Impacts of thermal mismatches on chytrid fungus Batrachochytrium dendrobatidis prevalence are moderated by life stage, body size, elevation and latitude
Persistent URL
Author(s)
Cohen, Jeremy M.
McMahon, Taegan A.
Ramsay, Chloe
Roznik, Elizabeth A.
Sauer, Erin L.
Bessler, Scott
Civitello, David J.
Delius, Bryan K.
Halstead, Neal
Knutie, Sarah A.
Nguyen, Karena H.
Ortega, Nicole
Sears, Brittany
Venesky, Matthew D.
Young, Suzanne
Rohr, Jason R.
Date Issued
February 28, 2019
Abstract
Global climate change is increasing the frequency of unpredictable weather conditions; however, it remains unclear how species‐level and geographic factors, including body size and latitude, moderate impacts of unusually warm or cool temperatures on disease. Because larger and lower‐latitude hosts generally have slower acclimation times than smaller and higher‐latitude hosts, we hypothesised that their disease susceptibility increases under ‘thermal mismatches’ or differences between baseline climate and the temperature during surveying for disease. Here, we examined how thermal mismatches interact with body size, life stage, habitat, latitude, elevation, phylogeny and International Union for Conservation of Nature (IUCN) conservation status to predict infection prevalence of the chytrid fungus Batrachochytrium dendrobatidis (Bd) in a global analysis of 32 291 amphibian hosts. As hypothesised, we found that the susceptibility of larger hosts and hosts from lower latitudes to Bd was influenced by thermal mismatches. Furthermore, hosts of conservation concern were more susceptible than others following thermal mismatches, suggesting that thermal mismatches might have contributed to recent amphibian declines.
Journal
Ecology Letters
Department
Biology
Citation
Cohen, J. M., McMahon, T. A., Ramsay, C. , Roznik, E. A., Sauer, E. L., Bessler, S. , Civitello, D. J., Delius, B. K., Halstead, N. , Knutie, S. A., Nguyen, K. H., Ortega, N. , Sears, B. , Venesky, M. D., Young, S. and Rohr, J. R. (2019), Impacts of thermal mismatches on chytrid fungus Batrachochytrium dendrobatidis prevalence are moderated by life stage, body size, elevation and latitude. Ecol Lett, 22: 817-825. doi:10.1111/ele.13239
Publisher
Wiley
Version of Article
Published article
DOI
10.1111/ele.13239
ISSN
1461-023X
1461-0248
Rights
Copyright © 1999-2019 John Wiley & Sons, Inc. All rights reserved
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