Allen's swamp monkey
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| Allen's swamp monkey[1] | |
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| At the Lincoln Park Zoo, Chicago | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Infraclass: | Placentalia |
| Order: | Primates |
| Family: | Cercopithecidae |
| Subfamily: | Cercopithecinae |
| Tribe: | Cercopithecini |
| Genus: | Allenopithecus Lang, 1923 |
| Species: | A. nigroviridis
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| Binomial name | |
| Allenopithecus nigroviridis (Pocock, 1907)
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| Allen's swamp monkey range | |
Allen's swamp monkey (Allenopithecus nigroviridis) is a species of Old World monkey and the only member of the genus Allenopithecus. Phylogenetically, it is a sister clade to the guenons,[3] but differs in dentition and habits.
Allen's swamp monkey was named after American zoologist Joel Asaph Allen.[4]
Range
[edit]Allen's swamp monkey lives in the Congo Basin, with its range spanning the Republic of Congo, Cameroon, and the west of the Democratic Republic of Congo.[5][6] Prior to the 1990s, its range was believed to be limited to the riparian forests and swamps adjacent to the lower Likouala-aux-Herbes, Oubangui, and Sangha rivers, however a discontinuous population was confirmed in the upper Sangha in 2006, about 100 km (62 mi) northwest of its previously recognized range.[7] It was recorded from Dzanga-Sangha Special Reserve in the Central African Republic in 2016.[2]
Description
[edit]Allen's swamp monkey has a stocky build,[8] differing from the typically gracile bodies of other members of Cercopithecini.[9] It can reach a full body length from 45 to 60 cm (18 to 24 in),[citation needed] with a roughly 50 cm (20 in) long tail.[8] Males, weighing up to 6.0 kg (13.2 lb), are substantially larger than the females, which only weigh up to 3.7 kg (8.2 lb).[8] Allen's swamp monkey has a generalized skeleton that facilitates both arboreal and terrestrial locomotion.[9] With the exception of the free thumb, the fingers are webbed between the proximal phalanges, which may be an adaptation to its palustral lifestyle.[10]
Behavior
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Allen's swamp monkey is a diurnal animal and regularly looks for food on the ground. It inhabits swampy, water-rich areas and can swim well, diving to avoid danger. It lives in social groups of up to 40 animals, communicating with different calls, gestures, and touches.
Its diet consists of fruits and leaves, as well as beetles and worms.
Little is known about the mating habits of this species. The females bear young, which are weaned around three months old and are mature after three to five years. Its lifespan can be as long as 28 years.[5] Raptors, and snakes are the natural predators of Allen's swamp monkey. It is also hunted for its meat.
References
[edit]- ^ Groves, C. P. (2005). "Order Primates". In Wilson, D. E.; Reeder, D. M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 153. ISBN 978-0-8018-8221-0. OCLC 62265494.
- ^ a b Maisels, F.; Mittermeier, R.A.; Oates, J.F.; Hart, J. (2020). "Allenopithecus nigroviridis". IUCN Red List of Threatened Species. 2020 e.T865A166606573. doi:10.2305/IUCN.UK.2020-1.RLTS.T865A166606573.en. Retrieved 19 November 2021.
- ^ Perelman, Polina; Johnson, Warren E.; Roos, Christian; Seuánez, Hector N.; Horvath, Julie E.; Moreira, Miguel A. M.; Kessing, Bailey; Pontius, Joan; Roelke, Melody; Rumpler, Yves; Schneider, Maria Paula C.; Silva, Artur; O'Brien, Stephen J.; Pecon-Slattery, Jill (17 March 2011). "A Molecular Phylogeny of Living Primates". PLOS Genetics. 7 (3) e1001342. doi:10.1371/journal.pgen.1001342. PMC 3060065. PMID 21436896.
- ^ Beolens, Bo; Watkins, Michael; Grayson, Michael (2009). The Eponym Dictionary of Mammals. Johns Hopkins University Press. p. 8. ISBN 978-0-8018-9533-3.
- ^ a b "Allen's swamp monkey". Smithsonian's National Zoo. 2016-04-25. Retrieved 2023-09-12.
- ^ "Allen's Swamp Monkey Characteristics | Allenopithecus nigroviridis Facts". Bio Explorer. Retrieved 2023-09-12.
- ^ Maisels, F.; Blake, S.; Fay, M.; Mobolambi, G.; Yako, V. (August 2006). "A Note on the Distribution of Allen's Swamp Monkey, Allenopithecus nigroviridis, in Northwestern Congo". Primate Conservation. 21: 93–95. doi:10.1896/0898-6207.21.1.93.
- ^ a b c Rowe, N.; Goodall, J. (1999). The pictorial guide to the living primates (2nd ed.). Charlestown, Rhode Island: Pogonias Press. p. 147. ISBN 0-9648825-1-5.
- ^ a b Lo Bianco, S.; Masters, J.C.; Sineo, L. (November 2017). "The evolution of the Cercopithecini: a (post)modern synthesis". Evolutionary Anthropology: Issues, News, and Reviews. 26 (6): 336–349. doi:10.1002/evan.21567.
- ^ Hill, W.C.O. (1964). "XXI.—The External Anatomy of Allenopithecus". Proceedings of the Royal Society of Edinburgh. Section B. Biology. 68 (4): 302–326. doi:10.1017/S0080455X00001120.
