TitleEffects of UV-B radiation on anti-predator behavior in three species of amphibians
Publication TypeJournal Article
Year of Publication2000
AuthorsKats, LB, Kiesecker, JM, Chivers, DP, Blaustein, AR
JournalEthology
Volume106
Pagination921-931
Type of ArticleJournal Article
ISSN0179-1613
Abstract

Ultraviolet radiation has been suggested as a possible contributing cause of amphibian declines around the world. Both laboratory and field studies have demonstrated that exposure to ultraviolet radiation can lead to increased mortality of developing amphibians. Virtually no studies have examined the sub-lethal effects of ultraviolet on amphibian behavior. In this study, we examine the antipredator behavior of three species of amphibians after short-term exposure to ultraviolet-B radiation. Toad (Bufo boreas) juveniles that had been exposed to ultraviolet radiation did not respond to chemical extracts from conspecifics and heterospecifics as much as juveniles that had not been exposed. Both newt larvae (Taricha granulosa) that had been exposed to ultraviolet radiation and those that had not been exposed responded to chemical cues from conspecific predators by increasing the amount of time spent in shelter. Frog tadpoles (Rana cascadae) that had been exposed to ultraviolet radiation did not reduce their movement in response to chemical cues from predators as much as tadpoles that had not been exposed. These results indicate that ultraviolet exposure may have important sublethal effects in amphibians that could adversely effect their fitness.

URL<Go to ISI>://WOS:000089994100005
DOI10.1046/j.1439-0310.2000.00608.x