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Short-term oscillations in avian molt intensity: evidence from the golden eagle Aquila chrysaetos

Journal of Avian Biology

Acknowledgements: Data gathering was financed by the Patuxent Wildlife Research Center. Greg Depner and Joel Scrafford provided the eagle. Kery?s work was financed under grant 81ZH-64044, Swiss National Science Foundation. doi:10.1111/j.0908-8857.2006.03756.x 6626_Ellis.pdf
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Abstract

From a year-long study of molt in the golden eagle Aquila chrysaetos, we recorded 2069 contour feathers replaced in 137 d (6 May-19 September). Very few contour feathers were lost outside this period. From precise daily counts of feathers lost, and using time series analysis, we identified short-term fluctuations (i.e., 19-d subcycles) around a midsummer peak (i.e., a left-skewed normal distribution). Because these subcycles have never before been reported and because the physiological basis for many aspects of avian molt is poorly known, we offer only hypothetical explanations for the controls responsible for the subcycles.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Short-term oscillations in avian molt intensity: evidence from the golden eagle Aquila chrysaetos
Series title:
Journal of Avian Biology
Volume
37
Year Published:
2006
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
642-644
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
642
Last page:
644
Number of Pages:
3