Grey-crowned Central American squirrel monkey

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Grey-crowned Central American squirrel monkey [1]
Central American Squirrel Monkey 3.jpeg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Haplorhini
Infraorder: Simiiformes
Family: Cebidae
Genus: Saimiri
Species:
Subspecies:
S. o. citrinellus
Trinomial name
Saimiri oerstedii citrinellus
Thomas, 1904 [3]
Saimiri oerstedii Range Map with subspecies 3.PNG
S. o. citrinellus range shown in red

The grey-crowned Central American squirrel monkey (Saimiri oerstedii citrinellus) is a subspecies of the Central American squirrel monkey. Its range is restricted to the Pacific coast of central Costa Rica. The northern end of its range is the Rio Tulin and the southern end of its range is the Rio Grande de Terraba. South of the Rio Grande de Terraba, it is replaced by the black-crowned Central American squirrel monkey, S. oerstedii oerstedii. Populations are very fragmented, and the subspecies does not occur in all locations within its general range. It is the subspecies of Central American squirrel monkey seen in Manuel Antonio National Park in Costa Rica. [4] [5]

The grey-crowned Central American squirrel monkey is orange or reddish-orange in color, with a black cap. It differs from the black-crowned Central American squirrel monkey in that the limbs and underparts of the grey-crowned Central American squirrel monkey are less yellowish. Some authorities also consider the cap on the grey-crowned Central American squirrel monkey to be less black than that of the black-crowned Central American squirrel monkey, but other authorities regard this as a feature that varies by age rather than by subspecies. [4]

Adults reach a length of between 266 and 291 millimetres (10.5 and 11.5  in ), excluding tail, and a weight between 600 and 950 grams (21 and 34  oz ). [6] [7] The tail is longer than the body, and between 362 and 389 mm (14.3 and 15.3 in) in length. [6] Males have an average body weight of 829 g (29.2 oz) and females have an average body weight of 695 g (24.5 oz). [7]

The grey-crowned Central American squirrel monkey is arboreal and diurnal. It lives in groups containing several adult males, several adult females and juveniles. It is omnivorous, with a diet that includes insects and insect larvae (especially grasshoppers and caterpillars), spiders, fruit, leaves, bark, flowers and nectar. It also eats small vertebrates, including bats, birds, lizards and frogs. It finds its food foraging through the lower and middle levels of the forest. [6] [8]

The grey-crowned Central American squirrel monkey was assessed by the International Union for Conservation of Nature (IUCN) as Endangered. This was an improvement from prior assessments, in which the subspecies was assessed as "critically endangered". It is listed as endangered to a small and severely fragmented range amounting to only about 3,500 square kilometers (1,400 sq mi), and continuing habitat loss. [2] There are conservation efforts within Costa Rica to try to preserve this monkey from extinction. [9]

Related Research Articles

<span class="mw-page-title-main">Cebidae</span> Family of New World monkeys

The Cebidae are one of the five families of New World monkeys now recognised. Extant members are the capuchin and squirrel monkeys. These species are found throughout tropical and subtropical South and Central America.

<span class="mw-page-title-main">Panamanian white-faced capuchin</span> Species of primate

The Panamanian white-faced capuchin, also known as the Panamanian white-headed capuchin or Central American white-faced capuchin, is a medium-sized New World monkey of the family Cebidae, subfamily Cebinae. Native to the forests of Central America, the white-faced capuchin is important to rainforest ecology for its role in dispersing seeds and pollen.

<span class="mw-page-title-main">Geoffroy's tamarin</span> Species of New World monkey

Geoffroy's tamarin, also known as the Panamanian, red-crested or rufous-naped tamarin, is a tamarin, a type of small monkey, found in Panama and Colombia. It is predominantly black and white, with a reddish nape. Diurnal, Geoffroy's tamarin spends most of its time in trees, but does come down to the ground occasionally. It lives in groups that most often number between three and five individuals, and generally include one or more adults of each sex. It eats a variety of foods, including insects, plant exudates, fruits and other plant parts. Insects and fruits account for the majority of its diet, but exudates are also important. But since its teeth are not adapted for gouging trees to get to the sap, it can only eat exudates when they are easily available.

