Ambient temperature, body condition and sibling rivalry explain feather corticosterone levels in developing black kites
نویسندگان
چکیده
منابع مشابه
Feather corticosterone content in predatory birds in relation to body condition and hepatic metal concentration.
This study investigated the feasibility of measuring corticosterone in feathers from cryo-archived raptor specimens, in order to provide a retrospective assessment of the activity of the stress axis in relation to contaminant burden. Feather samples were taken from sparrowhawk Accipiter nisus, kestrel Falco tinnunculus, buzzard Buteo buteo, barn owl Tyto alba, and tawny owl Strix aluco and the ...
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This article presents a view of the relationship between K&R C’s most prominent descendants: ISO C and ISO C++. It gives a rough chronology of the exchanges of features between the various versions of C and C++ and presents some technical details related to their most significant current incompatibilities. My focus here is the areas where C and C++ differ slightly (‘‘the incompatibilities’’), r...
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In migratory species, breeding and non-breeding locations are geographically separate, yet the effects of conditions from one stage may carry over to affect a subsequent stage. Ideally, to understand the mechanisms and implications of 'carry-over effects', one would need to follow individuals throughout the year, quantify potential environmental causal factors and physiological mediators during...
متن کاملCorticosterone levels of tufted puffins vary with breeding stage, body condition index, and reproductive performance.
Corticosterone (CORT) levels in free-living animals are seasonally modulated and vary with environmental conditions. Although most studies measure total CORT concentrations, levels of corticosteroid binding globulin (CBG) may also be modulated, thus altering the concentration of CORT available for diffusion into tissues (free CORT). We investigated the seasonal dynamics of CBG, total CORT, and ...
متن کاملFeather corticosterone reveals developmental stress in seabirds.
In nest-bound avian offspring, food shortages typically trigger a release of the stress hormone corticosterone (CORT). Recent studies indicate that CORT is passively deposited in the tissue of growing feathers and thus may provide an integrated measure of stress incurred during development in the nest. The current hypothesis predicts that, assuming a constant rate of feather growth, elevated CO...
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ژورنال
عنوان ژورنال: Functional Ecology
سال: 2015
ISSN: 0269-8463,1365-2435
DOI: 10.1111/1365-2435.12539