Dieldrin-induced mortality in an endangered species, the gray bat ( Myotis grisescens )

D. R. Clark; R. K. LaVal; D. M. Swineford

doi:10.1126/science.564550

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Dieldrin-induced mortality in an endangered species, the gray bat ( Myotis grisescens )

D. R. Clark·R. K. LaVal·D. M. Swineford

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Abstract

Brains of juvenile gray bats, Myotis grisescens , found dead beneath maternity roosts in two Missouri caves contained lethal concentrations of dieldrin. One colony appeared to be abnormally small, and more dead bats were found a year after the juvenile bats had been collected. This is the first report to link the field mortality of bats directly to insecticide residues acquired through the food chain.

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Source-reported bounding extent: 35.88741386269655° to 40.70844832434466° latitude; -95.67201888795358° to -89.38242282746947° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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D. R. Clark, R. K. LaVal, D. M. Swineford. 1978. Dieldrin-induced mortality in an endangered species, the gray bat ( Myotis grisescens ). https://doi.org/10.1126/science.564550

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