Coati

Coati
White-nosed coati Nasua narica
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Procyonidae
Genus: Nasua and Nasuella
Range map

Coatis, genera Nasua and Nasuella, also known as the Brazilian aardvark, Mexican tejón, hog-nosed coon,[1] pizotes, crackoons and snookum bears, are members of the raccoon family (Procyonidae). They are diurnal mammals native to South America, Central America, and south-western North America. The word "coatimundi" (play /kˌɑːtɨˈmʌndi/) is a commonly used misnomer applied to solitary adult males of N. nasua.[citation needed] The term is reported to be derived from the Tupi language (Paraguay).[2]

Contents

Physical characteristics

Adult coatis measure 33 to 69 cm (13 to 27 in) from head to the base of the tail, which can be as long as their bodies. Coatis are about 30 cm (12 in) tall at the shoulder, and weigh between 2 and 8 kg (4.4 and 18 lb), about the size of a large house cat. Males can become almost twice as large as females and have large, sharp canine teeth. The above measurements are for the white-nosed and South America coatis. The Cozumel Island coati is in the lower range of these measurements, and the two mountain coatis are smaller.[3]

All coatis share a slender head with an elongated, flexible, slightly upward-turned nose, small ears, dark feet, and a long, non-prehensile tail used for balance and signaling.

Ring-tailed coatis have either a light brown or black coat, with a lighter under-part and a white-ringed tail in most cases. Coatis have a long brown tail with rings on it which are anywhere from starkly defined like a raccoon's to very faint. Like raccoons and unlike ring-tailed cats and cacomistles, the rings go completely around the tail. Coatis often hold the tail erect, and it used as such to keep troops of coatis together in tall vegetation. The tip of the tail can be moved a bit on its own, as is the case with cats, but it is not prehensile as is that of the kinkajou, another procyonid.

Coatis have bear- and raccoon-like paws, and coatis, raccoons, and bears walk plantigrade (on the soles of the feet, as do humans). Coatis have nonretractable claws. Coatis also are, in common with raccoons and other procyonids (and others in the order Carnivora and rare cases amongst other mammals), double-jointed and their ankles can rotate beyond 180°; they are therefore able to descend trees head first. Other animals living in forests have acquired some or all of these properties through convergent evolution, including members of the mongoose, civet, ferret-skunk, cat, and bear families. Some of these animals walk on the toes of the front paws and soles of the back paws.

The coati snout is long and somewhat pig-like (see Suidae) and extremely flexible and can be rotated up to 60° in any direction, the former being part of the reason for its nickname the hog-nosed raccoon. The nose is used to push objects and rub parts of their body. The facial markings include white markings around the eyes and on the ears and snout.

Coatis have strong limbs to climb and dig, and have a reputation for intelligence, like their fellow procyonid, the raccoon. They prefer to sleep or rest in elevated places and niches, like the rainforest canopy, in crudely-built sleeping nests. Coatis are active day and night.

Habitat and range

Overall, coatis are widespread, occupying habitats ranging from hot and arid areas to humid Amazonian rainforests or even cold Andean mountain slopes, including grasslands and bushy areas. Their geographical range extends from the southwestern U.S. (southern Arizona, New Mexico, and Texas) through northern Argentina. Around 10 coatis are thought to have formed a breeding population in Cumbria, UK.[4]

Taxonomy

The following species have been scientifically described:

The coati species cited above can be told apart by their size, build, and hide color, in addition to having differing geographical ranges.

Genetic evidence has suggested the genus Nasuella should be merged into Nasua, as the latter otherwise is paraphyletic.[3] Other genetic studies have shown the closest relatives of the coatis are the olingos.[5]

Lifespan

In the wild, coatis live for about seven to eight years, while in captivity they can live for up to 15 years.

Feeding habits

Coatis are omnivores; their diet consists mainly of ground litter invertebrates such as tarantula and fruit (Alves-Costa et al.. 2004, 2007, Hirsch 2007). They also eat small vertebrate prey, such as lizards, rodents, small birds, birds' eggs, and crocodile eggs. The snout, with a formidable sense of smell, assists the skilled paws in a hog-like manner to unearth invertebrates.

