Steve A. Johnson

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BACKGROUND Contaminants have been implicated in declines of amphibians, a taxon with vital systems similar to those of humans. However, many chemicals have not been thoroughly tested on amphibians or do not directly kill them. OBJECTIVE Our goal in this study was to quantify amphibian responses to chlorothalonil, the most commonly used synthetic fungicide(More)
Movement patterns provide important insight into the habitat requirements of a species, including the type and amount of habitat necessary for survival and reproduction Knowledge of animal movement patterns can have important implications for management and conservation. For example, an understanding of the distances that amphibians move from wetlands into(More)
We assessed the validity of testing for antimicrobial susceptibility of clinical and mutant Neisseria gonorrhoeae (GC) isolates by disk diffusion in comparison to agar dilution, and Etest® (bioMerieux, France), respectively, for three third generation extended spectrum cephalosporins (ESC): ceftriaxone (CRO), cefixime (CFX), and cefpodoxime (CPD). One(More)
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