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Effects of the Herbicide Atrazine on Ambystoma tigrinum Metamorphosis: Duration, Larval Growth, and Hormonal Response


We thank P. Anderson, R. Bennett, K. Frietag, S. Gebauer, and L. Murphy for help with field collections; K. Buhl, A. Bullard, T. Christenson, T. Courtney, M. Ehlers, K. Faerber, C. Jones, J. Merritt, S. Muehlbeier, B. Peterson, and T. Sternhagen for assistance with laboratory procedures and animal care; and D. Johnson for advice on the analysis. R. Cox, M. Lannoo, and J. Austin provided valuable comments on earlier versions of the manuscript. This research was cosponsored by the U.S. Environmental Protection Agency through Interagency Agreement (reference no DW14935541-0), the U.S. Fish and Wildlife Service (reference no. 14-48-0009-92-1929), and Northern Prairie Wildlife Research Center.
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