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Body lipids and pesticide burdens of migrant blue-winged teal

Journal of Field Ornithology

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Abstract

Blue-winged Teal were collected before and after their migration to wintering grounds in Latin America. Pesticide burdens, body weights, and lipid levels of carcasses were determined. Only DDE and dieldrin were detected in a small proportion of the samples and then at concentrations far below known-effect levels. Residue loads, because of their infrequency, were not significantly correlated with overall body weight and percent lipid. Body weights among most age and sex classes did not differ in either fall or spring, nor did percent lipid in any instance. However, body weights and lipid levels were significantly correlated; as body weight increased so did percent lipid. Thus, the extreme variability in body weight appears to be a function of the amount of fat present and not overall body size, age, or sex.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Body lipids and pesticide burdens of migrant blue-winged teal
Series title:
Journal of Field Ornithology
Volume
52
Issue:
1
Year Published:
1981
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
23-28
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Field Ornithology
First page:
23
Last page:
28
Number of Pages:
6