White-headed lemur

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White-headed lemur
Eulemur albifrons 001.jpg
CITES Appendix I (CITES) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Strepsirrhini
Family: Lemuridae
Genus: Eulemur
Species:
E. albifrons
Binomial name
Eulemur albifrons
Eulemur albifrons range map.svg
Distribution of E. albifrons [1]
Synonyms
  • fredericiLesson, 1840

The white-headed lemur (Eulemur albifrons), also known as the white-headed brown lemur, white-fronted brown lemur, or white-fronted lemur, is a species of primate in the family Lemuridae. It is only found in north-eastern Madagascar. It is arboreal and is usually found in rainforest treetops. It was formerly recognised as a subspecies of the common brown lemur (Eulemur fulvus).

Contents

Physical characteristics

The white-headed lemur is a medium-sized lemur and has a horizontal posture, which is suited to its way of movement. It has a long furry tail assisting it in maintaining its balance as it lands from leaping at a considerable distance. Males have gray-brown upper parts, with darker lower limbs and tail, paler gray upper parts, gray head and face and a darker crown. Females have redder-brown upper parts, paler underparts and darker feet than males. The cheeks and beards are white, bushy and pronounced in males, reddish-brown and less bushy in females. The head, face and muzzle of the female are dark gray, but without the bushy cheeks of the male. The white-headed lemur has an average body weight of 2.3 kg (5.1 lb), and body length of 40 cm (16 in), and its tail can grow up to 50 cm (20 in). [4]

White-headed lemurs can live up to 30 years. [4]

The species was previously classified as Eulemur fulvus albifrons, a subspecies of the common brown lemur, and although very similar in appearance genetic analysis supports distinct species status. [5]

Habitat and range

This lemur is mostly found in moist lowland and montane rainforests. The white-headed lemur is arboreal and spends most of its time in the upper layers of the forest. It is only found in north-eastern Madagascar. [1]

Behaviour and mating

This species is cathemeral, meaning it is active at varying times throughout the day and night. [6] It has an omnivorous diet consisting of fruit, mature leaves, flowers, bark, sap, soil, insects, centipedes and millipedes. The diet changes depending on the reproductive stage of the females, during gestation both males and females supplement their diet with flowers, during lactation, more flowers and young leaves and when nonreproductive they eat more mature leaves and miscellaneous other items like millipedes. [7]

The mating system of this lemur has not been reported. However, other species in the genus Eulemur are either monogamous or polygynous. It is likely that the white-headed lemur is similar. For the first three weeks of its life, a young lemur hangs onto its mother's belly, altering its grasp only to nurse. After three weeks have passed, it shifts and rides on the mother's back. It then starts to take its first steps. Following this, it starts to sample solid food, nibbling on whatever the other members of the group happen to be eating. This is its first sign of independence. Nursing continues but its importance in the infant's diet tapers. The young lemur is weaned after approximately four months, usually by January. [7] [4]

Unlike other members of the genus, females are not usually dominant to males, so the degree to which females exert active mate choice is not known. It forms multi-male multi-female groups. [7] Depending on the population, the size of these groups can vary, they usually number three to twelve individuals, although five to seven seems to be average. [4]

Status

Eulemur albifrons is classified as Vulnerable on the IUCN Red List. [1]

Related Research Articles

<span class="mw-page-title-main">Lemuridae</span> Family of lemurs

Lemuridae is a family of strepsirrhine primates native to Madagascar and the Comoros. They are represented by the Lemuriformes in Madagascar with one of the highest concentration of the lemurs. One of five families commonly known as lemurs. These animals were once thought to be the evolutionary predecessors of monkeys and apes, but this is no longer considered correct. They are formally referred to as lemurids.

<span class="mw-page-title-main">Ring-tailed lemur</span> A large lemur from Madagascar

The ring-tailed lemur is a medium- to larger-sized strepsirrhine (wet-nosed) primate and the most internationally recognized lemur species, owing to its long, black-and-white, ringed tail. It belongs to Lemuridae, one of five lemur families, and is the only member of the Lemur genus. Like all lemurs, it is endemic to the island of Madagascar, where it is endangered. Known locally in Malagasy as maky or hira, it ranges from gallery forests to spiny scrub in the southern regions of the island. It is omnivorous, as well as the most adapted to living terrestrially of the extant lemurs.

