Prehistoric frogs face extinction

May 20, 2010

The world's most ancient frogs may soon be mined to extinction, if the New Zealand government's plans to open up a conservation area for mining go ahead.

The primitive Archey's (Leiopelma archeyi) and Hochstetter's frog (Leiopelma hochstetteri) are two of the species that inhabit the area of 'high value' on New Zealand's North Island where the mining is planned to take place.

Archey's frog is currently ranked top of the Zoological Society of London's (ZSL) EDGE of Existence list, making it the most evolutionarily distinct and globally endangered amphibian on the planet. Described as a "living fossil", Archey's frog is almost indistinguishable from the fossilised remains of frogs that walked amongst the dinosaurs 150 million years ago.

"In the year when reducing biodiversity loss is high on the political agenda, it is inconceivable to think that we'd put the nail in the coffin of some of our rarest and most extraordinary ," say Helen Meredith, EDGE of Existence amphibian conservation projects coordinator at ZSL.

She adds: "We will be faced with these kinds of decisions again and again in the future. Now is the time to start recognising the long-term value of our natural world over any short-term economic gains."

The frog populations have been intensively monitored for over 40yrs, representing the best data set on frog populations in the world. The proposed mining will cut through the heart of these monitoring sites.

Dr Phil Bishop, leader of the University of Otago's frog research says "Only four species of frog survive in New Zealand, and this proposed mining activity could cause the extinction of one of New Zealand's native amphibians, and a severe decline in another - a devastating blow to global amphibian conservation."

7,000 hectares of land in the West Coast's Paparoa National Park, Great Barrier Island and the Coromandel Peninsula has been proposed to be considered for mining of coal, gold, iron ore and other rare minerals.

The North Island brown kiwi, long-tailed bats, striped geckos and Helm's butterfly are some of the other rare and endangered species found in these protected areas.

The New Zealand government is now holding a public consultation on whether the conservation status of the area should be downgraded to allow mining to take place. The closing date for submissions is Thursday, 26 May: www.med.govt.nz/Schedule4

Explore further: Sagebrush ecosystem recovery hobbled by loss of soil complexity at development sites

Provided by Zoological Society of London

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