2019
DOI: 10.1111/1365-2435.13427
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Behavioural fever reduces ranaviral infection in toads

Abstract: Host behaviour is known to influence disease dynamics. Additionally, hosts often change their behaviours in response to pathogen detection to resist and avoid disease. The capacity of wildlife populations to respond to pathogens using behavioural plasticity is critical for reducing the impacts of disease outbreaks. However, there is limited information regarding the ability of ectothermic vertebrates to resist diseases via behavioural plasticity. Here, we experimentally examine the effect of host behaviour on … Show more

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Cited by 26 publications
(25 citation statements)
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“…Specifically, although bacterial and viral agents have been shown to induce fever in amphibians (e.g. Kluger, 1977;Sherman et al, 1991;Sauer et al, 2019), there is no conclusive evidence that fungal pathogens such as chytrids do so as well (Sauer et al, 2018, current study). Previous reports of behavioural fever in context to chytridiomycosis outbreaks (e.g.…”
Section: Thermal Infection Experimentsmentioning
confidence: 72%
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“…Specifically, although bacterial and viral agents have been shown to induce fever in amphibians (e.g. Kluger, 1977;Sherman et al, 1991;Sauer et al, 2019), there is no conclusive evidence that fungal pathogens such as chytrids do so as well (Sauer et al, 2018, current study). Previous reports of behavioural fever in context to chytridiomycosis outbreaks (e.g.…”
Section: Thermal Infection Experimentsmentioning
confidence: 72%
“…Amphibian thermal responses to pathogen exposure may not be linear, but instead peak for a short time (Sauer et al ., 2019) while considerable individual variation in thermal preferences may exist (Sauer et al ., 2018). To account for uncertainty in the timing and duration of a potential response to Bsal, we compared body temperatures between treatments over time using Generalised Additive Mixed Models (GAMMs, Appendix ).…”
Section: Methodsmentioning
confidence: 99%
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“…Small-scale microhabitat manipulation to create warm patches therefore comprises a potentially effective mitigation action against Bd (for warmadapted hosts), and possibly other amphibian diseases. For example, southern toads (Anaxyrus terrestris) provided with thermal gradients were able to decrease ranaviral load by adjusting temperature preference to achieve behavioral fever (Sauer et al 2019).…”
Section: Discussionmentioning
confidence: 99%
“…For amphibian populations, these shifts to warmer thermal refugia can result in spatial distributions shifts, such as the case with L. lorica (Puschendorf et al, 2011). Additionally, in the case of the amphibian B. dendrobatidis (Woodhams et al, 2003;Richards-Zawacki, 2010) and ranavirus (Sauer et al, 2019), amphibians have been documented as inducing a "behavioral fever" to elevate body temperature and cure infections. Townsend et al (2020) summarizes several examples (including human) of changing behaviors from socialdistancing of diseased individuals or groups (or individuals that are perceived to be diseased) to increased sociality to dilute the potential infection rates.…”
Section: Phenotypic Plasticitymentioning
confidence: 99%