Bird Hormones and Bird Migrations

Edited by Edited by Wolfgang Goymann (Max Planck Institute for Ornithology, Andechs, Germany), Susanne Jenni-Eiermann (Swiss Ornithological Institute, Sempach, Switzerland), and Ulf Bauchinger (University of Munich, Munich, Germany)
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Bird Hormones and Bird Migrations

Published: June 2005

Volume 1046

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The analysis of hormones in feces or excrement presented in the first part of this volume is a relatively new noninvasive method for gaining insight into an animal's physiology. Endocrinological cycles of free-living animals can be studied without the stress caused by capture. Hence, this noninvasive technique may be helpful in a wide range of research fields relating to physiology, behavioral ecology, ethnology, and wildlife conservation. The reports presented in the second part of the volume expand the general understanding of migration over long distances. Three key issues in the search for adaptive syndromes are addressed: acquisition and use of endogenous resources, circadian rhythms, and adaptations in metabolism. The results of these two meetings are timely and important because environments are rapidly changing and we need the means to study the impact of these changes on the physiology of animals who are responding to these changes.