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Journal Article

Responses of Small Mammals and Habitat to Glyphosate Application on Clearcuts

David J. Santillo, David M. Leslie, Jr. and Patrick W. Brown
The Journal of Wildlife Management
Vol. 53, No. 1 (Jan., 1989), pp. 164-172
Published by: Wiley on behalf of the Wildlife Society
DOI: 10.2307/3801324
Stable URL: http://www.jstor.org/stable/3801324
Page Count: 9
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Responses of Small Mammals and Habitat to Glyphosate Application on Clearcuts
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Abstract

We investigated effects of herbicide-induced habitat changes on small mammals in clearcuts in northcentral Maine. Fewer small mammals were captured on glyphosate (nitrogen-phosphonomethyl glycine) (Roundup, Monsanto, St. Louis, Mo.)-treated clearcuts 1-3 years post-treatment compared to untreated clearcuts. Insectivores (Soricidae) comprised 72% of small mammal captures and were less abundant (P < 0.001) for all 3 years post-treatment. Herbivores (Microtinae) were less abundant 1 (P < 0.01) and 2 years (P < 0.001) post-treatment. Omnivores (Cricetinae and Zapodidae) were equally abundant on treated and untreated clearcuts. Differences in small mammal abundance paralleled herbicide-induced reductions in invertebrates and plant food and cover. Patches of untreated vegetation within herbicide-treated clearcuts provided a source of invertebrates and plant food and cover.

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