Nest usurpation by a common eider toward a long-tailed duck

Polar research

Mark Maftei²  Isabeau Pratte³  Mark L. Mallory⁴ 

[1] High Arctic Gull Research Group, 109 Kings Road, Bamfield, British Columbia V0R 1B0, Canada;High Arctic Gull Research Group, 109 Kings Road, Bamfield, British Columbia V0R 1B0, CanadaCorrespondence;Biology Department Acadia University, 15 University Avenue, Wolfville, Nova Scotia B4P 2R6, Canada;High Arctic Gull Research Group, 109 Kings Road, Bamfield, British Columbia V0R 1B0, Canada

关键词: Nest takeover;    sea ducks;    Somateria mollissima;    Clangula hyemalis;    High Arctic;    limited habitat;   

DOI  :  10.3402/polar.v35.32414

学科分类：自然科学（综合）

来源: Co-Action Publishing

【 摘 要 】

Intraspecific and non-obligate brood parasitism and nest takeover is well documented in common eiders (Somateria mollissima borealis) nesting in the Arctic. However, we report the takeover of a long-tailed duck (Clangula hyemalis) nest by a female common eider on Nasaruvaalik Island, Nunavut, Canada. The high nesting density due to limited habitat in the region may have contributed to this seemingly risky behaviour, which provides no clear benefits to the eider.

【 授权许可】

CC BY-NC