Golden-mantled tamarin

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Golden-mantled tamarin [1] [2]
Saguinus tripartitus - Golden-mantled Tamarin.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Haplorhini
Infraorder: Simiiformes
Family: Callitrichidae
Genus: Leontocebus
Species:
L. tripartitus
Binomial name
Leontocebus tripartitus
Saguinus tripartitus distribution.svg
Geographic range

The golden-mantled tamarin (Leontocebus tripartitus) is a tamarin species from South America. It is found in Ecuador and Peru, specifically in the upper Amazon (lowland), east of the Andes in Ecuador, and Northeast Peru; between the Rio Curaray and Rio Napo in Peru.

Contents

Taxonomic classification

There has been some debate over the placing of L. tripartitus. In field observations in South America, scientists compared feeding habits and heights between golden-mantled tamarins (L. tripartitus) and brown-mantled tamarins ( Leontocebus fuscicollis ) and they concluded that patterns of height were very similar to those observed in L. fuscicollis. The similarity and the lack of evidence for sympatry with either L. fuscicollis or the black-mantled tamarin ( Leontocebus nigricollis ) led to the suggestion that L. tripartitus should be reconsidered as a subspecies of L. fuscicollis rather than a species on its own; alternatively, other subspecies of L. fuscicollis should be raised in taxonomic rank. [4] It is currently considered a separate species within the saddle-back tamarin genus Leontocebus. [5] [6]

Description

This tamarin measures 218–240 mm from the tip of the nose to the beginning of the tail and has a tail length of 316–341 mm. Its ear length is 31–32 mm. The head is black, with a black collar of hair continuous under the throat. The muzzle and sometimes face are pure white, and the neck has a ruff of bright golden to creamy fur dorsally, sharply contrasting with the black crown. Its underparts are orange. [7] The long tail is not prehensile, as in all tamarins, and the large eyes face forward. The species is monomorphic. It has large canines and claw-like nails on all digits except the opposable.

Behavior

The golden-mantled tamarin is an arboreal, diurnal species ranging through the understory, moving by quadrupedal walk and leap, mainly on small horizontal supports. Leaping is the main gap-crossing mode of locomotion, though it decreases in proportion with a higher use of the upper forest layers. [8] It forages most actively between 4–10 meters off the forest floor, and eats mainly fruit, nectar and insects but also consumes gum from either natural holes or holes created by the pygmy marmoset. Due to its small body size, limited gut volume, and rapid rate of food passage, tamarins require a diet high in nutrient quality and available energy. [9] Water accumulated on leaves, in flower cups, or in hollows is lapped; dew and moisture from a hand previously dipped in water are licked. Callitrichids do not suck up liquids or hold vessels to the mouth as do most cebids and catarrhines. The faculty of suckling, a specialization of the young, disappears soon after weaning. [10] During the dry season they are known to be less active and more social due to low food sources. [4]

Chemosignalling

Marmosets and tamarins possess a rich repertoire of chemosignalling behaviors. These are associated closely with investigatory behaviors. In all species, the most conspicuous and most frequently seen chemosignalling behaviors are stereotyped scent-marking patterns involving the circumgenital and suprapubic glands, urine, and the sternal gland. Most scent marking is performed on items in the environment. In addition, marking the bodies of partners has also been reported for several species. [9]

Reproduction

Tamarins live in small groups of usually four to nine individuals and have some interesting reproductive traits. They give birth to twins, and only one female (the dominant individual) breeds in any single social group. The hormones present in the dominant female's urine suppress the reproductive cycles in the subordinate females of the group. [9] Groups are polygynandrous.

Gestation averages at 140 days. [10] Callitrichids in general are unique in the intensity of their relations to infants. The newborns may be carried from the first day by group members other than the mother (including males in the group). Weaning occurs from 9–13 weeks, when most of the food ingested is obtained through sharing or stealing. At the juvenile stage (beginning at 4–7 months) 'twin fights' may occur, especially between same-sexed twins, to determine status differences. The sub-adult stage begins at 9–14 months, and the young animal has the size and appearance of an adult. Puberty takes place at this time but the young do not reproduce. At the adult stage (beginning at 12–21 months), sexual maturity is attained. [9]

Conservation status

In 2008, Leontocebus tripartitus was assessed by the IUCN Red List. This species is listed as Near Threatened in light of a projected future decline of around 25% over the course of three generations (18 years) due to anticipated high rates of deforestation. The forests where L. tripartitus occurs along the Rio Yasuni in Ecuador are remote and have, to date, suffered little impact from human activities, other than small localized encampments for petroleum prospecting. However, the occurrence of petroleum in the region, resulting in the current construction of the Pompeya-Iro highway, is reason for some concern for the future of these forests and their wildlife. [3]

Related Research Articles

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

The Callitrichidae are a family of New World monkeys, including marmosets, tamarins, and lion tamarins. At times, this group of animals has been regarded as a subfamily, called the Callitrichinae, of the family Cebidae.

