Body lipids and pesticide burdens of migrant blue-winged teal
Journal of Field Ornithology
By: Donald H. White, Kirk A. King, C. A. Mitchell, and A. J. Krynitsky
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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.
| 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 |
| Google Analytic Metrics | Metrics page |