A Noteworthy Plumage Observed in the American Eider Drake (Somateria dresseri)
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Prevalence and Distribution of Wellfleet Bay Virus Exposure in the Common Eider (somateria Mollissima).
Between 1998 and 2014, recurrent mortality events were reported in the Dresser's subspecies of the Common Eider ( Somateria mollissima dresseri) on Cape Cod, Massachusetts, US near Wellfleet Harbor. The early die-offs were attributed to parasitism and emaciation, but beginning in 2006 a suite of distinct lesions was observed concomitant with the isolation of a previously unknown RNA virus. This...
متن کاملFactors affecting plasma concentrations of prolactin in the common eider Somateria mollissima.
In the common eider only the females incubate while they fast for 25 days. Thus, since they rely entirely on their body reserves for successful incubation, they can be defined as capital incubators. To assess the potential effects of their initial body mass, the incubation duration, and depletion in body reserves on prolactinemia, blood samples of eiders were analyzed during the breeding cycle ...
متن کاملInfluence of petroleum hydrocarbons on the endoparasitic helminths of the common eider, Somateria mollissima, from Newfoundland.
A comparison of commonly occurring metazoan parasites in the digestive tract was made between common eiders, Somateria mollissima, that were contaminated with oil and reference birds confiscated from illegal hunting. There was a greater number of commonly occurring parasites and their abundance in reference than in oiled eiders. Except for an acanthocephalan, Polymorphus botulus, which was embe...
متن کاملTrinoton querquedulae (Linnaeus, 1758) (Phthiraptera: Amblycera, Menoponidae) - a rare parasite of the Eider duck Somateria mollissima (Linnaeus, 1758).
In October 2006 an individual of the Common Eider (Somateria mollissima) was examined and one female of Trinoton querquedulae was found on one of the remiges. This species of lice was recorded for the first time in Poland on the studied host. Up till now, T querquedulae has been noted only on this duck species in Belgium. Considering the extremely scarce information available, this species of l...
متن کاملDifferential investment and costs during avian incubation determined by individual quality: an experimental study of the common eider (Somateria mollissima).
Individuals of different quality may have different investment strategies, shaping responses to experimental manipulations, thereby rendering the detection of such patterns difficult. However, previous clutch-size manipulation studies have infrequently incorporated individual differences in quality. To examine costs of incubation and reproductive investment in relation to changes in clutch size...
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ژورنال
عنوان ژورنال: The Auk
سال: 1897
ISSN: 0004-8038,1938-4254
DOI: 10.2307/4068643