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Background Global warming caused trophic mismatch has affected the breeding success, and even the survival, of some bird species. The ability of birds to accelerate their reproduction onset in the warmer spring could be critical to the survival of some species. The activation of the reproductive endocrine axis in birds is a key physiological process that determines the onset of reproduction. Could...
Daily variation in ambient temperature is marked during the spring at middle and high latitudes, when birds have to physiologically prepare for the subsequent breeding period. The ability of birds to maintain homeostasis during this period is important to survival and reproduction. We compared levels of the apoptotic proteins Caspase-3 and B cell lymphoma 2 (Bcl-2) and of the stress response heat...
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