Sundaland pig-tailed macaque, Sunda pig-tailed macaque, Beruk, Sundaland pig-tailed macaque
The southern pig-tailed macaque (Macaca nemestrina ), also known as the Sundaland pig-tailed macaque and Sunda pig-tailed macaque, is a medium-sized macaque that lives in southern Thailand, Malaysia, and Indonesia. It is known locally as berok.
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DiurnalDiurnal animals are active during the daytime, with a period of sleeping or other inactivity at night. The timing of activity by an animal depends ...
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OmnivoreAn omnivore is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and ani...
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FrugivoreA frugivore is an animal that thrives mostly on raw fruits or succulent fruit-like produce of plants such as roots, shoots, nuts, and seeds. Approx...
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HerbivoreA herbivore is an animal anatomically and physiologically adapted to eating plant material, for example, foliage, for the main component of its die...
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
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ArborealArboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some anima...
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AltricialAltricial animals are those species whose newly hatched or born young are relatively immobile. They lack hair or down, are not able to obtain food ...
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ZoochoryZoochory animals are those that can disperse plant seeds in several ways. Seeds can be transported on the outside of vertebrate animals (mostly mam...
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TerritorialA territory is a sociographical area that which an animal consistently defends against the conspecific competition (or, occasionally, against anima...
Among animals, viviparity is the development of the embryo inside the body of the parent. The term 'viviparity' and its adjective form 'viviparous'...
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PolygynandryPolygynandry is a mating system in which both males and females have multiple mating partners during a breeding season.
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Dominance hierarchyA dominance hierarchy (formerly and colloquially called a pecking order) is a type of social hierarchy that arises when members of animal social gr...
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Not a migrantAnimals that do not make seasonal movements and stay in their native home ranges all year round are called not migrants or residents.
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starts withThis macaque has has buff-brown fur, with a darker dorsal area and lighter ventral area. Its common name refers to the short tail held semi-erect, resembling the tail of a pig. As with other Macaca species, males are larger than females; while males are measured at 50–58 cm (20–23 in) in length and 5–12 kg (11–26 lb) in weight, females are measured at 38–48 cm (15–19 in) in length and 4.5–6 kg (9.9–13.2 lb) in weight.
Southern pig-tailed macaques are found in the southern half of the Malay Peninsula (only just extending into southernmost Thailand), Borneo, Sumatra, and Bangka Island. They mainly live in dense rainforest, but will also enter plantations and gardens.
Southern pig-tailed macaques are mainly terrestrial, but also skilled climbers and often forage in the tree canopy. Unlike almost all primates, these macaques love water. They live in large groups that split into smaller groups during the daytime when they are foraging. There is a hierarchy among males, based on strength, and among females, based on heredity. Thus, the daughter of the alpha female will immediately be placed above all other females in the group. The alpha female leads the group, while the male role is more to manage conflict within the group and to defend it. Pig-tailed macaques are generally silent but they make a lot of vocalizations when they need to. They communicate with each other with the help of screams, squeals, growls, barks, screeches, and have the most common vocalization the sounds as 'coo'. Group members also groom each other, kiss, and feed together.
Southern pig-tailed macaques are omnivores. They eat mainly fruits, seeds, berries, leaves, cereals, fungi, and invertebrates.
Southern pig-tailed macaques are polygynandrous (promiscuous), meaning that both the males and the females have multiple partners. Their breeding season takes place year-round. Females give birth to a single infant every two years and the gestation period lasts around 5.7 months. The young are born altricial and unable to feed and care for themselves independently. Mothers carry them, protect them, and nurse for 4-5 months. After one year of age, juveniles begin to associate more with other juveniles through rough tumble and playing activities. Young females become reproductively mature at 3 years of age and males start to breed when they are 4.5 years old.
The main threat to Southern pig-tailed macaques is habitat loss due to logging and agricultural development. They are also hunted for food, killed as crop pests or captured for the exotic pet trade.
According to the Restorasi Ekosistem Riau (RER) resource the total population size of the Southern pig-tailed macaques is 900,000 individuals. Currently, this species is classified as Vulnerable (VU) on the IUCN Red List and its numbers today are decreasing.
Southern pig-tailed macaques play an important role in their ecosystem, as they disperse seeds of various fruits and plants they consume.
Social animals are those animals that interact highly with other animals, usually of their own species (conspecifics), to the point of having a rec...