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Interesting Creatures… Woolly monkey
Woolly monkey
Kaieteur News – The woolly monkeys are the genus Lagothrix of New World monkeys, usually placed in the family Atelidae.
The four species of woolly monkeys all originate from the rainforests of South America. They have prehensile tails and live in relatively large social groups.
The following species are currently considered to be within the genus:
-Brown woolly monkey, L. lagotricha
-Gray woolly monkey, L. cana
*L. c. cana
*L. c. tschudii
-Colombian woolly monkey, L. lugens
-Silvery woolly monkey, L. poeppigii
One species of woolly monkey, the yellow-tailed woolly monkey, has recently been placed in the genus Oreonax.
Description
Woolly monkeys are closely related to spider monkeys. They have a thick brown coat with dark grey appendages. The stomach area is black and heads are light brown. The fur colour is the same for both males and females. Variation in colour exists among subspecies. A prehensile tail assists in climbing and fulfills many functions of an opposable thumb. Arm and legs are about equal in length. All species are large, weighing around seven kilograms (15 lbs). Males weigh 45 percent more than females on average but are of equal length.
Habitat and social behaviour
Woolly monkeys are found throughout the northern countries of South America (Bolivia, Brazil, Colombia, Ecuador, Venezuela and Peru). They usually reside in high-elevation cloud forests, seasonally flooded rainforests and forests which are situated within Colombia’s eastern plains region, although their ideal habitat is humid and mature tropical forests.
The species lives in social groups ranging from 10 to 45 individuals. Foraging groups, however, tend to consist of two to six individuals, which branch out from the main group, which is probably intended to reduce food competition between individuals. Woolly monkey diets consist of fruits with an addition of leaves, seeds, flowers, and invertebrates. Each group is governed and led by an alpha male and the social organisation within a larger group is organised by age, sex, and the reproductive status of females. Reproduction in these groups is characterised by promiscuity; one male (either the alpha or subordinate) mates with more than one female, just as females mate with more than one male. Shortly after the females reach maturity, they leave their natal groups to avoid any occurrence of inbreeding, while males tend to remain in their natal groups.
Play not only serves as a bonding process to rekindle relationships among individuals, but is also a way the species establishes a hierarchy or social pecking order, as well as passive food sharing, which is also considered a common routine in the species. Woolly monkeys have an elaborate system of vocalisation and olfactory, visual and tactile communication. These can be used to coordinate group activities, indicate aggression, affection and marking and establish territories.
Predation and preservation
Woolly monkeys are hunted by a variety of species of eagles and cats, such as the jaguar. Their main predators, however, are humans who hunt the species both for food and for the illegal pet trade. Habitat encroachment is also threatening the survival of the species; all these factors are believed to be the cause of the species’ recent decline. Woolly monkeys are now considered highly endangered and captive individuals are bred to ensure the survival of the species as part of the International Breeding Programme for Endangered Species. (Source Wikipedia)
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