Southern pig-tailed macaque Southern pig-tailed macaque The southern pig-tailed macaque ("Macaca nemestrina"), also known as the Sundaland pigtail macaque and Sunda pig-tailed macaque, is a medium-sized macaque that lives in southern Thailand, Malaysia, and Indonesia. It is known locally as the beruk. The species epithet, "nemestrina", is an adjective (derived from Latin "Nemestrinus", the god of groves) modified to agree in gender with the feminine generic name. "Macaca nemestrina" formerly included the northern pig-tailed, Pagai Island, and Siberut macaques as subspecies. All four are now considered separate species. "Macaca nemestrina" can reach a weight of 5–15 kg in large males. These monkeys are
Macaque macaques have become invasive species in different parts of the world, while others that survive in forest habitats remain threatened. The long-tailed macaque ("Macaca fascicularis") is listed as a threat and invasive alien species in Mauritius along with the rhesus macaques ("Macaca mulatta") in Florida. The long-tailed macaque causes severe damage to parts of its range where it has been introduced because the populations grow unchecked due to a lack of predators. On the island Mauritius, they have created serious conservation concerns for other endemic species. They consume seeds of native plants and aid in the spread of exotic weeds