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Evolutionary ecology of host competence after a chytrid outbreak in a naive amphibian community. | LitMetric

Evolutionary ecology of host competence after a chytrid outbreak in a naive amphibian community.

Philos Trans R Soc Lond B Biol Sci

Department of Integrative Biology, College of Natural Sciences, The University of Texas, Austin, TX 78712, USA.

Published: July 2023

AI Article Synopsis

Article Abstract

Naive multi-host communities include species that may differentially maintain, transmit and amplify novel pathogens; therefore, we expect species to fill distinct roles during infectious disease emergence. Characterizing these roles in wildlife communities is challenging because most disease emergence events are unpredictable. Here, we used field-collected data to investigate how species-specific attributes influenced the degree of exposure, probability of infection, and pathogen intensity, during the emergence of the fungal pathogen () in a highly diverse tropical amphibian community. Our findings confirmed that ecological traits commonly evaluated as correlates of decline were positively associated with infection prevalence and intensity at the species level during the outbreak. We identified key hosts that disproportionally contributed to transmission dynamics in this community and found a signature of phylogenetic history in disease responses associated with increased pathogen exposure via shared life-history traits. Our findings establish a framework that could be applied in conservation efforts to identify key species driving disease dynamics under enzootics before reintroducing amphibians back into their original communities. Reintroductions of supersensitive hosts that are unable to overcome infections will limit the success of conservation programmes by amplifying the disease at the community level. This article is part of the theme issue 'Amphibian immunity: stress, disease and ecoimmunology'.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10258670PMC
http://dx.doi.org/10.1098/rstb.2022.0130DOI Listing

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