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

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...

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Bibliographic Details
Published in:Polar Research
Main Authors: Isabeau Pratte, Mark Maftei, Mark L. Mallory
Format: Article in Journal/Newspaper
Language:English
Published: Norwegian Polar Institute 2016
Subjects:
Nest takeover
sea ducks
Somateria mollissima
Clangula hyemalis
High Arctic
limited habitat
envir
geo
Arctic
Nunavut
Canada
Common Eider
Polar Research
Online Access:https://doi.org/10.3402/polar.v35.32414
https://doaj.org/article/e1e8a0ad814746f1902b22eb56eba8d4
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Summary: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.

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