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Climate forcing of an emerging pathogenic fungus across a montane multi-host community [Royal Society Open Science]

Keywords : climate change, chytridiomycosis, multi-host communities, epidemiology, mountain ecosystems, host × pathogen ×, environment interaction

par Frédéric Magné - publié le

Changes in the timings of seasonality as a result of anthropogenic climate change are predicted to occur over the coming decades. While this is expected to have widespread impacts on the dynamics of infectious disease through environmental forcing, empirical data are lacking. Here, we investigated whether seasonality, specifically the timing of spring ice-thaw, affected susceptibility to infection by the emerging pathogenic fungus Batrachochytrium dendrobatidis (Bd) across a montane community of amphibians that are suffering declines and extirpations as a consequence of this infection. We found a robust temporal association between the timing of the spring thaw and Bd infection in two host species, where we show that an early onset of spring forced high prevalences of infection.(...)

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