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Identifying important habitats for waterbird conservation at a Greek Regional Nature Park

Avian Research 2020年第4期11卷 452-464页

作者： Vasilios Liordos Vasileios J.Kontsiotis Hellenic Forest Service 12 Minoas str19100 MegaraAttikiGreece Department of Forest and Natural Environment Sciences International Hellenic UniversityP.O.Box 17266100 DramaGreece.

Background:small coastal wetlands are vital sites for wintering *** important habitats is critical for managing waterbirds *** Vourkari inlet is a small coastal wetland located near the capital Athens,within the most urbanized and industrialized area of *** aimed at identifying the most important habitats for waterbirds at the Vourkari inlet during ***:Data about habitat use and availability were collected for 14 waterbird species and for seven habitat *** selection(Manly’s selection ratio),overlap indices(Pianka’s niche overlap index)and null models were ***:All the studied waterbird species selected available habitats *** waters(0–2 m),were used by 13 waterbirds and selected by five *** and channels were used and selected by 10 *** was used by nine species and selected by six *** with rocky substrate was used by nine species and selected by eight ***(2–4 m)and deep(4–6 m)open water habitats were used by seven species and selected by four *** vegetation was used by six species and selected by two *** habitats were selected by nationally important populations:mudflat habitats(i.e.,mud,mud with rocky substrate and pools and channels)by Common Redshanks(Tringa totanus),halophytic vegetation by Little Egrets(Egretta garzetta),shallow waters by Common Shelducks(Tadorna tadorna)and medium and deep waters by Sandwich Terns(Thalasseus sandvicencis),whilst shallow waters and mudflat habitats were preferred by a possibly internationally important population of Mediterranean Gulls(Ichthyaetus melanocephalus).Although overlap in habitat use between species was generally low,null models indicated habitat sharing and a lack of ***:Waterbirds coexisted in the absence of competition for habitats at Vourkari,where they mostly used and preferred shallow water and *** coastal wetlands are numerous,

关键词： Habitat selection Habitat use Mudflats Niche overlap Null models Open water small coastal wetlands

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