<span class="mw-page-title-main">Verreaux's sifaka</span> Species of lemur

Verreaux's sifaka, or the white sifaka, is a medium-sized primate in one of the lemur families, the Indriidae. It lives in Madagascar and can be found in a variety of habitats from rainforest to dry deciduous forests of western Madagascar and the spiny thickets of the south. Its fur is thick and silky and generally white with brown on the sides, top of the head, and on the arms. Like all sifakas, it has a long tail that it uses as a balance when leaping from tree to tree. However, its body is so highly adapted to an arboreal existence, on the ground its only means of locomotion is hopping. The species lives in small troops which forage for food.

<span class="mw-page-title-main">Ruffed lemur</span> Genus of primates from Madagascar

The ruffed lemurs of the genus Varecia are strepsirrhine primates and are the largest extant lemurs within the family Lemuridae. Like all living lemurs, they are found only on the island of Madagascar. Formerly considered to be a monotypic genus, two species are now recognized: the black-and-white ruffed lemur, with its three subspecies, and the red ruffed lemur.

<span class="mw-page-title-main">True lemur</span> Genus of lemurs

True lemurs, also known as brown lemurs, are the lemurs in genus Eulemur. They are medium-sized primates that live exclusively on Madagascar.

<span class="mw-page-title-main">Mongoose lemur</span> Species of lemur

The mongoose lemur is a small primate in the family Lemuridae, native to Madagascar and introduced to the Comoros Islands. These arboreal animals have pointed faces, long, bushy tails, dark-brown upper parts, pale bellies, and beards, which are reddish in males and white in females. They live in family groups and feed primarily on fruit, but also eat leaves, flowers, and nectar, with nectar from Ceiba pentandra trees making up a large part of their diet during the dry season. They have declined sharply in numbers because of habitat destruction and hunting, and the International Union for Conservation of Nature has rated their conservation status as "critically endangered".

<span class="mw-page-title-main">Golden-brown mouse lemur</span> Species of lemur

The golden-brown mouse lemur, also known as the (Lac) Ravelobe mouse lemur, is part of the Cheirogaleidae family, and the smallest species of lemur. It is arboreal, nocturnal and usually social. It get its name from the color of its body. Like several other mouse lemurs, like the brown mouse lemur, it is a small primate that has a brown dorsal side and a whitish-grey for its ventral side of the body. All lemurs live in Madagascar. This species was discovered in 1994.

<span class="mw-page-title-main">Red-bellied lemur</span> Species of lemur

The red-bellied lemur is a medium-sized strepsirrhine primate with a luxuriant chestnut brown coat. This lemur is endemic to eastern Madagascan rainforests and is distinguished by patches of white skin below the eyes, giving rise to a "teardrop" effect, particularly conspicuous in the male.

<span class="mw-page-title-main">Crowned lemur</span> Species of lemur

The crowned lemur is a lemur that is 31–36 cm (12–14 in) long and weighs 2 kg (4.4 lb). Its tail is about 42–51 cm (17–20 in) long.

<span class="mw-page-title-main">Black lemur</span> Species of lemur

The black lemur is a species of lemur from the family Lemuridae. Like all lemurs, it is endemic to Madagascar. Originally, the species was thought to have two subspecies, Eulemur macaco macaco and Eulemur macaco flavifrons, both of which were elevated to species status by Mittermeier et al. in 2008 to Eulemur macaco and Eulemur flavifrons respectively. The most startling difference between the two species is the eye colour; Eulemur flavifrons, the blue-eyed black lemur, has blue eyes, while Eulemur macaco, the black lemur, has brown or orange eyes, and also has ear tufts.

<span class="mw-page-title-main">Blue-eyed black lemur</span> Species of true lemur

The blue-eyed black lemur, also known as the Sclater's lemur, is a species of true lemur. It can attain a body length of 39–45 cm (15–18 in), a tail length of 51–65 cm (20–26 in), a total length of 90–100 cm (35–39 in), and a weight of 1.8–1.9 kg (4.0–4.2 lb). Being a primate, it has strong hands with palms like a human, which have a rubbery texture to give it a firm grip on branches. Its tail is longer than its body and is non-prehensile.

<span class="mw-page-title-main">Greater dwarf lemur</span> Species of lemur

The greater dwarf lemur, or the Geoffroy's dwarf lemur, is a lemur that is widely distributed over the primary and secondary forests near the eastern coast of Madagascar. They are also found in northern parts of Madagascar. Greater dwarf lemurs live in forests and dry scrub areas. The head and body of the greater dwarf lemur can range from 167 to 264 millimeters in length, and 164 to 600 grams. Their tails can range from 195 to 310 millimeters in length.

