No latitudinal differences in adrenocortical stress response in wintering black-capped chickadees (Poecile atricapilla).

@article{Pravosudov2004NoLD,
  title={No latitudinal differences in adrenocortical stress response in wintering black-capped chickadees (Poecile atricapilla).},
  author={Vladimir V Pravosudov and Alexander Stanislav Kitaysky and John C Wingfield and Nicola S. Clayton},
  journal={Comparative biochemistry and physiology. Part A, Molecular & integrative physiology},
  year={2004},
  volume={137 1},
  pages={
          95-103
        }
}
Birds respond to deterioration in environmental conditions by elevating their corticosterone levels, which can enhance their survival. It is less clear if animals constantly living in energetically challenging environment show similar increases in adrenocortical function. Previous work has demonstrated that under controlled conditions black-capped chickadees (Poecile atricapilla) from northern latitudes cache more food and perform better on spatial memory tasks than their southern conspecifics… CONTINUE READING
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