Monkey

Macaca fascicularis is an introduced alien species in several locations, including Hong Kong, western New Guinea, Anggaur Island in Palau, and Mauritius. Where it is a non-native species, particularly on island ecosystems whose species often evolved in isolation from large predators, M. fascicularis is a documented threat to many native species. This fact has led the World Conservation Union (IUCN) to list M. fascicularis as one of the "100 worst invasive alien species". Insofar as it is present as an invasive alien species on several islands, it has been labelled a "weed" species and is yet another significant ecological threat to those ecosystems and the species within them. However, M. fascicularis is not a biodiversity threat in its native range, where other species have adapted to their presence through evolutionary time.Long-tailed macaques extensively overlap with humans across their range in SE Asia. Consequently, their are many locations where people and long-tailed macaques live together. Some of these areas are associated with religious sites and local customs, such as the temples of Bali in Indonesia, Thailand, and Cambodia, while other areas are characterized by conflict as a result of habitat loss and competition over food and space.Humans and long-tailed macaques have shared environments since prehistorical times, and tend to both frequent forest and river edge habitats .