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Body lipids and pesticide burdens of migrant blue-winged teal

January 1, 1981

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 Year 1981
Title Body lipids and pesticide burdens of migrant blue-winged teal
Authors D. H. White, K. A. King, C. A. Mitchell, A. J. Krynitsky
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Field Ornithology
Index ID 5221640
Record Source USGS Publications Warehouse
USGS Organization Patuxent Wildlife Research Center