Bamboo lemurs | |
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Golden bamboo lemur (Hapalemur aureus) | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Primates |
Suborder: | Strepsirrhini |
Family: | Lemuridae |
Genus: | Hapalemur I. Geoffroy, 1851 [2] |
Type species | |
Lemur griseus | |
Species | |
Hapalemur griseus Contents | |
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Combined distribution of Hapalemur [3] | |
Synonyms | |
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The bamboo lemurs or gentle lemurs are the lemurs in genus Hapalemur. These medium-sized primates live exclusively on Madagascar.
Bamboo lemurs were first described by French zoologist Isidore Geoffroy Saint-Hilaire in 1851. Comparing their small size, proportions, speckled fur, and other traits to those of marmosets—then classified in the genus Hapale—he named the genus Hapalemur. Hapale derives from the Greek word ἁπαλός (hapalos), meaning "gentle". [4]
In their discussion of lemur name etymologies, Dunkel et al. speculated that the once popular vernacular name for the genus, "gentle lemur", derived from the translation of Hapalemur, despite their notoriety for being one of the most aggressive lemurs in captivity—an observation first noted in a letter by Dutch naturalist François Pollen published in 1895. More recently, the common name "bamboo lemur" first appeared in the mid- to late-1980s following the rediscovery of the greater bamboo lemur (Hapalemur simus). However, the name became more generally used a year or two later following the discovery of the golden bamboo lemur (Hapalemur aureus) in 1987. For a few years, both names or combinations of both were widely used, but "bamboo lemur" became the preferred name in 1994 with the publication of the first edition of Lemurs of Madagascar . The term "gentle lemur" has seen little use in both popular and academic literature since the early 2000s. [4]
This section needs additional citations for verification .(December 2014) |
The bamboo lemurs are characterized by a grey-brown fur, which varies by species. Their muzzles are short and their ears are round and hairy. Lengths vary from 26 to 46 cm (10 to 18 in), with tails just as long or longer, and they weigh up to 2.5 kg (5.5 lb).
Bamboo lemurs prefer damp forests where bamboo grows. Although they can be active any time of the day, they are often active just after dawn. Though primarily arboreal, they sometimes come down to the ground. The Lac Alaotra gentle lemur or "bandro" (Hapalemur alaotrensis), which lives in the reed beds of Lac Alaotra, spends much of its time in water and can swim well, unlike other lemur species, which only venture to water to drink.
The lesser gentle lemurs live together in groups of three to five animals, which probably represent families composed of a male, one or two females, and their offspring. They communicate with a variety of sounds.
Gestation lasts 135 to 150 days and ends between September and January, when the female bears one to two young. These are weaned after about four months (if the food supply is ample) and are fully mature at two years of age. Their life expectancy is up to 12 years.
Not all bamboo contain cyanide, but H. aureus selects the growing tips of Cephalostachyum viguieri , which contain 15 mg of cyanide per 100 g (3.5 oz). Other bamboo lemurs have been found to consume less cyanogenetic forms of bamboo, such as mature shoots of C. viguieri or the leaves of Cephalostachyum perrieri. [5] How certain bamboo lemurs can detoxify the high amounts of cyanide in their diets is unknown. [6]
As of 2010, the classification of bamboo lemurs lists five species and three subspecies. [7] The greater bamboo lemur was removed from this genus in 2001 to Prolemur [8] but was restored in 2016. [9]
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.
The sportive lemurs are the medium-sized primates that make up the family Lepilemuridae. The family consists of only one extant genus, Lepilemur. They are closely related to the other lemurs and exclusively live on the island of Madagascar. For a time, this family was named Megaladapidae, but the current name was given precedence since the extinct genus Megaladapis was removed from the family.
Lemurs are wet-nosed primates of the superfamily Lemuroidea, divided into 8 families and consisting of 15 genera and around 100 existing species. They are endemic to the island of Madagascar. Most existing lemurs are small, have a pointed snout, large eyes, and a long tail. They chiefly live in trees and are active at night.
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.
