The Bolivian red howler is a large howler monkey of lowland tropical and subtropical forests in South America. It mainly eats leaves, fruit, and flowers, and gives loud calls.
It has a large, robust body and mane-like fringe around the head. Fur ranges from brown to black, lighter on the abdomen, and its tail can grasp branches.
At a field station in Peru’s Manu Biosphere Reserve, researchers examined primate records from three regenerating forest types with different histories of disturbance. The incidental observations covered January 2011 to February 2023 and included 5,333 records across nine species. Of these, 271 were Bolivian red howlers.
Among the howler records, 187 were in the upper forest layer, 38 in the middle, 45 in the lower layer, and one on the ground. The species appeared in all three forest types and was recorded most often in the upper layer. The dataset brings together forest recovery and vertical habitat use for howlers at this Manu site.
An extinction-risk assessment has not been added yet.
At the Manu site, Bolivian red howlers were recorded in all three forest types, with most observations in the upper layer. Tracking use of the canopy as well as forest condition can help describe habitat use in regenerating forest.