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Animal Detail ViewՄանրամասն` նրանց մասին

28.02.2012

Mandrill (Mandrillus sphinx)


Scientific classification

Kingdom: Animalia

Phylum: Chordata

Class: Mammalia

Order: Primates

Family: Cercopithecidae

Genus: Mandrillus

Species:  M. sphinx

Description 

Mandrills reach a height of about 80 cm. The species is characterized by a large head, a compact body with long, powerful limbs, and a stubby tail, which is held upright. The wide rotating range of the clavicles enables climbing trees, the quadrupedal walk, and the functioning of the arms. Both sexes have paired mammary glands in the chest region. These animals are reported to have average weights of 11.5 for females, and 25 kg for males. Males are significantly larger than females and may weigh up to 54 kg. The pelage is an olive green with paler underparts. It has a brilliantly colored blue to purple naked rump. A mandrill's face has a red stripe down the middle of the muzzle and around the nostrils, while the sides of the muzzle are ridged lengthwise and colored blue. Mandrills have red fur patches above the eyes and a yellow beard. These colorings are duller in females and juveniles than in adult males.

Range and Habitat

Mandrills are found in southwestern Cameroon, western Gabon, Equatorial Guinea, and southwestern Congo. Mandrills are found in tropical rain forest habitats, montane and thick secondary forests, and thick bush. Although they are adapted to live in the ground, mandrills seek shelter in the trees during the night.

Behavior

Mandrill groups can range in size from a few head up to 50 individuals. Mandrills live on the ground by day and sleep in trees at night. Their bright coloring is a key feature in social behavior. When excited, the blue color of the pad on their buttocks intensifies, their chest turns blue, and red dots may appear on the wrists and ankles. The flashing of the bright rump, which originated as a signal of receptiveness in estrous females, has also been interpreted as an act of submissiveness in both sexes.

Diet

Mandrills have a highly varied diet including fruit, seeds, fungi, roots, insects, snails, worms, frogs, lizards, and sometimes snakes and even small vertebrates. Generally, mandrill males scrounge for food on the ground while females and their young sit in midlevel trees.

Reproduction

Breeding is not seasonal but rather occurs about every two years, depending on the available food supply. Mating is believed to occur between July and October, while birthing occurs between December and April. Females give birth to their first young anywhere between 4 and 8 years of age. Gestation lasts for about 6 months after which females give birth to a single young. he bulk of the care for infants in such species is provided by the mother. Mothers give their young protection, grooming, and nourishment. 

Conservation Status

The species listed in the IUCN Red List and evaluated as Vulnerable.

 



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