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American Zoologist 1998 38(6):799-812; doi:10.1093/icb/38.6.799
© 1998 by The Society for Integrative and Comparative Biology
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Effects of Ultraviolet Radiation on Amphibians: Field Experiments1

ANDREW R. BLAUSTEIN*,2, JOSEPH M. KIESECKER{dagger}, DOUGLAS P. CHIVERS{ddagger}, D. GRANT HOKIT§, ADOLFO MARCO, LISA K. BELDEN* and AUDREY HATCH*
*Department of Zoology 3029 Cordley Hall, Oregon State University, Corvallis, Oregon 97331-2914
{dagger}School of Forestry and Environmental Studies, Yale University 370 Prospect St., New Haven, Connecticut 06511
{ddagger}Department of Biological Sciences 5751 Murray Hall, University of Maine, Orono, Maine 04469
§Department of Biology, Carroll College Helena, Montana 59625
Departamento de Biologia Animal, Universidad de Salamanca 37071, Salamanca, Spain

Correspondence: 2E-mail: blaustea{at}bcc.orst.edu

SYNOPSIS. Numerous reports suggest that populations of amphibians from a wide variety of locations are experiencing population declines and/or range reductions. In some cases, unusually high egg mortality has been reported. Field experiments have been used with increasing frequency to investigate ultraviolet radiation as one of the potential factors contributing to these declines. Results from field experiments illustrate that hatching success of eggs is hampered by ultraviolet radiation in a number of species, while other species appear to be unaffected. Continued mortality in early life-history stages may ultimately contribute to a population decline. Although UV-B radiation may not contribute to the population declines of all species, it may play a role in the population decline of some species, especially those that lay eggs in open shallow water subjected to solar radiation and in those that have a poor ability to repair UV-induced DNA damage.


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