Wyniki wyszukiwania

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The general distribution of Amphipoda Gammaridea in the North and Far-East Russian seas

100%

Tzvetkova N. L.

Polskie Archiwum Hydrobiologii

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1995

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tom 42

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nr 4

2

Extreme landscapes decrease taxonomic and functional bird diversity but promote the presence of rare species

84%

Godet L., Devictor V., Burel F., Robin J.-G., Menanteau L., Fournier J.

Acta Ornithologica

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2016

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tom 51

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nr 1

Human activities may generate geometrical landscape (i.e. composed of rectilinear and repetitive landscape units) structures that can significantly influence the spatial distribution of birds. While bird distribution in various landscape types has been extensively studied, the role played by landscape configuration and composition in different facets of bird diversity remains unclear. Here, these two main components of landscape characteristics (i.e. configuration and composition) are disentangled and their relative influence on three different facets of bird assemblages: taxonomie and functional characteristics, and the presence of rare species, is tested. We chose four large coastal salinas of Western France as a relevant model of geometrical and human-dominated landscapes where each landscape unit can be easily identified and mapped. The landscape characteristics of these sites were mapped and quantified. Then, terrestrial breeding birds were sampled in 172 point-counts using a standardized protocol. 69 diurnal terrestrial bird species were detected and considered in analyses (waterbirds and owls excluded). Landscape composition was found to have a higher influence on bird communities than landscape configuration, which fits with the "landscape composition hypothesis". More specifically, the most "extreme" landscapes — those with low terrestrial surface areas, low landscape richness and diversity, low cohesion, and very patchy landscapes with complex geometrical shapes — host the lowest bird taxonomie abundance, richness and diversity and functional richness, but are characterized by the presence of rare species (mainly wetland specialist species, e.g. Reed Bunting Emberiza schoeniclus and species with restricted ranges e.g. Bluethroat Luscinia svecica namnetum). Our results suggest that conservation plans in such geometrical and human-dominated habitats should not only focus on one aspect of landscape characteristics or one aspect of biological diversity but also consider the adverse effects of landscape characteristics on these different facets.

3

Response of soil nematodes to climate-induced melting of Antarctic glaciers

84%

Ilieva-Makulec K., Gryziak G.

Polish Journal of Ecology

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2009

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tom 57

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nr 4

811-816

Nematode colonization and establishment of nematode communities on icefree areas created by the recession of Antarctic glaciers were studied on the Antarctic Specially Protected Area (ASPA) No. 128 (Western coast of Admiralty Bay, King George Island, South Shetlands Islands). Soil samples were taken along three transects marked between sea shore and Ecology Glacier, Baranowski Glacier and Windy Glacier and assigned to four age-class intervals: 0-7, >7– 29, >29–52 and >52 years after the retreat of the glaciers. Changes in nematode communities, in terms of abundance, diversity and trophic structure were related to the duration of the ice-free period. The abundance of nematodes increased with the age of ice-free areas. The highest numbers of nematodes were found on the sites free of ice for more than 52 years. Taxonomic and trophic diversity of nematodes on these sites was also significantly higher in comparison to the rest sites. Nematode communities on the sites from the first three age-class intervals were poor in genera (up to 6 genera) while on the oldest sites in total 16 genera of nematodes were found. A trend of increasing the number of nematode trophic groups along the age classes was also apparent – from community of nematodes belonging to only two trophic groups (bacterial and fungal feeders) on younger ice-free sites to more complex community of nematodes (belonging to five trophic groups), at the oldest sites.

4

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The role of wild fowl in the circulation of potentially pathogenic fungi in the biosphere

84%

Dynowska M., Biedunkiewicz A., Ejdys E., Sucharzewska E., Kubiak D., Meissner W., Wojczulanis-Jakubas K., Dziekonska-Rynko J., Goralska K., Rokicki J.

Annals of Parasitology

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2016

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tom 62

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nr Suppl.

5

Faunistique et biogeographie des amphipodes marins benthiques de mediterranee

84%

Bellan-Santini D., Ruffo S.

Polskie Archiwum Hydrobiologii

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1995

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tom 42

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nr 4

6

Diversity dynamics of Early-Middle Jurassic brachiopods of Caucasus, and the Pliensbachian-Toarcian mass extinction

84%

Ruban D. A.

Acta Palaeontologica Polonica

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2004

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tom 49

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nr 2

Taxonomic diversity of NW Caucasus brachiopods changed cyclically in the Early–Middle Jurassic. Diversifications took place in the Late Sinemurian–Early Pliensbachian, Middle–Late Toarcian and Late Aalenian–Early Bajocian, while diversity decreases occured in Late Pliensbachian–Early Toarcian, Early Aalenian and Late Bajocian. Outstanding diversity decline in the Late Pliensbachian–Early Toarcian corresponds to a global mass extinction interval, whose peak has been documented in the Early Toarcian. Similar diversity changes of brachiopods are observed in other Tethyan regions, including the well−studied Bakony Mountains, although in NW Caucasus the recovery after demise have begun earlier. The causes of Pl−To mass extinction in the studied region are enigmatic. Probably, it could be linked to anoxia, but its correspondence to the beginning of transgression is not coincident with the global record, so eustatic causes seem to be doubtful for this region.

7

A comparison of the amphipod faunal diversity in two polar fjords: Admiralty Bay, King George Island [Antarctic] and Hornsund, Spitsbergen [Arctic]

84%

Jazdzewski K., Weslawski J. M., De Broyer C.

Polskie Archiwum Hydrobiologii

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1995

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tom 42

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nr 4

8

Taxonomic diversity of potentially pathogenic fungi constituting a risk to children’s health isolated from sandpits in Lodz

67%

Goralska K., Kurnatowski P., Blaszkowska J., Wojcik A.

Annals of Parasitology

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2016

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tom 62

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nr Suppl.

Ograniczanie wyników

The general distribution of Amphipoda Gammaridea in the North and Far-East Russian seas

Extreme landscapes decrease taxonomic and functional bird diversity but promote the presence of rare species

Response of soil nematodes to climate-induced melting of Antarctic glaciers

The role of wild fowl in the circulation of potentially pathogenic fungi in the biosphere

Faunistique et biogeographie des amphipodes marins benthiques de mediterranee

Diversity dynamics of Early-Middle Jurassic brachiopods of Caucasus, and the Pliensbachian-Toarcian mass extinction

A comparison of the amphipod faunal diversity in two polar fjords: Admiralty Bay, King George Island [Antarctic] and Hornsund, Spitsbergen [Arctic]

Taxonomic diversity of potentially pathogenic fungi constituting a risk to children’s health isolated from sandpits in Lodz