A population of 142 Mount Kenya guerezas in 22 family groups was reintroduced into Karura Forest between May 2014 and March 2016. This study evaluated changes in group size, composition, number of births and deaths, natal dispersal, and post-release settlement. Results showed increased group size and number of births, indicating successful adaptation. Settlement along riverine ecosystems informs release habitat selection and provides insights into future primate translocations.

At the Estación Biológica Quebrada Blanco (EBQB), in north-eastern Peru, Peruvian red uakaris have been repeatedly sighted during long-term field research. The marked seasonality of sightings indicates that the EBQB area represents only a fraction of the uakari's home range and suggests that they undertake large-scale seasonal movements between different parts of the home range and between different habitats. Conservation strategies must take probably large space requirements into consideration.