<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, 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">Tamarin</span> Genus of New World monkeys

The tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus Saguinus. They are the first offshoot in the Callitrichidae tree, and therefore are the sister group of a clade formed by the lion tamarins, Goeldi's monkeys and marmosets.

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

The silvery marmoset is a New World monkey that lives in the eastern Amazon Rainforest in Brazil.

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

The black-tailed marmoset is a species of New World monkey from central South America, where it ranges from the south-central Amazon in Brazil, south through the Pantanal and eastern Bolivia, to the Chaco in far northern Paraguay. It is the southernmost member of the genus Mico and the only species where most of its range is outside the Amazon.

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

The black-tufted marmoset, also known as Mico-estrela in Portuguese, is a species of New World monkey that lives primarily in the Neo-tropical gallery forests of the Brazilian Central Plateau. It ranges from Bahia to Paraná, and as far inland as Goiás, between 14 and 25 degrees south of the equator, and can commonly be seen in the City of Rio de Janeiro where it was introduced. This marmoset typically resides in rainforests, living an arboreal life high in the trees, but below the canopy. They are only rarely spotted near the ground.

<span class="mw-page-title-main">Golden-headed lion tamarin</span> Species of New World monkey

The golden-headed lion tamarin, also the golden-headed tamarin, is a lion tamarin endemic to Brazil. It is found only in the lowland and premontane tropical forest fragments in the state of Bahia, and therefore is considered to be an endangered species. It lives at heights of 3–10 metres (9.8–32.8 ft). Its preferred habitat is within mature forest, but with habitat destruction this is not always the case. Several sources seem to have different information on the number of individuals within a group, and the type of social system that may be apparent. The golden-headed lion tamarin lives within group sizes ranging from 2 to 11 individuals, with the average size ranging from 4 to 7. According to various sources, the group may consist of two adult males, one adult female, and any immature individuals, one male and one female and any immature individuals, or there may be one producing pair and a varying number of other group members, usually offspring from previous generations. There is not much known on its mating system, but according to different sources, and information on the possible social groups, it can be assumed that some may practice monogamous mating systems, and some may practice polyandrous mating systems. Both males and females invest energy in caring for the young, and all members of the group also help with juvenile care.

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

The black-mantled tamarin, Leontocebus nigricollis, is a species of saddle-back tamarin from the northwestern Amazon in far western Brazil, southeastern Colombia, north-eastern Peru and eastern Ecuador.

<span class="mw-page-title-main">Brown-mantled tamarin</span> Species of New World monkey

The brown-mantled tamarin, also known as Spix's saddle-back tamarin, is a species of saddle-back tamarin. This New World monkey is found in the Southern American countries of Bolivia, Brazil and Peru. This omnivorous member of the Callitrichidae family is usually found in smaller groups ranging between 4 and 15 individuals. This species communicates vocally and largely rely their olfactory system. The brown-mantled tamarin is considered as a species of Least Concern by the International Union for Conservation of Nature, despite a decreasing population and being threatened by poaching, habitat loss and capture for the illegal pet trade.

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

Graells's tamarin, Leontocebus nigricollis graellsi, is a subspecies of the black-mantled tamarin from the northwestern Amazon in southeastern Colombia, eastern Ecuador and northeastern Peru. It differs from other black-mantled tamarins in having a dull olive-brown lower back, rump and thighs. However, molecular genetic analysis does not support treating Graell's tamarin as a separate species from the black-mantled tamarin.

<span class="mw-page-title-main">White-mantled tamarin</span> Subspecies of New World monkey

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<i>Mico</i> (genus) Genus of New World monkeys

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<span class="mw-page-title-main">Saddle-back tamarin</span> Genus of New World monkeys

The saddle-back tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus or subgenus Leontocebus. They were split from the tamarin genus Saguinus based on genetic data and on the fact that saddle-back tamarins are sympatric with members of Saguinus to a greater extent than would be expected from two members of the same genus. However, this argument can be circular, as several other mammals show sympatry among congeneric species, such as armadillos, spotted cats, and fruit-eating bats. Some authors still consider Leontocebus to be a subgenus of Saguinus.

