Author： Johnson Lucinda B. Axler Richard P. Johnson Catherine M.
Publisher： NRC Research Press
ISSN： 1205-7533
Source： Canadian Journal of Fisheries and Aquatic Sciences, Vol.70, Iss.10, 2013-01, pp. : 1531-1541
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Abstract
Ultraviolet-B (UV-B) radiation exposure is one hypothesized mechanism explaining amphibian population declines and malformations, but it is rarely quantified in amphibian habitats. We measured spatial and temporal variations in northern vernal pools with UV-B attenuation through the water column, incident UV-B across pool surfaces and seasons, and cumulative UV-B dose. Atmospheric, local, and landscape effects were compared with variances across spatial and temporal scales, plus influence on exposure risk. Risk was evaluated using published reports on detrimental levels for amphibian survival and health, with life history and behavior of vernal pool breeding
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