Samenvatting

Howler monkeys (genus Alouatta) are new world monkeys native to Central and South America. Although the overall population of howler monkeys is declining due to habitat loss and the illegal trade, their status, as categorised by the IUCN Red List of Threatened Species (2017), ranges from Least Concern to Endangered. Howler monkeys usually end up in captivity through the illegal wildlife trade and their subsequent confiscation and relocation to rescue centres or zoos. Most individuals kept in captivity are black howler monkeys (Alouatta caraya), which is why this paper focuses on this species. This paper uses the social network analysis technique to explore the social network structure of two groups of captive Alouatta caraya at Port Lympne reserve.