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  • A. Blaustein, P. Hoffman, D. G. Hokit, J. Kiesecker, S. C. Walls, J. Hays
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences…
  • 1994 (First Publication: 1 March 1994)
  • The populations of many amphibian species, in widely scattered habitats, appear to be in severe decline; other amphibians show no such declines. There is no known single cause for the declines, butExpand