Lake Alaotra is the largest lake in Madagascar, located in Alaotra-Mangoro Region and on the island's northern central plateau. Its basin is composed of shallow freshwater lakes and marshes surrounded by areas of dense vegetation. It forms the center of the island's most important rice-growing region. It is a rich habitat for wildlife, including some rare and endangered species, as well as an important fishing ground. Lake Alaotra and its surrounding wetlands cover 7,223 square kilometres (2,789 sq mi), and include a range of habitats, including open water, reedbeds, marshes, and rice paddies. The lake itself covers 900 km2 (350 sq mi). Lake Alaotra was declared a wetland of international importance under the international Ramsar Convention on February 2, 2003.
The golden bamboo lemur, bokombolomena or varibolomena in Malagasy, is a medium-sized bamboo lemur endemic to south-eastern Madagascar.
Patricia Chapple Wright is an American primatologist, anthropologist, and conservationist. Wright is best known for her extensive study of social and family interactions of wild lemurs in Madagascar.
The greater bamboo lemur, also known as the broad-nosed bamboo lemur and the broad-nosed gentle lemur, is a species of lemur endemic to the island of Madagascar.
The eastern lesser bamboo lemur, also known as the gray bamboo lemur, the gray gentle lemur, and the Mahajanga lemur is a small lemur endemic to Madagascar, with three known subspecies. As its name suggests, the eastern lesser bamboo lemur feeds mainly on bamboo. The lemurs of the genus Hapalemur have more manual dexterity and hand–eye coordination than most lemurs. They are vertical climbers and jump from stalk to stalk in thick bamboo forests.
The Lac Alaotra bamboo lemur, also known as the Lac Alaotra gentle lemur, Alaotran bamboo lemur, Alaotran gentle lemur, Alaotra reed lemur, or locally as the bandro, is a bamboo lemur. It is endemic to the reed beds in and around Lac Alaotra, in northeast Madagascar. It is about 40 cm (16 in) long, with a similar length tail, and is a brownish-gray colour. It is the only bamboo lemur to live in and feed on papyrus reeds, and other reeds and grasses, and some authorities argue that it should be regarded as a subspecies of the eastern lesser bamboo lemur. The population of this lemur has been declining because of habitat destruction and the International Union for Conservation of Nature has rated it as being "critically endangered".
The dwarf lemurs are the lemurs of the genus Cheirogaleus. All of the species in this genus, like all other lemurs, are native to Madagascar.
The western lesser bamboo lemur, also known as the northern bamboo lemur, western gentle lemur, or Sambirano lesser bamboo lemur, is a species of bamboo lemur endemic to Madagascar.
The southern lesser bamboo lemur, also known as the southern bamboo lemur, rusty-gray lesser bamboo lemur, and southern gentle lemur, is a species of bamboo lemur endemic to southern Madagascar.
Durrell's vontsira is a small, reddish-brown, fox-like mammal native to the island of Madagascar. Discovered in 2004, it lives only in the biodiverse wetlands of Lake Alaotra. Durrell's vontsira belongs to the family Eupleridae, a group of meat-eating, cat- or fox-like mammals found only on Madagascar. The species is closely related to the brown-tailed mongoose, with which it forms the genus Salanoia. The two are genetically similar, but morphologically distinct, and S. durrelli was described as a new species in 2010.
Cathariostachys madagascariensis, the Madagascar giant bamboo or volohosy in Malagasy language, is a bamboo species found in Madagascar.
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.
Lemurs were first classified in 1758 by Carl Linnaeus, and the taxonomy remains controversial today, with approximately 70 to 100 species and subspecies recognized, depending on how the term "species" is defined. Having undergone their own independent evolution on Madagascar, lemurs have diversified to fill many ecological niches normally filled by other types of mammals. They include the smallest primates in the world, and once included some of the largest. Since the arrival of humans approximately 2,000 years ago, lemurs have become restricted to 10% of the island, or approximately 60,000 square kilometers (23,000 sq mi), and many face extinction. Concerns over lemur conservation have affected lemur taxonomy, since distinct species receive increased conservation attention compared to subspecies.