New records of Saimiri collinsi Osgood, 1916 (Cebidae, Primates), with comments on habitat use and conservation
2018
Pinto Mercês, Michelle | de Paula, Wlainer Silva | de Sousa e Silva Júnior, José
Saimiri collinsi is a primate that occurs in the Amazon biome and recently was elevated to species status. Despite being an abundant and widespread species, S. collinsi distributional limits are still unknown in the transitional region between Amazon and Cerrado biomes. Here we provide 25 new records for the species, obtained through field observation and analysis of museum specimens. Twenty-one records are from Maranhāo state, three from Tocantins where the species had not yet been registered and one in Pará state. These records expand its known distribution, which now includes the area of transition between the Amazon and Cerrado, as well as one record in the Cerrado biome. We registered the species in areas with intense forest fragmentation and within different habitat types, including primary and secondary forest, babassu palm forest and capoeira forest. This indicates that S. collinsi is a species that can survive in locations with extreme anthropogenic alterations. Nevertheless, out of these new records only the ones in Maranhāo are within protected areas. Even these protected areas are undergoing pressures from deforestation, agriculture, livestock and mining, suggesting that these squirrel monkey populations might be threatened in this region.
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