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

Cruz Lima's saddle-back tamarin is a species of saddle-back tamarin, a type of small monkey from South America. Cruz Lima's saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, L. fuscicollis. It lives in Brazil in the area near the Inauini River. Its fur is mostly reddish orange, with a black tail and white eyebrows. The IUCN rates it as least concern from a conservation standpoint.

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

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<span class="mw-page-title-main">Andean saddle-back tamarin</span> Species of New World monkey

The Andean saddle-back tamarin is a species of saddle-back tamarin, a type of small monkey from South America. The Andean saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, L. fuscicollis. It is closely related to Illiger's saddle-back tamarin. It is endemic to Peru and its type locality is in the Department of Huanuco, Peru.

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

Geoffroy's saddle-back tamarin is a species of saddle-back tamarin, a type of small monkey from South America. Geoffroy's saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, L. fuscicollis. It lives in Loreto, Peru.

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

Weddell's saddle-back tamarin is a species of saddle-back tamarin, a type of small monkey from South America. Weddell's saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, L. fuscicollis. It lives in Brazil, Bolivia and Peru, with the type locality being in Bolivia.

<span class="mw-page-title-main">Lesson's saddle-back tamarin</span> Species of tamarin

Lesson's saddle-back tamarin is a species of saddle-back tamarin, a type of small monkey from South America. Lesson's saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, L. fuscicollis. Genetic analysis showed it to be more closely related to the black-mantled tamarin than to the brown-mantled tamarin. Its type locality is in Colombia, in Plaines de Mocoa, Putumayo, between the Rio Putumayo and Rio Caqueta. It also lives in Brazil.

<span class="mw-page-title-main">Red-mantled saddle-back tamarin</span> Species of New World monkey

The red-mantled saddle-back tamarin is a species of saddle-back tamarin, a type of small monkey from South America. The red-mantled saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, L. fuscicollis. It lives in Ecuador and Peru and its type locality is in Peru, near the confluence of the Amazon River and the Napo River.

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. p. 136. ISBN   0-801-88221-4. OCLC   62265494.
  2. ↑ Rylands AB, Mittermeier RA (2009). "The Diversity of the New World Primates (Platyrrhini)". In Garber PA, Estrada A, Bicca-Marques JC, Heymann EW, Strier KB (eds.). South American Primates: Comparative Perspectives in the Study of Behavior, Ecology, and Conservation. Springer. pp. 23–54. ISBN   978-0-387-78704-6.
  3. 1 2 de la Torre, S.; Heymann, E.W.; Rylands, A.B. (2020). "Leontocebus tripartitus". IUCN Red List of Threatened Species . 2020: e.T19824A17930113. doi: 10.2305/IUCN.UK.2020-3.RLTS.T19824A17930113.en . Retrieved 19 November 2021.
  4. 1 2 Heymann, E.W. (2000). "Field observations of the golden-mantled tamarin, Saguinus tripartitus, on the Rio Curaray, Peruvian Amazonia". Folia Primatologica; International Journal of Primatology. 71 (6): 392–398. doi:10.1159/000052736. PMID   11155027. S2CID   10598582.
  5. ↑ Rylands, Anthony B.; Eckhard W. Heymann; Jessica Lynch Alfaro; Janet C. Buckner; Christian Roos; Christian Matauschek; Jean P. Boubli; Ricardo Sampaio; Russell A. Mittermeier (2016). "Taxonomic Review of the New World Tamarins (Primates: Callitrichidae)" (PDF). Zoological Journal of the Linnean Society. 177 (4): 1003–1028. doi:10.1111/zoj.12386 . Retrieved 2020-04-19.
  6. ↑ Porter, Leila M.; Dacier, Anand; Garber, Paul A. (2016). Rowe, Noel; Myers, Marc (eds.). All the World's Primates. Pogonias Press. pp. 339–340. ISBN   9781940496061.
  7. ↑ Emmons, Louise (November 1997). Neotropical Rainforest Mammals: A Field Guide (Second ed.). The University of Chicago Press. p. 112.
  8. ↑ Youlatos, D (October–December 1999). "Comparative locomotion of six sympatric primates in Ecuador". Annales des Sciences Naturelles - Zoologie et Biologie Animale. 20 (4): 161–168. doi:10.1016/S0003-4339(00)88884-X.
  9. 1 2 3 4 Rylands, Anthony B. (November 1993). Marmosets and Tamarins: Systematics, Behaviour, and Ecology. Oxford University Press. pp. 58, 129–273. ISBN   0-19-854022-1.
  10. 1 2 Hershkovitz, E.W. (November 1977). Living New World Monkeys (Platyrrhini) . The University of Chicago Press. pp.  440–449. ISBN   0-226-32788-4.


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