<span class="mw-page-title-main">Madame Berthe's mouse lemur</span> Species of mammal

Madame Berthe's mouse lemur or Berthe's mouse lemur is the smallest of the mouse lemurs and the smallest primate in the world; the average body length is 9.2 cm (3.6 in) and seasonal weight is around 30 g (1.1 oz). Microcebus berthae is one of many species of Malagasy lemurs that came about through extensive speciation, caused by unknown environmental mechanisms and conditions.

<span class="mw-page-title-main">Common brown lemur</span> Species of lemur

The common brown lemur is a species of lemur in the family Lemuridae. It is found in Madagascar and has been introduced to Mayotte.

<span class="mw-page-title-main">Collared brown lemur</span> Species of lemur

The collared brown lemur, also known as the red-collared brown lemur or red-collared lemur, is a medium-sized strepsirrhine primate and one of twelve species of brown lemur in the family Lemuridae. It is only found in south-eastern Madagascar. Like most species of lemur, it is arboreal, moving quadrupedally and occasionally leaping from tree to tree. Like other brown lemurs, this species is cathemeral, lives in social groups, primarily eats fruit, exhibits sexual dichromatism, and does not demonstrate female dominance. The species is listed as Endangered by the International Union for Conservation of Nature (IUCN) and is threatened primarily by habitat loss.

<span class="mw-page-title-main">Sanford's brown lemur</span> Species of lemur

Sanford's brown lemur, or Sanford's lemur, is a species of strepsirrhine primate in the family Lemuridae. Sanford's brown lemur was previously considered a subspecies of the common brown lemur but was raised to full species in 2001. It is named after Leonard Cutler Sanford, a trustee of the American Museum of Natural History.

<span class="mw-page-title-main">Southern woolly lemur</span> Species of lemur

The southern woolly lemur, or southern avahi, has been recently recognized as a separate species of woolly lemur in 2006 by Zaramody et al. It is a nocturnal and pair-living species. Groups can range from 2 to 5 individuals. A study in Sainte Luce forest revealed home range varied from 2.2 to 3.5 ha and that males can have larger home range and cover longer daily distances than females, in agreement with the territory defence and mate guarding hypotheses.

<span class="mw-page-title-main">Red-fronted lemur</span> Species of lemur

The red-fronted lemur, also known as the red-fronted brown lemur or southern red-fronted brown lemur, is a species of lemur from Madagascar. Until 2001, it was considered a subspecies of the common brown lemur, E. fulvus. In 2001, E. fulvus was split into several separate species, including Eulemur rufus, in which this species was included. In 2008, E. rufus was split into two species, the red lemur and the red-fronted lemur. E. rufus covers the population on the west coast north of the Tsiribihina River and E. rufifrons covers the population on the west coast south of the Tsiribihina River and the population in eastern Madagascar. The species split was based on genetic and morphological evidence. Mitochondrial DNA analysis indicates that E. rufifrons may be more closely related to the common brown lemur, white-headed lemur and Sanford's brown lemur than it is to E. rufus.

<span class="mw-page-title-main">Red lemur</span> Species of lemur

The red lemur, also known as the rufous brown lemur or northern red-fronted lemur, is a species of lemur from Madagascar. Until 2001, the species E. rufus was considered a subspecies of the common brown lemur, E. fulvus, after which it was classified as its own species. In December 2008, the species was split into two separate species, the red lemur, E. rufus, distributed in dry lowland forests in northwestern Madagascar, and the red-fronted lemur, E. rufifrons, distributed in southwest and eastern Madagascar. The species split was based on genetic and morphological evidence. Mitochondrial DNA analysis indicates that E. rufifrons may be more closely related to the common brown lemur, white-headed lemur and Sanford's brown lemur than it is to E. rufus.

<span class="mw-page-title-main">Milne-Edwards's sifaka</span> Species of lemur

Milne-Edwards's sifaka, or Milne-Edwards's simpona, is a large arboreal, diurnal lemur endemic to the eastern coastal rainforest of Madagascar. Milne-Edwards's sifaka is characterized by a black body with a light-colored "saddle" on the lower part of its back. It is closely related to the diademed sifaka, and was until recently considered a subspecies of it. Like all sifakas, it is a primate in the family Indriidae.

References

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