Pesticide contamination and hatching success of waterbirds in Mississippi
Journal of Wildlife Management
By: D. H. White, W. J. Fleming, and K.L. Ensor
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Abstract
Waterfowl wintering on the Yazoo National Wildlife Refuge (NWR) were contaminated (ltoreq 4 ppm wet wt) with dichloro diphenyl trichloroethane (DDT) and 1,1-dichloro-2,2-bis-(p-chlorophenyl) ethylene (DDE), but residues were below levels known to affect waterfowl. Eggs of some nesting waterbirds contained higher than expected levels of DDE, especially those of green-backed herons (Butorides striatus), ranging up to 43 ppm wet weight. Hatching success (P lt 0.05) and eggshell thickness (P lt 0.05) in green-backed herons and anhingas (Anhinga anhinga) were negatively correlated with DDE in the eggs, and shell thinning (P lt 0.05) was evident 12-13 years after DDT was banned in the United States. The threshold level of DDE determined necessary for reduced hatching success in green-backed heron eggs was 5.1-10 ppm wet weight. These results further increase our ability to interpret DDE concentrations in waterbirds and predict their potential effects on productivity.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Pesticide contamination and hatching success of waterbirds in Mississippi |
| Series title | Journal of Wildlife Management |
| Volume | 52 |
| Issue | 4 |
| Year Published | 1988 |
| Language | English |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 724-729 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Wildlife Management |
| First page | 724 |
| Last page | 729 |
| Google Analytic Metrics | Metrics page |