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Wyszukujesz frazę "bryophytes" wg kryterium: Temat


Tytuł:
Testate Amoeba Communities of Epilithic Mosses and Lichens: New Data from Russia, Switzerland and Italy
Autorzy:
Mazei, Yuri
Belyakova, Olga
Coppellotti, Olimpia
Payne, Richard J.
Tematy:
Arcelllinida, Euglyphida, bryophytes, lichens, ecology, biogeography
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Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Powiązania:
https://bibliotekanauki.pl/articles/763527.pdf  Link otwiera się w nowym oknie
Opis:
The testate amoebae (TA) of many potential habitats around the world have been barely investigated but data on species presence and abundance is essential to answering big questions about microbial biogeography and the diversity of protist life. One such habitat lacking basic data is epilithic mosses and lichens with only a small number of samples analysed in previous studies and no systematic attempt to understand potential environmental controls. We use a large dataset (n = 81) from sites in Russia, Switzerland and Italy to demonstrate that testate amoebae in this habitat are both abundant and diverse. The community of our samples was dominated by ubiquitous taxa and differed between the northern (Russia) and southern (Switzerland and Italy) sites, perhaps due to differences in climate or air quality. Community composition, concentration and diversity were explained by moisture content but not by elevation above the ground surface and there were no significant differences between communities of mosses and lichens. Surprisingly our data showed a significant difference between communities of epiphytic and epilithic lichens in the same region sampled at the same time. Our study adds to the evidence that moisture availability is a critical factor in structuring testate amoeba communities across habitats and highlights the paucity of knowledge of TA in many environments.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mszaki rezerwatu „Jamno”
Bryophytes of the „Jamno” nature reserve
Autorzy:
Wolski, Grzegorz J.
Woziwoda, Beata
Pawicka, Katarzyna
Tematy:
bryophytes
Jamno
nature reserve
mszaki
rezerwat
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Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Powiązania:
https://bibliotekanauki.pl/articles/510593.pdf  Link otwiera się w nowym oknie
Opis:
The 39 bryophytes species – seven liverworts and 32 mosses belonged to 21 families have been noted in “Jamno” nature reserve in 2011. Hypnaceae, Brachytheciaceae and Dicranaceae are families represented by the highest number of species (see table 1). Bryophytes grow on various type of habitat: epigeic – mineral soil, humus and litter, epiphytic – bark of trees, epixylic – tree stumps and epilithic – stones. The highest number of mosses was found on bark of silver firs Abies alba, pedunculate oaks Quercus robur, silver birches Betula pendula and Scots pines Pinus sylvestris. Five valuable protected species Dicranum scoparium, Leucobryum glaucum, Pleurozium schreberi, Pseudoscleropodium purum and Thuidium tamariscinum were noted in this small forest reserve. The occurrence of one mountain species Hypnum pallescens is also interesting and noteworthy.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vegetation diversity and selected abiotic factors influencing the primary succession process on the foreland of Gåsbreen, Svalbard
Autorzy:
Węgrzyn, Michał
Wietrzyk-Pełka, Paulina
Lisowska, Maja
Opis:
The rapidly changing Arctic provides excellent opportunities for investigating primary succession on freshly deglaciated areas. Research on the Gåsbreen foreland (S Spitsbergen) traced the succession of particular groups of organisms and species, particularly lichens and bryophytes, and determined the effect of selected abiotic factors on this succession. Fieldwork in 2008, employed a continuous linear transect of phytosociological relevés (1 m2) along the foreland. Data analysis allowed to distinguish five different succession stages and three types of colonisers. Canonical correspondence analysis and a permutation test showed that distance from the front of the glacier and fine grain material in the substrate mostly influenced the distribution and abundance of vegetation, and the steepness of the moraine hills affected the colonisation process, mainly in the older part of the marginal zone.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł

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