EFFECTS OF ULTRAVIOLET RADIATION ON BOREAL TOADS IN COLORADO
1998; Wiley; Volume: 8; Issue: 1 Linguagem: Inglês
10.1890/1051-0761(1998)008[0018
ISSN1939-5582
Autores Tópico(s)Atmospheric Ozone and Climate
ResumoEcological ApplicationsVolume 8, Issue 1 p. 18-26 Article EFFECTS OF ULTRAVIOLET RADIATION ON BOREAL TOADS IN COLORADO Paul Stephen Corn, Paul Stephen Corn U.S. Geological Survey, Midcontinent Ecological Science Center, Fort Collins, Colorado 80525 USA, and Aldo Leopold Wilderness Research Institute, P.O. Box 8089, Missoula, Montana 59807 USA Send correspondence to this address.Search for more papers by this author Paul Stephen Corn, Paul Stephen Corn U.S. Geological Survey, Midcontinent Ecological Science Center, Fort Collins, Colorado 80525 USA, and Aldo Leopold Wilderness Research Institute, P.O. Box 8089, Missoula, Montana 59807 USA Send correspondence to this address.Search for more papers by this author First published: 01 February 1998 https://doi.org/10.1890/1051-0761(1998)008[0018:EOUROB]2.0.CO;2Citations: 46 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract Field exposures of Bufo boreas embryos to fractions of ambient UV-B radiation at two sites in Rocky Mountain National Park, Colorado, USA, were conducted to evaluate UV-B as a possible cause of recent severe declines of this species. There were no differences in hatching success of B. boreas embryos exposed to 0–100% of ambient UV-B radiation at either study site, results that are different from those of recent studies in Oregon that found increased mortality of B. boreas embryos exposed to ambient UV-B. The reasons for these differing results are not apparent, and several possible explanations exist, including differences in experimental design, presence or absence of a pathogenic fungus, and geographic genetic variation. Bufo boreas embryos were probably not receiving higher doses of UV-B radiation during the experiments in Oregon compared to the experiments in this study. Results of this study do not support UV-B radiation alone as the cause of the decline of B. boreas during the past 20 yr in the southern Rocky Mountains, but UV-B cannot be dismissed because of the contradictory results from other studies. Literature Cited Blaustein, A. R. 1994. Chicken little or Nero's fiddle. 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