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Declining Amphibian Populations: The Problem of Separating Human Impacts from Natural Fluctuations
Abstract
Reports of declining amphibian populations in many parts of the world are numerous, but supporting long-term census data are generally unavailable. Census data from 1979 to 1990 for three salamander species and one frog species at a breeding pond in South Carolina showed fluctuations of substantial magnitude in both the size of breeding populations and in recruitment of juveniles. Breeding population sizes exhibited no overall trend in three species and increased in the fourth. Recent droughts account satisfactorily for an increase in recruitment failures. These data illustrate that to distinguish between natural population fluctuations and declines with anthropogenic causes may require long-term studies.
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Cited by
Amphibian and reptile declines over 35 years at La Selva, Costa Rica
Whitfield, S. M., Bell, K. E., Philippi, T., Sasa, M., Bolaños, F., Chaves, G., Savage, J. M., & Donnelly, M. A. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0611256104 · Cited by 355
A resistant-kernel model of connectivity for amphibians that breed in vernal pools
COMPTON, B. W., McGARIGAL, K., CUSHMAN, S. A., & GAMBLE, L. R. (2007) · Conservation Biology · doi:10.1111/j.1523-1739.2007.00674.x · Cited by 283
Amphibian Movements in Response to Forest Edges, Roads, and Streambeds in Southern New England
Gibbs, J. P. (1998) · The Journal of Wildlife Management · doi:10.2307/3802333 · Cited by 213
Tests of Null Models for Amphibian Declines on a Tropical Mountain
Pounds, J. A., Fogden, M. P. L., Savage, J. M., & Gorman, G. C. (1997) · Conservation Biology · doi:10.1046/j.1523-1739.1997.95485.x · Cited by 192
Global amphibian declines: a perspective from the Caribbean
Blair Hedges, S. (1993) · Biodiversity and Conservation · doi:10.1007/bf00056674 · Cited by 44
Metadata
- Authors
- Pechmann, J. H. K., Scott, D. E., Semlitsch, R. D., Caldwell, J. P., Vitt, L. J., & Gibbons, J. W.
- Venue
- Science
- Published
- 1991-08-23
- Volume
- 253
- Issue
- 5022
- Pages
- 892-895
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1964157041
- Cited by
- 741
- References
- 1
- FWCI
- 28.18
- Type
- journal article
- Language
- en
- Open access
- closed
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- Pechmann, J. H. K., Scott, D. E., Semlitsch, R. D., Caldwell, J. P., Vitt, L. J., & Gibbons, J. W. (1991). Declining Amphibian Populations: The Problem of Separating Human Impacts from Natural Fluctuations. Science. https://doi.org/10.1126/science.253.5022.892
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
