Coping with extreme: highland Eurasian tree sparrows with molt-breeding overlap express higher levels of corticoserone-binding globulin than lowland sparrows.
作者： Dongming Li , Ji Zhang , Dan Liu , Li Zhang , Yonghong Hu
DOI: 10.1002/JEZ.1811
关键词:
摘要: In birds, suppressed expression of stress-induced corticosterone (CORT) during pre-basic molt is generally thought to reflect a physiological trade-off in self-maintenance. And reduced CORT breeding extreme environments may maximize reproductive success and optimize their fitness. Highland Eurasian tree sparrows (Passer montanus) are known express significantly higher levels the stage. Here, we show that these highland characterized by life history strategy molt-breeding overlap, with corticosterone-binding globulin (CBG) favoring consistent fitness optimization on Tibetan Plateau. These unique behavioral strategies natural selection under strong evolutionary pressures high-altitude environments. J. Exp. Zool. 319A: 482–486, 2013. © 2013 Wiley Periodicals, Inc.
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