| distribution and abundance of white-fronted spider monkeys, ateles belzebuth (atelidae), and threats to their survival in peruvian amazonia. | the white-fronted spider monkey, ateles belzebuth, is listed as 'endangered' according to the iucn classification. in peru it is found in the departments of loreto, san martín, amazonas and cajamarca, but detailed data on its geographic distribution, population densities and conservation status are scarce. in order to obtain such information, we conducted transect censuses on the río aushiri and río san antonio (right bank of río napo), and between the río curaray and the río arabela and río nas ... | 2012 | 23296267 |