Grey-cheeked mangabey

Grauwangenmangabe ( Lophocebus albigena )

The Grauwangenmangabe ( Lophocebus albigena ) is a primate of the family Cercopithecidae ( Cercopithecidae ). They are often to the Osman -Hill Mangabey Johnston Mangabe and the Uganda Mangabe collectively referred to as Mantelmangabe.

Features

Grauwangenmangaben are relatively slender primates with long limbs and a long tail. They reach a body length 40-72 centimeters, the tail is 55 to 100 inches long. The weight is from 4 to 11 kg, the males are slightly heavier than the females. The coat is predominantly black or black-brown colored with the exception of the long, white-gray back hair and long, gray hair on the shoulders, which they owe the name Mantelmangabe.

Distribution and habitat

Grauwangenmangaben are located in the central Africa. Excluding the introduction mentioned, separated species their distribution area of southwestern Cameroon ( south of the Sanaga River ), Equatorial Guinea, Gabon, and the Republic of Congo. Their habitat is forests, tropical rain forests in the first place.

Way of life

These animals are diurnal and arboreal, which rarely come to the ground. They live together in groups of 10 to 20 animals. These consist of one or several males, many females and the corresponding offspring. While foraging, the groups sometimes divide into smaller subgroups. There are territorial animals, the other groups communicate through cries of their whereabouts. The males have pronounced throat pouches for this purpose. Based on this understanding, it is rare to aggressive encounters various groups.

Grauwangenmangaben are omnivorous, but mainly take fruits, nuts and seeds to himself. Flowers, leaves and insects and other small animals to supplement the diet.

Reproduction

The pairing can take place throughout the year. After an approximately 175 - day gestation, the female gives birth to usually a single young is born. Sexual maturity occurs in females with three years in males with five to seven years. While males must leave their natal group at this time, females of their lives remain temporarily in the same group.

System

The Grauwangenmangabe is classified in the genus of Schwarzmangaben ( Lophocebus ), which is related by recent findings not particularly close with the Weißlid - mangabeys ( Cercocebus ). The south of the Congo River living Schopfmangabe is now generally recognized as a separate species.

Colin Groves announced in 2007, the Mantelmangabe on four types, which differ from one another in the color of the shoulder long hair: When Grauwangenmangabe these are gray, when Osman Hill Mangabe (L. Ottoman ) reddish- brown, and in the Johnston Mangabe (L. johnstoni ) dark brown. The Uganda Mangabe (L. ugandae ) finally is generally smaller and has a shorter skull. The first three of these populations had long been recognized as a subspecies of Groves they were elevated to the species rank.

Threat

Grauwangenmangaben be true in some places hunted for their meat and suffer the destruction of their habitat, sometimes they are also tracked as they ravage plantations. The IUCN, which still summarizes the types mentioned above with the Grauwangenmangabe, sees the species as widespread and lists them as " not at risk " ( least concern ).