Robinson's bandage langur

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Robinson's bandage langur
Robinson's lifelong in the Kaeng Krachan National Park in Thailand

Robinson's lifelong in the Kaeng Krachan National Park in Thailand

Systematics
Superfamily : Tailed Old World Monkey (Cercopithecoidea)
Family : Vervet monkey relatives (Cercopithecidae)
Subfamily : Common monkeys and colobus monkeys (Colobinae)
Sub tribus : Langur (Presbytina)
Genre : Boned langurs ( Presbytis )
Type : Robinson's bandage langur
Scientific name
Presbytis robinsoni
Thomas , 1910

Robinson's banded langur ( Presbytis robinsoni ) is a species of boned langur that occurs in the north of the Malay Peninsula from the Thai province of Phetchaburi in the north to the Malay state of Perak in the south.

features

Robinson's bandage langur is dark gray-brown to black-brown in color. The belly and the insides of the arms and legs are white up to the wrists and ankles, the chest, hands and feet are black. The face is also black, including the eyelids. Only the area around the mouth is whitish. There have also been reports of a whitish or light gray morph. The animals have one or two hair vertebrae on the top of their heads. The head-torso length is 43 to 61 centimeters, the tail is 61 to 84 centimeters long and the adult weight ranges from 5.8 to 8.2 kg.

Robinson's lavender lives in groups of 4 to 10 specimens with a male, several females and their young on tall trees in swampy peat forests and feeds mainly on fresh leaves and fruits. In addition, seeds, buds, flowers and mushrooms are consumed.

Systematics

The distribution area of ​​Robinson's banded langur on the Malay Peninsula

Robinson's bandana was first described scientifically in 1910 by the British zoologist Oldfield Thomas . It was considered one of three subspecies of the bandage langur ( Presbytis femoralis ). Its distribution area is, however, geographically separated from that of the nominate form , which only occurs in the extreme south of the Malay Peninsula , and it differs significantly from this in molecular biology ( mtDNA , cyt-b and D-Loop ). It is probably more closely related to the white-legged langur ( P. siamensis ) than to the nominate form of the white-legged langur . The white-legged langur and Robinson's white-legged langur separated evolutionarily about 2.5 million years ago. In June 2020, Robinson's bandana got the status of an independent species.

Danger

The IUCN estimates the population of Robinson's langur as potentially endangered (Near Threatened). The distribution area is highly fragmented. In Thailand the species is protected in two national parks, in Kaeng Krachan in the north and in Khao Sok in the middle of the distribution area, also in Myanmar in the national park Tanintharyi .

supporting documents

  1. ↑ a b c D. Zinner, GH Fickenscher & C. Roos: Family Cercopithecidae (Old World monkeys). Page 715 in Russell A. Mittermeier , Anthony B. Rylands & Don E. Wilson : Handbook of the Mammals of the World - Volume 3: Primates. Lynx Edicions, 2013 ISBN 978-8496553897
  2. ↑ Muhammad Abu Bakar Abdul-Latiff, Hanisah Baharuddin, Pazil Abdul-Patah & Badrul Munir Md-Zain: Is Malaysia's banded langur, Presbytis femoralis femoralis, actually Presbytis neglectus neglectus? Taxonomic revision with new insights on the radiation history of the Presbytis species group in Southeast Asia. Primates. 60 (1): 63-79. doi: 10.1007 / s10329-018-0699-y
  3. ↑ Andie Ang, Dewi Imelda Roesma, Vincent Nijman, Rudolf Meier, Amrita Srivathsan and Rizaldi. 2020. Faecal DNA to the Rescue: Shotgun Sequencing of Non-invasive Samples reveals Two Subspecies of Southeast Asian Primates to be Critically Endangered Species. Scientific Reports. 10, 9396. DOI: 10.1038 / s41598-020-66007-8
  4. ↑ Presbytis femoralis ssp. robin soni in the endangered Red List species the IUCN 2008. Posted by: Nijman, V., Geissman, T. & Meijaard, E., 2008. Accessed April 28, 2020th