Dieldrin and heptachlor residues in dead gray bats, Franklin County, Missouri--1976 versus 1977
Pesticides Monitoring Journal
By: D. R. Clark Jr., R. K. LaVal, and A. J. Krynitsky
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Abstract
Lethal dieldrin concentrations were found in the brains of dead gray bats (Myotis grisescens) collected during 1976 and 1977 beneath a maternity roost in a Missouri cave. In addition, residues of heptachlor epoxide, oxychlordane, cis-chlordane, and trans-nonachlor increased significantly in both brains and carcasses of bats collected during 1977. These increases appear to reflect a switch by local farmers from aldrin, dieldrin's parent compound, to heptachlor for the control of cutworms. They also constitute an additional threat to this colony of this endangered bat species.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Dieldrin and heptachlor residues in dead gray bats, Franklin County, Missouri--1976 versus 1977 |
| Series title | Pesticides Monitoring Journal |
| Volume | 13 |
| Issue | 4 |
| Year Published | 1980 |
| Language | English |
| Publisher | Federal Committee on Pest Control |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 4 p. |
| First page | 137 |
| Last page | 140 |