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Factors affecting corticosteroid concentrations in yellow-bellied marmots.

Author information

1
Department of Systematics and Ecology, University of Kansas, Lawrence 66045-2106.

Abstract

1. Bound and total corticosteroid concentrations of yellow-bellied marmots (Marmota flaviventris) were lowest in May after emergence from hibernation and peaked in August prior to immergence. 2. Total corticosteroids were affected by age but not by sex or reproductive status. 3. There was no consistent relationship between measures of population density and concentrations of corticosteroids; when a significant relationship occurred, only 22-34% of the variation was explained. 4. Social status and social behavior were the major factors affecting corticosteroid concentrations.

PMID:
1673377
DOI:
10.1016/0300-9629(91)90576-x
[Indexed for MEDLINE]

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