<span class="mw-page-title-main">Squirrel monkey</span> Genus of mammals belonging to the capuchin and squirrel monkey family of primates

Squirrel monkeys are New World monkeys of the genus Saimiri. Saimiri is the only genus in the subfamily Saimirinae. The name of the genus is of Tupi origin and was also used as an English name by early researchers.

<span class="mw-page-title-main">Common squirrel monkey</span> Species of mammal

Common squirrel monkey is the traditional common name for several small squirrel monkey species native to the tropical areas of South America. The term common squirrel monkey had been used as the common name for Saimiri sciureus before genetic research by Jessica Lynch Alfaro and others indicated S. scuireus covered at least 3 and possibly 4 species: the Guianan squirrel monkey, Humboldt's squirrel monkey and Collins' squirrel monkey. The Ecuadorian squirrel monkey, generally regarded as a subspecies of Humboldt's squirrel monkey, had also been sometimes proposed as a separate species that had originally been included within the term "common squirrel monkey."

<span class="mw-page-title-main">Black squirrel monkey</span> Species of New World monkey

The black squirrel monkey, also known as the blackish squirrel monkey or black-headed squirrel monkey, is a small New World primate, endemic to the central Amazon in Brazil. It largely resembles the female of the far more common Bolivian squirrel monkey, though the latter lacks the black central back.

<span class="mw-page-title-main">Black-capped squirrel monkey</span> Species of New World monkey

The black-capped squirrel monkey is a species of New-World monkey native to the upper Amazon basin in Bolivia, western Brazil and eastern Peru. They weigh between 365 and 1,135 g and measure, from the head to the base of the tail, between 225 and 370 mm. Black-capped squirrel monkeys are primarily tree-dwelling and are found in both native and plantation forests as well as some farmed areas near running water. Their diet is omnivorous and mostly consists of flowers, fruit, leaves, nuts, seeds, insects, arachnids, eggs and small vertebrates. They mostly live in female-dominated troops of around 40 to 75 monkeys, with males having been observed to disperse to live in all-male troops after reaching sexual maturation. Their current conservation status according to the IUCN is 'Least Concern'. The species belongs to the genus Saimiri and has two subspecies, S. b. boliviensis and S. b. peruviensis.

<span class="mw-page-title-main">White-eared titi monkey</span> Species of New World monkey

The white-eared titi monkey also known as the Bolivian titi or Bolivian gray titi, is a species of titi monkey, a type of New World monkey, from eastern Bolivia and an area of western Brazil. The species has a range that extends east from the Manique River in Beni Department, Bolivia to southern Rondônia in Brazil. The southern end of its range includes forests around the city of Santa Cruz de la Sierra.

<span class="mw-page-title-main">Central American squirrel monkey</span> Species of New World monkey

The Central American squirrel monkey, also known as the red-backed squirrel monkey, is a squirrel monkey species from the Pacific coast of Costa Rica and Panama. It is restricted to the northwestern tip of Panama near the border with Costa Rica, and the central and southern Pacific coast of Costa Rica, primarily in Manuel Antonio and Corcovado National Parks.

<span class="mw-page-title-main">Yucatán black howler</span> Species of New World monkey

The Yucatán black howler, or Guatemalan black howler, is a species of howler monkey, a type of New World monkey, from Central America. It is found in Belize, Guatemala and Mexico, in and near the Yucatán Peninsula. It lives in evergreen, semideciduous and lowland rain forests. It is also known as the baboon in Belize, although it is not closely related to the baboons in Africa.

<span class="mw-page-title-main">Panamanian night monkey</span> Species of New World monkey

The Panamanian night monkey or Chocoan night monkey is a species of night monkey formerly considered a subspecies of the gray-bellied night monkey of the family Aotidae. Its range consists of Panama and the Chocó region of Colombia. There are also unconfirmed reports of its occurrence in Costa Rica, especially on the Caribbean coast of Costa Rica. The species definitely occurs in the Atlantic lowlands of Panama close to the Costa Rica border.

<span class="mw-page-title-main">Black-crowned Central American squirrel monkey</span> Subspecies of New World monkey

The black-crowned Central American squirrel monkey is a subspecies of the Central American squirrel monkey. Its range is restricted to the Pacific coast of western Panama to the western portion of the Chiriquí Province and of southern Costa Rica, south of the Rio Grande de Terraba, including the Osa Peninsula. It is the subspecies of Central American squirrel monkey seen in Corcovado National Park in Costa Rica. Its type locality is David, Panama, but its range apparently no longer extends that far east.

