Synergism between UV-B radiation and a pathogen magnifies amphibian embryo mortality in nature.

AUTOR(ES)

Kiesecker, J M

RESUMO

Previous research has shown that amphibians have differential sensitivity to ultraviolet-B (UV-B) radiation. In some species, ambient levels of UV-B radiation cause embryonic mortality in nature. The detrimental effects of UV-B alone or with other agents may ultimately affect amphibians at the population level. Here, we experimentally demonstrate a synergistic effect between UV-B radiation and a pathogenic fungus in the field that increases the mortality of amphibian embryos compared with either factor alone. Studies investigating single factors for causes of amphibian egg mortality or population declines may not reveal the complex factors involved in declines.

Documentos Relacionados

• Ambient UV-B radiation causes deformities in amphibian embryos
• UV repair and resistance to solar UV-B in amphibian eggs: a link to population declines?
• Radiation levels of UV-A and UV-B on growth parameters and coumarin content in guaco
• Effect of Solar UV-B Radiation on a Phyllosphere Bacterial Community
• Marine Bacterial Isolates Display Diverse Responses to UV-B Radiation