Nasua nasua 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Carnivora Procyonidae

Scientific Name: Nasua nasua (Linnaeus, 1766)
Common Name(s):
English South American Coati
Spanish Achuni, Coatí, Tejón
Viverra nasua Linnaeus, 1766

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2015-03-01
Assessor(s): Emmons, L. & Helgen, K.
Reviewer(s): Duckworth, J.W.
This species is listed as Least Concern because it is widespread and apparently common in an area of largely intact habitat, population density varies greatly from region to region and there are no major threats (although the species is probably declining locally through hunting and habitat loss).
Previously published Red List assessments:

Geographic Range [top]

Range Description:Nasua nasua is broadly distributed in South America, ranging from Colombia and Venezuela in the north to Uruguay and northern Argentina in the south (Gompper and Decker 1998). The species is absent from the Llano grasslands of Venezuela (Eisenberg 1989). It has been introduced to Robinson Crusoe, one of the Juan Fernández Islands of Chile (Miller and Rottmann 1976, Pine et al. 1979, Colwell 1989).
Countries occurrence:
Argentina; Bolivia, Plurinational States of; Brazil; Colombia; Ecuador; French Guiana; Guyana; Paraguay; Peru; Suriname; Uruguay; Venezuela, Bolivarian Republic of
Additional data:
Upper elevation limit (metres):2500
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population density of Nasua nasua varies greatly from region to region. Densities reported range from 6.2 individuals/km² in a region of low-lying deciduous forest, to 13 individuals/km² in taller gallery forests (Gompper and Decker 1998).
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:The species is an occupant of forested habitat. It has been reported from multistratal deciduous and evergreen rainforest, riverine gallery forest, xeric chaco, cerrado and dry scrub forest (Handley 1976, Mondolfi 1976, Schaller 1983, Emmons and Feer 1990, Brooks 1993). It is found over a wide altitudinal range, with Andean individuals found at elevations up to 2,500 m (Lönnberg 1921). Nasua nasua is omnivorous, eating predominantly invertebrates and fruit (Gompper and Decker 1998). The consumption of vertebrates has been noted, but is never common (Kaufmann, 1962, Russell 1982, Schaller 1983, Bisbal 1986, Gompper 1996, Beisiegel 2001). It is essentially diurnal. Adult males are solitary, while females and immature males travel in groups up to 30 individuals (Crespo 1982, Schaller 1983, Emmons and Feer 1990).
Generation Length (years):7.6

Use and Trade [top]

Use and Trade: This species is hunted for its meat and fur.

Threats [top]

Major Threat(s): Habitat loss through deforestation and hunting for their meat by local people are potential threats to the species.

Conservation Actions [top]

Conservation Actions: This species is protected under CITES Appendix III as N. n. solitaria in Uruguay. It occurs in numerous protected areas.

Classifications [top]

1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability:Suitable  major importance:Yes
1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability:Suitable  major importance:Yes
3. Shrubland -> 3.5. Shrubland - Subtropical/Tropical Dry
suitability:Suitable  major importance:Yes

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
  Included in international legislation:Yes
  Subject to any international management/trade controls:Yes
2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.3. Agro-industry farming
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> 2.3.3. Agro-industry grazing, ranching or farming
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

5. Biological resource use -> 5.1. Hunting & trapping terrestrial animals -> 5.1.1. Intentional use (species is the target)
♦ timing:Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality

5. Biological resource use -> 5.3. Logging & wood harvesting -> 5.3.5. Motivation Unknown/Unrecorded
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.3. Life history & ecology
3. Monitoring -> 3.1. Population trends

Bibliography [top]

Beisiegel, B. M. 2001. Notes on the Coati, Nasua nasua (Carnivora: Procyonidae) in an Atlantic forest area. Brazilian Journal of Biology - Revista brasleira de biologia 61: 689-692.

Bisbal, F.J. 1986. Food habits of some neotropical carnivores in Venezuela (Mammalia, Carnivora). Mammalia 50(3): 329-339.

Brooks, D.M. 1993. Observations on procyonids in Paraguay and adjacent regions. Small Carnivore Conservation 8: 3-4.

Colwell, R. K. 1989. Hummingbirds of the Juan Fernandez Islands: natural history, evolution and population status. Ibis 131: 548-566.

Crespo, J.A. 1982. Ecologia de la comunidad de mamiferos del Parque Nacional Iguazu, Misiones. Revista del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" 3: 1-162.

Eisenberg, J.F. 1989. Mammals of the Neotropics. The Northern Neotropics. The University of Chicago Press, Chicago, USA and London, UK.

Emmons, L.H. and Feer, F. 1990. Neotropical Rainforest Mammals: a Field Guide. University of Chicago Press, Chicago, USA and London, UK.

Gompper, M. and Decker, D. 1998. Nasua nasua. Mammalian species 580: 1-9.

Gompper, M.E. 1996. Sociality and asociality in White-nosed Coatis (Nasua narica): Foraging costs and benefits. Behavioral Ecology 7: 254-263.

Handley Jr., C.O. 1976. Mammals of the Smithsonian Venezuelan Project. Brigham Young University Science Bulletin, Biological Series 20: 1-91.

IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-1. Available at: (Accessed: 30 June 2016).

Kaufmann, J.H. 1962. Ecology and social behaviour of the Coati, Nasua narica, on Barro Colorado Island, Panama. University of California Publications in Zoology 60: 95–222.

Lönnberg, E. 1921. A second contribution to the mammalogy of Ecuador with some remarks on Caenolestes. Arkiv för Zoologi 14(4): 1-104.

Miller, S. and Rottmann, J. 1976. Guia para el reconocimiento de mamiferos chilenos. Editora Nacional Gabriela Mistral, Santiago.

Mondolfi, E. 1976. Fauna silvestre de los bosques humedos tropicales de Venezuela. In: L. S. Hamilton, J. Steyermark, J. P. Veillon and E. Mondolfi (eds), Conservacion de los bosques humedos de Venezuela. Second edition, pp. 181 pp.. Sierra Club, Consejo de Bienestar Rural, Caracas.

Pacifici, M., Santini, L., Di Marco, M., Baisero, D., Francucci, L., Grottolo Marasini, G., Visconti, P. and Rondinini, C. 2013. Generation length for mammals. Nature Conservation 5: 87–94.

Pine, R.H., Miller, S.D. and Schamberger, M.L. 1979. Contributions to the mammalogy of Chile. Mammalia 43: 339-376.

Russell, J.K. 1982. Timing of reproduction by Coatis (Nasua narica) in relation to fluctuations in food resources. In: E.G. Leigh, Jr., A.S. Rand and D.M. Windsor (eds), The ecology of a tropical forest: seasonal rhythms and long-term changes, pp. 413–431. Smithsonian Institution Press, Washington, DC, USA.

Schaller, G. B. 1983. Mammals and their biomass on a Brazilian ranch. Arquivos Zoologia 31(1): 1-36.

Citation: Emmons, L. & Helgen, K. 2016. Nasua nasua. In: . The IUCN Red List of Threatened Species 2016: e.T41684A45216227. . Downloaded on 20 June 2018.
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