Nutritional and feeding ecology in Corys shearwater Calonectris diomedea during breeding
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چکیده
منابع مشابه
Nutritional and feeding ecology in Cory’s shearwater Calonectris diomedea during breeding
In birds, parents adjust their feeding behaviour according to breeding duties, which ultimately may lead to seasonal adjustments in nutritional physiology and hematology over the breeding season. Although avian physiology has been widely investigated in captivity, few studies have integrated individual changes in feeding and physiological ecology throughout the breeding season in wild birds. To...
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A major challenge in conservation physiology is to find out biomarkers that reliably reflect individual variation in wear and tear. Recent work has suggested that biomarkers of oxidative stress may provide an additional tool to assess the health state of individuals and to predict fitness perspectives. In this study, we assessed whether three biomarkers of plasma oxidative status predicted the ...
متن کاملForaging segregation between two closely related shearwaters breeding in sympatry.
Trophic segregation has been proposed as a major mechanism explaining the coexistence of closely related animal taxa. However, how such segregation varies throughout the annual cycle is poorly understood. Here, we examined the feeding ecology of the two subspecies of Cory's shearwater, Calonectris diomedea diomedea and Calonectris diomedea borealis, breeding in sympatry in a Mediterranean colon...
متن کاملEnvironmental determinants of foraging strategies in Cory’s shearwaters Calonectris diomedea
Despite the advent of devices to track seabird movements, the extent to which productive areas and oceanic winds influence foraging strategies is still not fully understood. We investigated the main environmental determinants of foraging strategies in Cory’s shearwaters Calonectris diomedea by combining satellite-tracking information from 14 birds breeding on the Canary Islands with concurrent ...
متن کاملInter- and intraspecific variation of the nucleotide sequence of the cytochrome b gene in Cory's (Calonectris diomedea), Manx Shearwater (Puffinus puffinus) and the Fulmar (Fulmarus glacialis).
The cytochrome b gene of three European taxa of the family of Procellariidae was amplified from total DNA and sequenced. The sequence comparison shows that the Fulmar (Fulmarus glacialis) is significantly distinct from shearwaters, whereas Cory's (Calonectris diomedea) and Manx Shearwater (Puffinus puffinus) are closely related. Although the populations of C. diomedea can be distinguished morph...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 2007
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps07115