Benefits and costs of increased levels of corticosterone in seabird chicks
Abstract
Seabird chicks respond to food shortages by increasing corticosterone (cort) secretion, which is probably associated with fitness benefits and costs. To examine this, we experimentally increased levels of circulating cort in captive black-legged kittiwake chicks fed ad libitum. We found that cort-implanted chicks begged more frequently and were more aggressive compared to controls. These behavioral modifications must be beneficial to chicks as...
Paper Details
Title
Benefits and costs of increased levels of corticosterone in seabird chicks
Published Date
Jan 1, 2003
Journal
Volume
43
Issue
1
Pages
140 - 149
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