New monkey discovered on “island” amid deforestation in Brazil

New monkey discovered on “island” amid deforestation in Brazil

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DNA analysis has revealed a “new” species of monkey that only survives today because its habitat is difficult to access and therefore hasn’t been converted for large-scale agriculture, reports New Scientist.

Writing in Primate Conservation, a team of scientists analyzed the traits of a group of titi rediscovered in 2011 in the Chapada dos Parecis, a plateau in southern Rondônia and western Mato Grosso that lies in the “Arc of Deforestation”, an area where vast swathes of forest have been cleared for cattle ranching and mechanized soy farms.

The newly-named species is similar to the dusky titi monkey which is also found in Brazil ( Rex Features )

They determined that the monkeys in this area are sufficiently distinct from the closely related ashy black titi to be classified as a separate species.

They dubbed the primate after the name of the plateau.

While Plecturocebus parecis lives in an area of high deforestation, its habitat — transition forest between the wet and the drier Cerrado woodland — lies with within Juruena National Park and indigenous territories.

The steep sides of plateau have also afforded protection by making its habitat unappealing for large-scale deforestation that has happened elsewhere in the region.

For these reasons, the researchers recommended listing Plecturocebus parecis as Near Threatened on the IUCN Red List.

Plecturocebus parecisis the third new monkey species described in Brazil this year.

Plectrocebus parecis from the forest reserve of the UHE Rondon II hydroelectric plant. Photograph A by Alberto Caldeiras; photographs B, C and D by Manoel Pinheiro, and photographs E and F by Fabiano Mattos.
Results of the species delimitation analysis. From Gusmão et al 2019.
Plecturocebus parecis (left) and the closely related Plecturocebus cinerascens (right). Illustration courtesy of Stephen D. Nash.

Citation

  • Almério Câmara Gusmão, Mariluce Rezende Messias, Jeferson Costa Carneiro, Horacio Schneider, Thiago Bento de Alencar, Armando Muniz Calouro, Júlio Cesar Dalponte, Fabio de Souza Mattos, Stephen F. Ferrari, Gerson Buss, Renata Bocorny de Azevedo, Eduardo Marques Santos Júnior, Stephen D. Nash, Anthony B. Rylands, and Adrian A. Barnett. 2019. A New Species of Titi Monkey, Plecturocebus Byrne et al., 2016 (Primates, Pitheciidae), from Southwestern Amazonia, Brazil. Primate Conservation. 33; S. 1-15.


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