Western lesser bamboo lemur | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Primates |
Suborder: | Strepsirrhini |
Family: | Lemuridae |
Genus: | Hapalemur |
Species: | H. occidentalis |
Binomial name | |
Hapalemur occidentalis | |
Distribution of H. occidentalis [1] |
The western lesser bamboo lemur (Hapalemur occidentalis), also known as the northern bamboo lemur, western gentle lemur, or Sambirano lesser bamboo lemur, [4] is a species of bamboo lemur endemic to Madagascar.
The total length of this primate is 55–67 cm (22–26 in), more than half of which is tail, and average weight is just under 1 kilogram (2.2 lb). [5]
It lives in several discontinuous areas in northern and western Madagascar including Ankarana and Analamerana in the north, Sambirano and the Ampasindava Peninsula in the north-west, and various areas in the west between the Mahavany and Tsiribihina Rivers. [5] [6] This lemur has been reported from eight national parks (Ankarana, Baie de Baly, Mananara-Nord, Marojejy, Masoala, Sahamalaza-Iles Radama, Tsingy de Namoroka and Zahamena), two strict nature reserves (Tsaratanana and Zahamena), and eight special reserves (Ambatovaky, Analamerana, Anjanaharibe-Sud, Bemarivo, Kasijy, Maningoza, Manongarivo, and Marotandrano). [1]
Preferred habitat is dry deciduous forest and humid forest which have areas of bamboo and bamboo vines; but they can exist in stands of bamboo surrounded by rice fields and other agricultural land. Lives in groups of six individuals and tends to be active at night. Females have a gestation period of 137 to 140 days and give birth, usually to one infant, from October through to January. Food includes fruit, liana flowers and bamboo. Bamboo species include Dendrocalamus giganteus , Ochlandra capitata and Phyllostachys aurea . It co-exists with other species of lemurs. [1]
This species is listed by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) on Appendix 1 and the International Union for Conservation of Nature (IUCN) categorise this species as vulnerable. [1] [2] As long as there is some bamboo, the western lesser bamboo lemur is able survive in a degraded habitat. Burning the forest for livestock pasture is the major concern for this species as well as charcoal production and mining in Ankarana. In Makira hunting with firearms, machetes and slingshots occurs. [1] There are eighteen individuals in European zoos. [1]
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 Madagascar subhumid forests are a tropical moist broadleaf forest ecoregion that covers most of the Central Highlands of the island of Madagascar. They are included in the WWF's Global 200 list of outstanding ecoregions. Most of the original habitats have been lost due to human pressure.
The bamboo lemurs or gentle lemurs are the lemurs in genus Hapalemur. These medium-sized primates live exclusively on Madagascar.
The Sambirano mouse lemur is a small, recently discovered primate and like the other mouse lemurs can only be found on the island of Madagascar. The dorsal side is both cinnamon and rufous-cinnamon and is grey ventrally. It has vibrissae that are dark in color.
Ankarana Special Reserve in northern Madagascar was created in 1956. It is a small, partially vegetated plateau composed of 150-million-year-old middle Jurassic limestone. With an average annual rainfall of about 2,000 millimetres (79 in), the underlying rocks have been eroded to produce caves and feed subterranean rivers—a karst topography. The rugged relief and the dense vegetation have helped protect the region from human intrusion.
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The Madagascar dry deciduous forests represent a tropical dry forest ecoregion situated in the western and northern part of Madagascar. The area has high numbers of endemic plant and animal species but has suffered large-scale clearance for agriculture. They are among the world's richest and most distinctive dry forests and included in the Global 200 ecoregions by the World Wide Fund. The area is also home to distinctive limestone karst formations known as tsingy, including the World Heritage Site of Bemaraha.
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 northern rufous mouse lemur, northern brown mouse lemur, or Tavaratra mouse lemur is found in northern Madagascar from the Ankarana Special Reserve in the west to the Manambato River in the northeast, and up to the Irodo River in the north of the Analamerana Special Reserve. The complete distribution range of M. tavaratra is still to be defined as some areas surrounding the described distribution have not been visited yet. For example, M. tavaratra has been reported to possibly occur from the Irodo up to the Montagne des Français. Its known distribution cover four protected areas – the Ankarana Special Reserve, and the Analamerana Special Reserve both managed by Madagascar National Parks, the Loky-Manambato protected area (Daraina), and the Andavakoeira-Andrafiamena protected area, both Managed by the NGO Fanamby
The Amber Mountain fork-marked lemur, also known as the Montagne d'Ambre fork-crowned lemur or Tanta, is a small primate, and like the other lemurs, can only be found on the island of Madagascar. The species is named after the Amber Mountain National Park where they are found.
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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.
The Sambirano woolly lemur, also known as the Sambirano avahi or unicolor woolly lemur, is a species of woolly lemur native to western Madagascar.
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