Identifying species conservation strategies to reduce disease-associated declines

Conservation Letters
By: , and 

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Abstract

Emerging infectious diseases (EIDs) are a salient threat to many animal taxa, causing local and global extinctions, altering communities and ecosystem function. The EID chytridiomycosis is a prominent driver of amphibian declines, which is caused by the fungal pathogen Batrachochytrium dendrobatidis (Bd). To guide conservation policy, we developed a predictive decision-analytic model that combines empirical knowledge of host-pathogen metapopulation dynamics with expert judgment regarding effects of management actions, to select from potential conservation strategies. We apply our approach to a boreal toad (Anaxyrus boreas boreas) and Bd system, identifying optimal strategies that balance tradeoffs in maximizing toad population persistence and landscape-level distribution, while considering costs. The most robust strategy is expected to reduce the decline of toad breeding sites from 53% to 21% over 50 years. Our findings are incorporated into management policy to guide conservation planning. Our online modeling application provides a template for managers of other systems challenged by EIDs.

Suggested Citation

Gerber, B.D., Converse, S.J., Muths, E.L., Crockett, H.J., Mosher, B.A., Bailey, L., 2018, Identifying species conservation strategies to reduce disease-associated declines: Conservation Letters, v. 11, no. 2, p. 1-10, https://doi.org/10.1111/conl.12393.

Publication type Article
Publication Subtype Journal Article
Title Identifying species conservation strategies to reduce disease-associated declines
Series title Conservation Letters
DOI 10.1111/conl.12393
Volume 11
Issue 2
Publication Date July 31, 2017
Year Published 2018
Language English
Publisher Society for Conservation Biology
Contributing office(s) Coop Res Unit Seattle
Description e12393; 10 p.
First page 1
Last page 10
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