Frog and Toad Habitat Occupancy across a Polychlorinated Biphenyl (PCB) Contamination Gradient

  title={Frog and Toad Habitat Occupancy across a Polychlorinated Biphenyl (PCB) Contamination Gradient},
  author={James P. Gibbs and Shahrokh Rouhani and Leyla Shams},
  journal={Journal of Herpetology},
  pages={209 - 214}
Abstract A major challenge in amphibian ecotoxicology is understanding the population-level implications of laboratory-based, dose-response studies. We contrasted habitat occupancy among five species of frogs and toads in two adjacent segments of the upper Hudson River—one heavily contaminated by polychlorinated biphenyls (PCBs, compounds reported to have adverse impacts on individual amphibians) and the other uncontaminated—while controlling for site and sampling covariates. Site occupancy was… 
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