The toxicity of p,p'-DDT to the clapper rail
Journal of Wildlife Management
By: A. Van Velzen and J.F. Kreitzer
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Abstract
The LC50 (concentration of toxicant in the diet expected to kill half of the test birds in 5 days) for p,p' -DDT in clapper rails (Rallus longirostris) was found to be 1,612 ppm for males and 1,896 ppm for females. Amounts of DDT + DDD in the brains of birds that died were significantly greater (P < 0.01) than those in the brains of survivors. Thirty ppm DDT + DDD approximated the lower limit of these compounds in the brains of rails diagnostic of death from DDT poisoning. Residues in livers and carcasses are reported. Considering the relatively high resistance of the clapper rail to DDT poisoning, we concluded that exposure to this pesticide in marshes is not likely to be a significant factor in mortality of adult rails. Effects other than direct mortality were not evaluated in this study.
Suggested Citation
Van Velzen, A., and Kreitzer, J., 1975, The toxicity of p,p'-DDT to the clapper rail: Journal of Wildlife Management, v. 39, no. 2, p. 305-309, https://doi.org/10.2307/3799907.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The toxicity of p,p'-DDT to the clapper rail |
| Series title | Journal of Wildlife Management |
| DOI | 10.2307/3799907 |
| Volume | 39 |
| Issue | 2 |
| Year Published | 1975 |
| Language | English |
| Publisher | Wiley |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 5 p. |
| First page | 305 |
| Last page | 309 |