Differences in sensitivity to the fungal pathogen Batrachochytrium dendrobatidis among amphibian populations Public Deposited

http://ir.library.oregonstate.edu/concern/articles/cj82k920v

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article is copyrighted by Society for Conservation Biology and published by John Wiley & Sons, Inc. It can be found at:  http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291523-1739

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  • Contributing to the worldwide biodiversity crisis are emerging infectious diseases, which can lead to extirpations and extinctions of hosts. For example, the infectious fungal pathogen Batrachochytrium dendrobatidis (Bd) is associated with worldwide amphibian population declines and extinctions. Sensitivity to Bd varies with species, season, and life stage. However, there is little information on whether sensitivity to Bd differs among populations, which is essential for understanding Bd-infection dynamics and for formulating conservation strategies. We experimentally investigated intraspecific differences in host sensitivity to Bd across 10 populations of wood frogs (Lithobates sylvaticus) raised from eggs to metamorphosis. We exposed the post-metamorphic wood frogs to Bd and monitored survival for 30 days under controlled laboratory conditions. Populations differed in overall survival and mortality rate. Infection load also differed among populations but was not correlated with population differences in risk of mortality. Such population-level variation in sensitivity to Bd may result in reservoir populations that may be a source for the transmission of Bd to other sensitive populations or species. Alternatively, remnant populations that are less sensitive to Bd could serve as sources for recolonization after epidemic events.
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  • Bradley, P. W., Gervasi, S. S., Hua, J., Cothran, R. D., Relyea, R. A., Olson, D. H., & Blaustein, A. R. (2015). Differences in sensitivity to the fungal pathogen Batrachochytrium dendrobatidis among amphibian populations. Conservation Biology, 29(5), 1347-1356. doi:10.1111/cobi.12566
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2015-11-30T16:19:00Z (GMT) No. of bitstreams: 2 BradleyPaulEnvironmentalSciDifferencesSensitivityFungal.pdf: 850039 bytes, checksum: c3518af388b184b6684288157972a7f6 (MD5) BradleyPaulEnvironmentalSciDifferencesSensitivityFungalAppendixS1.pdf: 82226 bytes, checksum: 0beacdacae559924d73e6c83cc2de92b (MD5)
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2015-11-30T16:18:29Z No. of bitstreams: 2 BradleyPaulEnvironmentalSciDifferencesSensitivityFungal.pdf: 850039 bytes, checksum: c3518af388b184b6684288157972a7f6 (MD5) BradleyPaulEnvironmentalSciDifferencesSensitivityFungalAppendixS1.pdf: 82226 bytes, checksum: 0beacdacae559924d73e6c83cc2de92b (MD5)
  • description.provenance : Made available in DSpace on 2015-11-30T16:19:00Z (GMT). No. of bitstreams: 2 BradleyPaulEnvironmentalSciDifferencesSensitivityFungal.pdf: 850039 bytes, checksum: c3518af388b184b6684288157972a7f6 (MD5) BradleyPaulEnvironmentalSciDifferencesSensitivityFungalAppendixS1.pdf: 82226 bytes, checksum: 0beacdacae559924d73e6c83cc2de92b (MD5) Previous issue date: 2015-10

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