Supplementary material from "Fragile co-existence of a global chytrid pathogen with amphibian populations is mediated by environment and demography"

Published on 2017-09-14T14:22:58Z (GMT) by
Unravelling the multiple interacting drivers of host–pathogen co-existence is crucial in understanding how an apparently stable state of endemism may shift towards an epidemic and lead to biodiversity loss. Here, we investigate the apparent co-existence of the global amphibian pathogen <i>Batrachochytrium dendrobatidis</i> (Bd) with <i>Bombina variegata</i> populations in the Netherlands over a 7-year period. We used a multi-season mark-recapture dataset and assessed potential drivers of co-existence (individual condition, environmental mediation and demographic compensation) at the individual and population level. We show that even in a situation with a clear cost incurred by endemic Bd, population sizes remain largely stable. Current environmental conditions and an over-dispersed pathogen load likely stabilize disease dynamics, but as higher temperatures increase infection probability, changing environmental conditions, for example a climate change-driven rise in temperature, could unbalance the current fragile host–pathogen equilibrium. Understanding the proximate mechanisms of such environmental mediation and of site-specific differences in infection dynamics can provide vital information for mitigation actions.

Cite this collection

der Sluijs, Annemarieke Spitzen-van; Canessa, Stefano; Martel, An; Pasmans, Frank (2017): Supplementary material from "Fragile co-existence of a global chytrid pathogen with amphibian populations is mediated by environment and demography". The Royal Society.

https://doi.org/10.6084/m9.figshare.c.3879733.v1

Retrieved: 03:09, Nov 19, 2017 (GMT)