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Levels of fecal corticosterone in sandhill cranes during a human-led migration

Journal of Wildlife Diseases

6195_Hartup.pdf
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Abstract

Fourteen captive-reared greater sandhill cranes (Grus canadensis tabida) were conditioned to follow ultralight aircraft to promote migration between Wisconsin and Florida (U SA) after release. Fecal samples were collected throughout the training period in Wisconsin and during a 1,977-km human-led migration to Florida to determine fecal corticosterone (FC) concentrations by radioimmunoassay. The mean (?SE) FC concentration during the training period was 1O9.5?7.5 ng/g and was representative of baseline levels recorded previously from sandhill cranes. Fecal corticosterone concentrations increased in early migration compared to concentrations 1 mo prior to departure (P<0.01) but were not different from baseline concentrations at the end of the 6-wk migration period. The variability of FC concentrations in individual samples was greater throughout the migration than the training period. Increases in FC during migration were modest and generally consistent with normal corticosterone elevations observed in migrating birds.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Levels of fecal corticosterone in sandhill cranes during a human-led migration
Series title:
Journal of Wildlife Diseases
Volume
40
Issue:
2
Year Published:
2004
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
267-272
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
267
Last page:
272
Number of Pages:
6