Chytridiomycosis and Seasonal Mortality of Tropical Stream-Associated Frogs 15 Years after Introduction of Batrachochytrium dendrobatidis
Andrea D Phillott, Laura F Grogan, Scott D Cashins, Keith R Mcdonald, Lee Berger, Lee F Skerratt
CONSERVATION BIOLOGY | WILEY | Published : 2013
Assessing the effects of diseases on wildlife populations can be difficult in the absence of observed mortalities, but it is crucial for threat assessment and conservation. We performed an intensive capture-mark-recapture study across seasons and years to investigate the effect of chytridiomycosis on demographics in 2 populations of the threatened common mist frog (Litoria rheocola) in the lowland wet tropics of Queensland, Australia. Infection prevalence was the best predictor for apparent survival probability in adult males and varied widely with season (0-65%). Infection prevalence was highest in winter months when monthly survival probabilities were low (approximately 70%). Populations a..View full abstract
Awarded by Department of Environment Heritage
We thank H. Ricardo and volunteers for assistance in the field, S. Garland and R. Campbell for PCR testing, and B. Scheele for helpful comments on the manuscript. This study was conducted with approval by the James Cook University Animal Ethics Committee (certificate A970) and Queensland Environmental Protection Agency (fauna permit WISP033606305). The Department of Environment Heritage provided funding via the tender 42/2004, Experimental Research to Obtain a Better Understanding of the Epidemiology, Transmission and Dispersal of Amphibian Chytrid Fungus in Australian Ecosystems.