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Curr Biol. 2014 Nov 3;24(21):2586-91. doi: 10.1016/j.cub.2014.09.028. Epub 2014 Oct 16.

Collapse of amphibian communities due to an introduced Ranavirus.

Author information

1
Institute of Zoology, Zoological Society of London, Regents Park, London NW1 4RY, UK; The School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, UK. Electronic address: s.price@ucl.ac.uk.
2
Institute of Zoology, Zoological Society of London, Regents Park, London NW1 4RY, UK.
3
The School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, UK.
4
UCL Genetics Institute, University College London, Gower Street, London, WC1E 6BT, UK.
5
Asociación Herpetológica Española, José Gutiérrez Abascal 2, 28006 Madrid, Spain.
6
Parque Nacional Picos de Europa, Avenida Covadonga 43, 33550 Cangas de Onis, Asturias, Spain.
7
Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal 2, 28006 Madrid, Spain.

Abstract

The emergence of infectious diseases with a broad host range can have a dramatic impact on entire communities and has become one of the main threats to biodiversity. Here, we report the simultaneous exploitation of entire communities of potential hosts with associated severe declines following invasion by a novel viral pathogen. We found two phylogenetically related, highly virulent viruses (genus Ranavirus, family Iridoviridae) causing mass mortality in multiple, diverse amphibian hosts in northern Spain, as well as a third, relatively avirulent virus. We document host declines in multiple species at multiple sites in the region. Our work reveals a group of pathogens that seem to have preexisting capacity to infect and evade immunity in multiple diverse and novel hosts, and that are exerting massive impacts on host communities. This report provides an exceptional record of host population trends being tracked in real time following emergence of a wildlife disease and a striking example of a novel, generalist pathogen repeatedly crossing the species barrier with catastrophic consequences at the level of host communities.

PMID:
25438946
DOI:
10.1016/j.cub.2014.09.028
[Indexed for MEDLINE]
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