TY - JOUR
T1 - Waterbird phenology and opportunistic acceptance of a low quality staging site at Lake Baikal, eastern Siberia
AU - Anthes, Nils
AU - Bergmann, Hans-Heiner
AU - Hegemann, Arne
AU - Jaquier, Sophie
AU - Kriegs, Jan-Ole
AU - Pyzhjanov, Sergej
AU - Schielzeth, Holger
PY - 2004
Y1 - 2004
N2 - We analyse late summer phenology, abundance, and diversity of waders and waterfowl on a small gravel island, Kosa, on the western shore of Lake Baikal, eastern Siberia. We expected that the assemblages of waterbirds at such a small-scale, low quality roosting site would be characterised by lower species-diversity and numbers compared with high-quality staging sites like coastal mudflats. In comparison with such sites, however, Kosa Island hosted a surprisingly diverse wader assemblage. Abundance, in contrast, was as expected very low, and rather equally distributed across species. Consequently, Shannon diversity indices and the evenness of species abundance were high compared to high quality staging sites like the German Wadden Sea. We speculate that the combination of high diversity and high evenness indices may generally characterise low quality staging sites that are visited by a wide array of species in an opportunistic fashion. However, comparative analyses of a larger sample of sites are needed to test this prediction.
AB - We analyse late summer phenology, abundance, and diversity of waders and waterfowl on a small gravel island, Kosa, on the western shore of Lake Baikal, eastern Siberia. We expected that the assemblages of waterbirds at such a small-scale, low quality roosting site would be characterised by lower species-diversity and numbers compared with high-quality staging sites like coastal mudflats. In comparison with such sites, however, Kosa Island hosted a surprisingly diverse wader assemblage. Abundance, in contrast, was as expected very low, and rather equally distributed across species. Consequently, Shannon diversity indices and the evenness of species abundance were high compared to high quality staging sites like the German Wadden Sea. We speculate that the combination of high diversity and high evenness indices may generally characterise low quality staging sites that are visited by a wide array of species in an opportunistic fashion. However, comparative analyses of a larger sample of sites are needed to test this prediction.
M3 - Article
SN - 0260-3799
VL - 105
SP - 75
EP - 83
JO - The Wader Study Group Bulletin
JF - The Wader Study Group Bulletin
ER -