Abstract
Cutaneous bacterial communities can be crucial in modulating amphibian-pathogen interactions, but are highly sensitive to
environmental conditions. Many amphibians, in particular salamandrid newts, may inhabit aquatic or terrestrial habitats after
metamorphosis. These different conditions can alter the cutaneous bacterial communities of animals and so affect both the
susceptibility of individuals to disease and their potential to transmit pathogens to others. Furthermore, different environments
may influence the fitness of individuals through impacts on growth rates. I investigated the impact of aquatic and terrestrial
environments on the cutaneous bacterial communities and growth rates in the alpine newt (Icthyosaura alpestris). This species
is invasive in the UK and has been reported as carrier of amphibian pathogenic chytrid fungus. I show that aquatic animals,
although growing faster, present less diverse communities, lacking in species that inhibit Batrachochytrium dendrobatidis (Bd)
in vitro. My data suggest that aquatic and terrestrial phases in amphibians may influence their susceptibility to disease and I
suggest that this likely impacts the way in which pathogens, especially Bd, spread in the environment.
Publisher
British Herpetological Society
Subject
Nature and Landscape Conservation,Ecological Modeling,Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics
Cited by
2 articles.
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