Shrew thought to have been extinct for over two centuries photographed in the Nilgiris

A accidental photographic grounds of a shrew taxon successful the Nilgiris, which was thought to person been extinct, has stoked enthusiasm among section wildlife biologists successful trying to “rediscover” the species.

The Sonnerat’s shrew (Diplomesodon sonnerati) was described successful 1813 adjacent Puducherry by French naturalist Pierre Sonnerat. So far, nary specimen of the taxon has ever been collected; lone Pierre  Sonnerat’s description of the taxon attests to its existence.

On October 1, 2022, wildlife biologists and researchers moving successful the Nilgiris photographed a dormant shrew adjacent the Ooty Lake in Udhagamandalam. It was morphologically distant from the different shrew taxon encountered successful the region, specified arsenic the Asian highland shrew, the Asian location shrew, the Indian highland shrew, and the Kelaart’s long-clawed shrew.

“The idiosyncratic exhibited silky grey fur with a transverse achromatic set crossed the mid-body and a stout, stubby process accordant with the statement of a female D. sonnerati,” said authors N. Moinudheen, A. Samson, M. Shahir, A. Abinesh, and R. Brawin Kumar. Their grounds was published successful the open-access, adjacent reviewed technological journal Iranian Journal of Animal Biosystematics. It was titled, “Rediscovery of an ‘extinct’ endemic mammal Sonnerat’s Shrew in Nilgiris, Tamil Nadu.”

The researchers shared images of the shrew with experts similar Anthony Cheke, who successful crook sought adept sentiment from Paula Jenkins of the Natural History Museum successful London. Both Cheke and Jenkins noted that the pelage patterns of the specimen were unsocial and were unlikely to person been caused by partial leucism.

Despite the findings, the researchers failed to cod the specimen, meaning that its “rediscovery” cannot beryllium confirmed. Repeated attempts to find much individuals person proved unsuccessful. They said that arsenic the idiosyncratic photographed was astir 350 km distant from wherever it was archetypal described, they had not ruled retired that it could person been accidentally transported from a lowland habitat.

“The imaginable rediscovery of the taxon successful the Nilgiris could bespeak a broader, under-documented range, reflecting the precise small understood habitats of the species. Suitable habitats for the shrew could hap successful the Eastern Ghats and the Nilgiris foothills, suggesting imaginable dispersal corridors. Focused trapping efforts successful these regions crossed aggregate seasons, combined with familial analysis, are needed to corroborate the rediscovery of the species,” Mr. Moinudheen said.

“Though this is not a taxonomic revision oregon molecular confirmation, it is simply a high-confidence photographic grounds which has been reviewed by experts from crossed the world. They hold that it does not lucifer immoderate known Indian species... Yet, its value is undeniable — a carnal thought gone everlastingly could persist successful the wild,” helium added.

“This is the archetypal credible technological grounds of Sonnerat’s shrew successful much than 200 years. The distinctive pelage signifier seen successful the Nilgiris  specimen does not lucifer immoderate known Indian shrew, which is wherefore planetary experts see it a high-confidence record. The uncovering besides highlights a important biogeographic spread betwixt Pondicherry and the Nilgiris, suggesting that the taxon whitethorn person a wider, antecedently undocumented range. Confirming its individuality volition necessitate familial samples, and our squad has initiated expanded surveys crossed the Nilgiris, the Eastern Ghats, and the humanities benignant locality,” said Samson Arockianathan of the Bombay Natural History Society.