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Animal Detail ViewՄանրամասն` նրանց մասին

28.02.2012

Ruffed Lemur (Varecia variegata)


Scientific classification 

Kingdom: Animalia

Phylum: Chordata

Class: Mammalia

Order: Primates

Family: Lemuridae

Genus: Varecia

Species: V. variegate

 

Description 

Black and white ruffed lemurs are among the largest of the true lemurs, with a head and body length of 51 to 60 cm and tail length of 56 to 65. Weights range from 3.2 to 4.5 kg. Females are larger than males. Lemurs have long, soft fur and are famous for variation of color and pattern. In fact, many consider ruffed lemurs to be the most beautiful species in its family. At least five different coat patterns are found among these lemurs, including one in which an orangish-red color replaces almost all of the white coloration. The coat is long and soft, and color pattern may vary on different sides of the body. In Ruffed Lemur, the coat is mostly black with large white areas on the head, back and limbs. 

Range and Habitat

Ruffed lemurs, are found in the eastern rain forest of Madagascar. Two subspecies are recognized: V. v. variegata and V. v. rubra. The Antainambalana River geographically separates the two subspecies; V. v. rubra is found north of the river, and V. v. variegata is found south. The latter subspecies is also found on the island of Nosy Mangabe.

Ruffed lemurs are tree dwellers and are the most arboreal of the true lemurs. They inhabit the wet evergreen forest on the eastern coast of Madagascar

Behavior 

Ruffed lemurs live in groups ranging from 2 to 5 individuals. These groups apparently represent mated pairs and their offspring. However, in some areas of Madagascar, groups of up to 16 individuals may be formed, although these break down into smaller subgroups during the cool wet season. Females seem to form the stable core of these larger groups. Females defend a group's territory more often than males.

Ruffed lemurs spend most of the day feeding, traveling, and resting high up in the forest canopy. They are the most active in the morning and late afternoon.

Diet

Varecia variegata is the most frugivorous of the living lemurs, but it also feeds on leaves, seeds and nectar according to the season. They have also been known to eat soil at times.

Reproduction

Mating appears to occur in June and July. The estrous cycle of female ruffed lemurs lasts approximately 30 days with the estrous period averaging 6.25 days. Gestation is markedly shorter than in other lemurs, typically lasting between 90 and 102 days. Females are capable of having up to 6 offspring from a single pregnancy, but usually only 2 or 3 offspring are born at a time. In fact, over one-half of births are twins. Weaning occurs at approximately 135 days of age, and infants are close to adult size by the time they reach 6 months. Females are able to conceive at 20 months, but the average age of first reproduction is 3.4 years. Mothers build nests for their newborns, usually in the fork of a tree. Infants are allowed to leave the nest at 3 weeks and are as mobile as their parents by the time they are 7 weeks old.

Conservation Status

The species Listed in the IUCN Red List and evaluated as Critically Endangered.

    

 

 



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