Dispersal patterns in black howler monkeys (Alouatta pigra): Integrating multiyear demographic and molecular data

A 15-year study of black howler monkeys (Alouatta pigra) in Palenque National Park, Mexico, reveals complex and sex-biased dispersal patterns. Using a combination of demographic data from six groups and genetic sampling from 20 groups (169 individuals), researchers found that males disperse more frequently but over shorter distances compared to females, who disperse farther. Both sexes can immigrate into established groups or form new ones, either singly or in pairs, indicating multiple dispersal trajectories. The study highlights the importance of long-term research to understand the demographic, ecological, and social factors influencing these decisions.

Van Belle, S., & Di Fiore, A. (2021). Dispersal patterns in black howler monkeys (Alouatta pigra): Integrating multiyear demographic and molecular data. Molecular Ecology, 31(1), 391–406. Portico. https://doi.org/10.1111/mec.16227