The effects of the amphibian chytrid fungus, insecticide exposure, and temperature on larval anuran development and survival

Authors: S L Rumschlag; Michelle D Boone; Gary M Fellers
Contribution Number: 413

onlinelibrary.wiley.com/doi/10.1002/etc.2707/abstract?campaign=woletoc

Abstract/Summary

Chytridiomycosis, a disease caused by Batrachochytrium dendrobatidis (Bd), has been implicated as a cause of amphibian declines. Susceptibility may be influenced by environmental factors that suppress the immune response. The authors conducted a laboratory study to examine the effect of temperature, insecticide exposure, and Bd exposure during larval anuran development. The authors examined the consequences of exposure to Bd, an insecticide (carbaryl or malathion), and static or fluctuating temperature (15 °C, 20 °C, 25 °C, or 15 °C to 25 °C 72-h flux) on larval development through metamorphosis of the Pacific treefrog (Pseudacris regilla). High and fluctuating temperature had negative effects on survival in the presence of Bd. Insecticides inhibited the effects of Bd; time to tail resorption of Pacific treefrogs decreased when tadpoles were exposed to carbaryl.

Publication details
Published Date: 2014-10
Outlet/Publisher: Environmental Toxicology and Chemistry 33:2545-2550
Media Format: .PDF

ARMI Organizational Units:
Southwest, Northern California - Biology
Topics:
Disease; Stressors
Place Names:
California
Keywords:
amphibians; chytrid fungus; disease; pesticides; stressors
Notice: PDF documents require Adobe Reader or Google Chrome Browser (recommended) for viewing.