Behavior

Little is known about the behavior of the mountain coatis,[3] and the following is almost entirely about the coatis of the genus Nasua. Unlike most members of the raccoon family (Procyonidae), coatis are primarily diurnal. Coati females and young males up to two years of age are gregarious and travel through their territories in noisy, loosely-organized bands made up of four to 25 individuals, foraging with their offspring on the ground or in the forest canopy. Males over two years become solitary due to behavioural disposition and collective aggression from the females, and will join the female groups only during the breeding season.

When provoked, or for defense, coatis can be fierce fighters; their strong jaws, sharp canine teeth, and fast scratching paws, along with a tough hide sturdily attached to the underlying muscles, make it very difficult for potential predators (e.g., dogs or jaguars) to seize the smaller mammal.

Coatis communicate their intentions or moods with chirping, snorting, or grunting sounds. Different chirping sounds are used to express joy during social grooming, appeasement after fights, or to convey irritation or anger. Snorting while digging, along with an erect tail, states territorial or food claims during foraging. Coatis additionally use special postures or moves to convey simple messages; for example, hiding the nose between the front paws as a sign for submission; lowering the head, baring teeth, and jumping at an enemy signal an aggressive disposition. Individuals recognize other coatis by their looks, voices, and smells, the individual smell is intensified by special musk-glands on their necks and bellies.

Coatis from Panama are known to rub their own fur and that of other troop members with resin from Trattinnickia aspera trees, but its purpose is unclear. Some proposed possibilities are it serves as an insect repellent, a fungicide, or as a form of scent-marking.[6]

Reproduction

Coati breeding season mainly corresponds with the start of the rainy season to coincide with maximum availability of food, especially fruits: between January and March in some areas, and between October and February in others. During the breeding season, an adult male is accepted into the band of females and juveniles near the beginning of the breeding season, leading to a polygynous mating system.

The pregnant females separate from the group, build a nest on a tree or in a rocky niche and, after a gestation period of about 11 weeks, give birth to litters of three to seven kits. About six weeks after birth, the females and their young will rejoin the band. Females become sexually mature at two years of age, while males will acquire sexual maturity at three years of age.

Natural enemies

Besides humans, the principal predators of coatis are other carnivorans. Enemies include jaguarundis, foxes, dogs, tayras, ocelots and jaguars. However, large raptors, such as Ornate Hawk-Eagles, Black-and-chestnut Eagles and Harpy Eagles, also are known to hunt them.[7] White-faced capuchin monkeys also hunt their pups.[8]

Status

Coatis face unregulated hunting and the serious threat of environmental destruction in Central and South America. The absence of scientifically sound population studies of Nasua or Nasuella in the wild is probably leading to a severe underestimation of the ecological problems and decline in numbers affecting the species.[citation needed]

Successful adaptation to life in human proximity (e.g., similar to raccoons living in metropolitan areas in the U.S.) is very unlikely; the species is thus threatened by habitat destruction.[citation needed]

Coatis in captivity

Coatis are one of five groups of procyonids commonly kept as pets in various parts of North, Central and South America, the others being the raccoons (common and crab-eating), the kinkajou, the ring-tailed cat and cacomistle. However, while both the white-nosed and South America coatis are common in captivity, mountain coatis and the Cozumel Island coati are very rare or absent in captivity.[9][10]

Coatis are small creatures that can be wild, somewhat difficult to control or train in some cases, and generally behave in a manner radically different from that of a pet dog.[11] Optimally, they should have a spacious outdoor enclosure and a coati-proofed room in the house and/or other climate-controlled place, as well. They can be given the run of the house but need careful watching, more careful in some cases than others.

It is possible to litter or toilet train coatis;[12] if one cannot be trained as such, it is still possible to lessen problems in that they tend to designate a latrine area which can have a litter pan placed in it as is done with many ferrets, pet skunks, rabbits, and rodents.[12] Coatis generally need both dog and cat vaccines for distemper and many other diseases and a killed rabies vaccine. They can be spayed or neutered for the same reason as cats and dogs and other pets.

