Pesticide contamination of endangered gray bats and their food base in Boone County, Missouri, 1982
Bulletin of Environmental Contamination and Toxicology
By: R.L. Clawson and D. R. Clark Jr.
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Abstract
Gray bat guano from Devil's Icebox and Hunters Caves contained dieldrin at levels previously associated with gray bat mortality. Two of four gray bats found dead in Holton Cave had lethal brain concentrations of dieldrin. Twenty-five of 28 (86%) insect samples from bat foraging areas contained measurable dieldrin, heptachlor epoxide or both. Beetle samples were most heavily contaminated containing up to 2.2 ppm and 1.1 ppm heptachlor epoxide. The addition of Holton Cave brings to five the number of Missouri caves where gray bats have died of food chain pesticide poisoning.
Suggested Citation
Clawson, R., and Clark, D.R., 1989, Pesticide contamination of endangered gray bats and their food base in Boone County, Missouri, 1982: Bulletin of Environmental Contamination and Toxicology, v. 42, no. 3, p. 431-437, https://doi.org/10.1007/BF01699972.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Pesticide contamination of endangered gray bats and their food base in Boone County, Missouri, 1982 |
| Series title | Bulletin of Environmental Contamination and Toxicology |
| DOI | 10.1007/BF01699972 |
| Volume | 42 |
| Issue | 3 |
| Year Published | 1989 |
| Language | English |
| Publisher | Springer |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 7 p. |
| First page | 431 |
| Last page | 437 |
| Country | United States |
| State | Missouri |
| County | Boone County |