<span class="mw-page-title-main">Humboldt's squirrel monkey</span> Species of New World monkey

Humboldt's squirrel monkey is a species of squirrel monkey from Brazil, Colombia, Ecuador, Peru and Venezuela. It had previously been considered a subspecies of the common squirrel monkey, S. scuireus, but was elevated to full species status based on a genetic study by Carretero-Pinzón in 2009. A genetic study by Jessica Lynch Alfaro, et al indicated that the Ecuadorian squirrel monkey may be synonymous with Saimiri cassiquiarensis. As of 2018, the Ecuadorian squirrel monkey is generally regarded as a subspecies of Humboldt's squirrel monkey, S. cassiquiarensis macrodon.

<span class="mw-page-title-main">Guianan squirrel monkey</span> Species of New World monkey

The Guianan squirrel monkey is a species of squirrel monkey from Guiana, Venezuela and Brazil. S. sciureus formerly applied to Humboldt's squirrel monkey and Collins' squirrel monkey, but genetic research in 2009 and 2015 revealed that these are distinct species.

<span class="mw-page-title-main">Ecuadorian squirrel monkey</span> Subspecies of New World monkey

The Ecuadorian squirrel monkey is a type of squirrel monkey. It had been considered a subspecies of the Guianan squirrel monkey, Saimiri sciureus, but was elevated to a full species, S. macrodon, based on a 2009 study by Carretero-Pinzón, et al. Based on subsequent genetic research by Jessica Lynch Alfaro, et al it was again reclassified as a subspecies of Humboldt's squirrel monkey.

References

  1. Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 138–139. ISBN   0-801-88221-4. OCLC   62265494.
  2. 1 2 Solano-Rojas, D.; Mittermeier, R.A. (2020). "Saimiri oerstedii ssp. citrinellus". IUCN Red List of Threatened Species . 2020: e.T19841A17982683. doi: 10.2305/IUCN.UK.2020-3.RLTS.T19841A17982683.en .
  3. Thomas, Oldfield (1904). "New forms of Saimiri, Saccopteryx, Balantiopteryx, and Thrichomys from the Neotropical region". Annals and Magazine of Natural History. Ser. 7. 13 (76): 250–251. doi:10.1080/00222930409487064.
  4. 1 2 Rylands, A.; Groves, C.; Mittenmeier, R.; Cortes-Ortiz, L.; Hines, J. (2006). "Taxonomy and Distributions of Mesoamerican Primates". In Estrada, A.; Garber, P.A.; Pavelka, M.S.M.; Luecke, L. (eds.). New Perspectives in the Study of Mesoamerican Primates. New York: Springer. pp. 37–39. ISBN   978-0-387-25854-6.
  5. Sierra, C.; Jimenez, I.; Altrichter, M.; Fernandez, M.; Gomez, G.; Gonzalez, J.; Hernandez, C. Herrera; H., Jimenez; B., Lopez-Arevalo; H., Millan; J., Mora, G. & Tabilo, E. (June 2003). "New Data on the Distribution and Abundance of Saimiri oerstedii citrinellus" (PDF). Primate Conservation (19): 5–9. Archived from the original (PDF) on 28 September 2007.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  6. 1 2 3 Emmons, L. (1997). Neotropical Rainforest Mammals A Field Guide (Second ed.). Chicago, Ill. ;London: Univ. of Chicago Pr. pp. 126–127. ISBN   0-226-20721-8.
  7. 1 2 Jack, K. (2007). "The Cebines". In Campbell, C.; Fuentes, A.; MacKinnon, K.; Panger, M.; Bearder, S. (eds.). Primates in Perspective. New York: Oxford University Press. pp. 107–120. ISBN   978-0-19-517133-4.
  8. Wainwright, M. (2002). The Natural History of Costa Rican Mammals. Miami, FL: Zona Tropical. pp. 131–134. ISBN   0-9705678-1-2.
  9. "Save the Mono Titi Manuel Antonio Costa Rica" . Retrieved 14 December 2008.