Host species composition influences infection severity among amphibians in the absence of spillover transmission.

ABSTRACT: Wildlife epidemiological outcomes can depend strongly on the composition of an ecological community, particularly when multiple host species are affected by the same pathogen. However, the relationship between host species richness and disease risk can vary with community context and with the degree of spillover transmission that occurs among co-occurring host species. We examined the degree to which host species composition influences infection by Batrachochytrium dendrobatidis (Bd), a widespread fungal pathogen associated with amphibian population declines around the world, and whether transmission occurs from one highly susceptible host species to other co-occurring host species. By manipulating larval assemblages of three sympatric amphibian species in the laboratory, we characterized

SUBMITTER: Han BA 

PROVIDER: S-EPMC4395173 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature