Chernihiv, nematodes of epiphytic mosses were studied for the fi rst time. 40 nematode species belonging to 30 genera, 20 families and 8 orders were revealed. Most of the identifi ed species belonged to the order Rhabditida: 12 species or 30 % of total number. Nematodes of the order Plectida were the most abundant in the studied communities, they composed 61.21 % of total specimens collected. Nine species: Plectus parietinus (Bastian, 1865) Paramonov, 1964, Mesodorylaimus bastiani (Butschli, 1873), Geomonhystera villosa Butschli, 1837, Tylocephalus auriculatus (Butschli, 1873) Anderson, 1966, Aphelenchoides composticola Franklin, 1957, Panagrolaimus rigidus (Schneider, 1866) Thorne, 1937, Eudorylaimus circulifera Loof 1961, Plectus parvus (Bastian, 1865) Paramonov, 1964, Laimaphelenchus penardi (Steiner, 1914) Filipjev et Sch. Stek., 1941 constituted the core of nematode communities in epiphytic mosses.
- Published
- 2016
12. Preliminary list of mosses collected from tree branches in Mexico
- Author
-
K. Thornburgh
- Subjects
Epiphytic mosses ,Botany ,QK1-989 - Abstract
List of species of epiphytic mosses
- Published
- 1975
- Full Text
- View/download PDF
13. Habitat Preference in Pleurocarpus Mosses of Imphal District, Manipur, India
- Author
-
Govndapyari, H., Sanavar, Bahuguna, Y.M., and Uniyal, P.L
- Published
- 2014
- Full Text
- View/download PDF
14. Mature spores of four pleurocarpous mosses in the Canary Islands: ultrastructure and early germination stages
- Author
-
Alfayate, Carmen, Ron, Eugenia, Estébanez, Belén, and Pérez-Batista, Miguel Ángel
- Published
- 2013
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.