Declining amphibian populations: the problem of separating human impacts from natural fluctuations.

Cite this paper

@article{Pechmann1991DecliningAP, title={Declining amphibian populations: the problem of separating human impacts from natural fluctuations.}, author={Joseph H. K. Pechmann and David E. Scott and Raymond D. Semlitsch and Jonathan P Caldwell and Laurie J. Vitt and John W. Gibbons}, journal={Science}, year={1991}, volume={253 5022}, pages={892-5} }