Gray snub-nosed monkey
Gray snub-nosed monkey[1] | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Primates |
Suborder: | Haplorhini |
Infraorder: | Simiiformes |
Family: | Cercopithecidae |
Genus: | Rhinopithecus |
Species: | R. brelichi
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Binomial name | |
Rhinopithecus brelichi Thomas, 1903
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Gray snub-nosed monkey range | |
Synonyms | |
Pygathrix brelichi Thomas, 1903[3] |
The gray snub-nosed monkey (Rhinopithecus brelichi),
Description
Adults are covered with long, fine hair, generally grading from brown on its upper body to gray on its lower body, with a white patch between its shoulder blades.[6] Its head, neck, and ends of its limbs are black, except for a golden brow.[6] It has a golden chest, and chestnut fur on its inner knees and inner sides of its upper arms.[7] Its face is bare bluish-white skin, pink around the eyes and mouth, and has a shelf-like brow and reduced nasal bones, giving it a snub-nosed appearance.[6][7] Juveniles are shades of gray with patterns changing with age. Adult males are brighter colored than adult females, and have white skin on prominent nipples.[6] Size data is limited, but two adult male specimens weighed 14.5 kg on average, and an adult female specimen weighed 8 kg, with adult length excluding tail ranging from 64–73 cm, and tail length ranging from 70–97 cm.[6][7]
Distribution
The confirmed distribution range of the gray snub-nosed monkey is limited to the Fanjingshan National Nature Reserve in the Wuling Mountains in Guizhou province, China.[4] There is unpublished evidence that 20 individuals moved from the Nature Reserve to an adjacent community forest (Lijiadashan), and there are unconfirmed anecdotal reports of a population in Jinfoshan Nature Reserve.[2]
Habitat
Its habitat consists of
Behavior
The diurnal species is considered semi-terrestrial, primarily inhabits trees where available.[8] Locomotion includes a mix of "quadrupedal walking, climbing, leaping, semi-brachiation (tree-swinging) and occasional full brachiation."[6]
It feeds on a variety of young leaves, leaf and flower buds, bark, fruits, certain petioles (e.g. Fagus longipetiolata), seeds (e.g. Prunus spp. and Sorbus spp.), and insect larvae.[6] Seasonality of the forest means the monkey's diet changes seasonally as well; it may be 7% leaves in the first three months of the year, and 93% in the next three. Fruits and seeds can constitute 35% of the diet in July to September.[10]
Its social structure is based on small groups that band together into larger troops of up to 400 or more individuals, traveling, feeding and sleeping.[2] The groups typically have 5–10 members, comprising one dominant male and several females and their young.[6] There are also all-male bachelor groups of two to five adult or sub-adult males, which typically mill about the periphery of a troop.[6] The groups split into large or smaller bands seasonally.[2]
Conservation status
Though legally protected, the gray snub-nosed monkey is threatened seriously due to habitat loss from forest clearing,
See also
References
- ^ OCLC 62265494.
- ^ a b c d e f g h Long, Y.; Li, B.; Zhou, J.; Ren, B.; Garber, A. L. (2022). "Rhinopithecus brelichi". IUCN Red List of Threatened Species. 2022: e.T19595A215621115. Retrieved 21 July 2022.
- ^ "Rhinopithecus brelichi". Integrated Taxonomic Information System. Retrieved 13 June 2021.
- ^ a b c "Common Names for Brelich's Snub-nosed Monkey (Pygathrix brelichi)". Encyclopedia of Life. Retrieved 16 December 2013.
- ^ .
- ^ ISBN 978-981-02-3131-6. Retrieved 16 December 2013.
- ^ a b c "Grey snub-nosed monkey photo – Rhinopithecus brelichi – G42086". ARKive. Wildscreen. Archived from the original on 2013-12-16. Retrieved 16 December 2013.
- ^ a b c "Facts about Brelich's Snub-nosed Monkey (Pygathrix brelichi)". Encyclopedia of Life. Retrieved 16 December 2013.
- ^ ISSN 0006-3207.
- ISBN 978-981-02-3131-6. Retrieved 16 December 2013.
- ^ "Fanjingshan Biosphere Reserve, China". UNESCO. August 2019. Retrieved 30 July 2021.
- ^ "Fanjingshan UNESCO World Heritage Center". UNESCO. Retrieved 30 July 2021.