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"Extinct" Amphibians Rediscovered After Decades Lost to Science

Greatwtehunter

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Scientists on a global quest to rediscover "lost" amphibian species have returned from their first set of expeditions having rediscovered three species that had not been seen for decades, Conservation International (CI) and the IUCN Amphibian Specialist Group (ASG) announced today.

Searches are continuing around the globe for 100 species of amphibians that had been thought to have gone extinct, but that scientists believe may be surviving in small populations. While the discoveries are a cause for celebration as the world prepares for the Convention on Biological Diversity (CBD) that will be held in Nagoya, Japan next month, they also highlight the shocking decline in the world's amphibian species in recent decades, with more than a third of all amphibians threatened with extinction.
The three animals that have been rediscovered so far include a Mexican salamander not seen since it was discovered in 1941, a frog from the Ivory Coast not seen since 1967 and another frog from Democratic Republic of Congo not seen since 1979.

Dr. Robin Moore, who has organized the Search for the Lost Frogs for CI and the ASG said: "These are fantastic finds and could have important implications for people as well as for amphibians. We don't know whether study of these animals could provide new medicinal compounds – as other amphibians have, and at least one of these animals lives in an area that is important to protect as it provides drinking water to urban areas. But these rediscovered animals are the lucky ones – many other species we have been looking for have probably gone for good."

The rediscovered animals are:

Cave Splayfoot Salamander (Chiropterotriton mosaueri)
Hidalgo Province, Mexico.

Not seen since the discovery of a single individual in 1941. Pink footed, brown salamander that is believed to live underground in cave systems. Several were found by scientist Sean Rovito from the Universidad Nacional Autonoma de Mexico, in a cave system which is only accessible by abseiling down a large pothole.

Mount Nimba Reed Frog (Hyperolius nimbae)
Ivory Coast
Last Seen in 1967. Small and well camouflaged brown frog rediscovered by local scientist N'Goran Kouame from the University of Abobo-Adjame.

Omaniundu Reed Frog (Hyperolius sankuruensis)
Democratic Republic of Congo
Last seen in 1979. Beautiful frog with bright green – almost fluorescent looking – spots on a dark brown background. Rediscovered by Jos Kielgast from The Natural History Museum of Denmark.

The full press release and pictures can be found here.
 

Molch

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the second lil' reed frog is especially beautiful....
 

FrogEyes

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Unfortunately, there's a distinctive media spin put on these discoveries, which masks a reality which may be far more harsh.

All three species were simply poorly known to begin with. Their rediscovery simply required a concerted search at or near their their type localities, something which had apparently NOT been done until now.

Compare to other species on the "wanted" list, species whose range and habitat were well-known, and which could sometimes be encountered by the hundreds:
Pelobates syriacus
Lithobates fisheri
Atelopus - many species
Rheobatrachus silus
Rheobatrachus vitellinus
Rhinoderma rufum
Hypselotriton wolterstorffi

Not trumpeted have been the rediscovery of Lithobates onca and the rediscoveries of several species of Atelopus, all of which had disappeared. These were not, however, part of the program above.

Few salamanders I can think of have been lacking in follow-up records, though the following spring to mind:
Plethodon ainsworthi
Hynobius turkestanicus
Probably a number of bolitoglossines
Pseudoeurycea bellii sierraoccidentalis in Arizona
Eurycea robusta
 

ghostsaw

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All I can think about is ...wow that must be some big pothole..hate to hit that one with my car.
 
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