Argentina lies within the southernmost distributional range of five neotropical primates, brown howler monkey Alouatta guariba, black-and-gold caraya, black-horned capuchin Sapajus nigritus, Azara’s cay, and owl Aotus azarae; first three which are globally threatened. These species occupy different ecoregions: Alto Paraná Atlantic forest, Araucaria moist humid Chaco, Southern Cone Mesopotamian ...