Abstract
Previous research has shown that amphibian species have differential sensitivity to ultraviolet‐B (UV‐B) radiation. In some anuran species, ambient levels of UV‐B cause mortality in embryonic stages and hatching success is significantly reduced. Projected increases in UV‐B may affect an increasing number of species. The adverse effects of UV‐B may eventually be manifested at the population level and may ultimately contribute to population declines. Using field experiments, we investigated the effects of ambient UV‐B on salamander (Ambystoma gracile) embryos developing at natural oviposition sites. We show that the hatching success of eggs of A. gracile shielded from UV‐B is significantly higher than those not shielded from UV‐B.
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