Viral outbreak threatens the survival of amphibians

A viral outbreak is killing amphibians, including frogs, toads and salamanders, in the Picos de Europa National Park in Spain. As if the imminent local extinction of amphibians wasn’t grim enough in itself, their disappearance, scientists fear, could also tip the ecological balance in favour of species amphibians feed on.

A team of researchers from Spain and the United Kingdom started monitoring amphibians in the national park in 2005 when they first noticed a die-off from viral infection. The team is now the first to report two related, highly infectious viruses – the ranaviruses – simultaneously infecting multiple amphibian species at several locations in Spain.

Ranavirus infection is often associated with severe disease and mass deaths of amphibians but previously decline of only one amphibian species had been [quantified]. Here, we show three amphibian species showing simultaneous population collapses in the Picos National Park,” says Stephen J. Price, researcher at University College London and an author of the study published today in the journal Current Biology.

Read the rest of the article at Earth Touch.

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