Gallery

References

  1. ^ mundoandino.com
  2. ^ Merriam-Webster; The Shorter Oxford English Dictionary's etymology of the term is that it's Portuguese cuatimundi from Tupi kuatimu?ne, from kua?ti+mu/ne snare, trick.
  3. ^ a b c Helgen, K. M., R. Kays, L. E. Helgen, M. T. N. Tsuchiya-Jerep, C. M. Pinto, K. P. Koepfli, E. Eizirik, and J. E. Maldonado (2009). Taxonomic boundaries and geographic distributions revealed by an integrative systematic overview of the mountain coatis, Nasuella (Carnivora: Procyonidae). Small Carnivore Conservation. 41: 65–74
  4. ^ "Exotic animals 'found wild in UK'". BBC News. 2010-06-21. http://news.bbc.co.uk/1/hi/england/humberside/10365422.stm. 
  5. ^ K.-P. Koepfli, M. E. Gompper, E. Eizirik, C.-C. Ho, L. Linden, J. E. Maldonado, R. K. Wayne (2007). "Phylogeny of the Procyonidae (Mammalia: Carvnivora): Molecules, morphology and the Great American Interchange". Molecular Phylogenetics and Evolution 43 (3): 1076–1095. doi:10.1016/j.ympev.2006.10.003. PMID 17174109. 
  6. ^ Wainwright, M. (2002). The Natural History of Costa Rican Mammals. Miami, FL: Zona Tropical. p. 226. ISBN 0-9705678-1-2. 
  7. ^ List of coatimundi predators
  8. ^ Perry S. Rose L. (1994). Begging and transfer of coati meat by white-faced capuchin monkeys, Cebus capucinus. Primates 35 (4): 409-415
  9. ^ ISIS (2011). Nasua. Version 12 January 2011.
  10. ^ WildlifeExtra (August, 2010). First ever Mountain coati in captivity in Colombia.
  11. ^ http://www.blackpineanimalpark.com/Animals/coati_mundi.htm
  12. ^ a b http://www.ivis.org/journals/exoticdvm/8-6/Coatimundi.pdf

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Look at other dictionaries:

  • coati — coati …   Dictionnaire des rimes

  • Coati — Co*a ti (k[ o]*[aum] t[ e] or k[ o]*[=a] t[i^]), n. [From the native name: cf. F. coati.] (Zo[ o]l.) A mammal of tropical America of the genus {Nasua}, allied to the raccoon, having a ringed tail but with a longer body, tail, and nose; called… …   The Collaborative International Dictionary of English

  • coati — [ kɔati ] n. m. • 1558; mot tupi, par le port. ♦ Zool. Mammifère carnivore (procyonidés) d Amérique du Sud, au corps allongé, au museau terminé en groin. ● coati nom masculin (mot tupi) Carnivore procyonidé arboricole d Amérique du Sud, au museau …   Encyclopédie Universelle

  • coati — COÁTI CO A / s. m. mamifer cu corpul alungit, terminat printr un rât, din America de Sud. (< fr., port. coati) Trimis de raduborza, 15.09.2007. Sursa: MDN …   Dicționar Român

  • Coati — (Säugethier), so v. w. Nasenthier …   Pierer's Universal-Lexikon

  • Coati — Coati, s. Nasenbär …   Meyers Großes Konversations-Lexikon

  • Coati — Coati, Nasenbär, Rüsselbär (Nasŭa Storr.), südamerik. Gattg. der Kleinbären, mit rüsselartig verlängerter Nase. Fleisch und Pelz geschätzt. Zwei Arten: der gesellige C. (N. sociālis Wied. [Abb. 363]), rotbraun, und der einsame C. (N. solitarĭa… …   Kleines Konversations-Lexikon

  • coati — COATI. s. m. Animal quadrupède qui est commun en Amérique, et qui est de la grosseur d un chat …   Dictionnaire de l'Académie Française 1798

  • coati — Brazilian raccoon, 1670s, from Tupi (Brazil), from cua belt, cincture + tim nose …   Etymology dictionary

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