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Overview

Distribution

Range Description

The species is found in mid to southern South America. It occurs from southern Peru through Bolivia south to Uruguay, western Paraguay, and central Chile into Argentina where it is found as far south as Neuquén province (Redford and Eisenberg, 1992). The species has been also observed in in different localities in South Brazil: São Paulo (De Vivo and Gregorin, 2001); at south São Paulo and Paraná (Cáceres, 2004); at eastern Paraná and eastern Santa Catarina (Cimardi, 1996).
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Geographic Range

Conepatus chinga is found in mid to southern South America. Its range includes Chile, Peru, northern Argentina, Bolivia, Paraguay, Uruguay and southern Brazil (Grzimek, 1990). Its range overlaps that of the other closely related Hog-nosed skunk such as Conepatus humboldti and Conepatus semistriatus.

Biogeographic Regions: neotropical (Native )

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Physical Description

Morphology

Physical Description

Conepatus chinga is medium sized, weighing approximately 2.3 to 4.5 kg, and measuring anywhere from 460 to 900 mm long from nose to tail. It has characteristic skunk coloring with generally black fur and 2 white stripes running from the top of the head down the sides of the body to a mostly white tail. It lacks the white stripe down the middle of its face that is common in Mephitis mephitis. Conepatus chinga also has a distintive nose, which is fairly broad and fleshy much like its common name suggests (Walker 1991).

Conepatus chinga also posseses a powerful anal scent gland common to the skunk family that is used defensively as a spray.

Range mass: 2.3 to 4.5 kg.

Range length: 460 to 900 mm.

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Little is known about Conepatus chinga ecology. It seems to forage solitarily during the night in open savannas and in arid and shrubby areas (Cabrera and Yepes, 1960; Mares et al., 1996), capturing arthropods (mainly beetles and arachnids) and occasionally small mammals and preying on eggs and fledling birds (Cabrera and Yepes, 1960; Redford and Eisenberg, 1992; Mares et al. 1996). Hog-nosed skunks are morphologically (Howard and Marsh, 1982) and behaviorally (Donadio et al. 2001) adapted to feeding on ground and underground fauna, particularly invertebrates. During rest periods, it perfers the seclusion offered by shrub forests and rocky slope areas (Donadio et al. 2001).

Systems
  • Terrestrial
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Habitat

Conepatus chinga prefers the open vegetation areas offered by canyons and steppes while foraging or traveling. During rest periods, it perfers the seclusion offered by shrub forests and rocky slope areas (Donadio et all, 2001).

Range elevation: 400 to 4100 m.

Habitat Regions: terrestrial

Terrestrial Biomes: scrub forest

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Trophic Strategy

Food Habits

Conepatus chinga is an omnivore, foraging mainly at night. It uses its fleshy long nose and claws to dig in the soil searching for its favorite food, beetles and spiders. It will also dine on other foods, such as small mammals, eggs, fledgling birds, vegetation or fruit. During the summer, it feeds quite heavily on insects, but in the winter, it will eat a wide variety of other foods because of the lack of insects (Travaini et al., 1998).

Animal Foods: birds; mammals; eggs; insects; terrestrial non-insect arthropods

Plant Foods: leaves; fruit

Primary Diet: omnivore

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Associations

Ecosystem Roles

Conepatus chinga is an uncommon medium sized carnivore in its range. It provides a source of food for animals such as snakes and other larger predators, although due to its defensive spray, predators tend to avoid it. As an omnivore, it eats a wide range of foods (Walker 1991).

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Predation

Conepatus chinga possesses one of the most familiar anti-predator adaptations, using its anal scent glands to spray a foul smelling liquid on potential predators (Walker 1991). Another adaptation is their resistance to pitviper venom. This aids them in protection from the vipers who may be hunting them (Walker 1991).

Known Predators:

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Known predators

Conepatus chinga is prey of:
Strigiformes
Serpentes
Homo sapiens
Falconiformes
Pseudalopex

This list may not be complete but is based on published studies.
  • Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 16, 2011 at http://animaldiversity.org. http://www.animaldiversity.org
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Known prey organisms

Conepatus chinga preys on:
non-insect arthropods
Arthropoda
Insecta
Aves
Mammalia

This list may not be complete but is based on published studies.
  • Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 16, 2011 at http://animaldiversity.org. http://www.animaldiversity.org
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Life History and Behavior

Life Expectancy

Lifespan/Longevity

Much is unknown about the lifespan of Conepatus chinga, but recent studies have shed the light on its duration. It is thought to live approximately 4 to 6 years in the wild. A captive Conepatus leuconotus lived 8 years and 8 months in captivitiy. (Walker 1991)

Average lifespan

Status: wild:
6 years.

Range lifespan

Status: captivity:
8.7 (high) years.

Average lifespan

Status: captivity:
6.6 years.

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Lifespan, longevity, and ageing

Maximum longevity: 10 years (captivity) Observations: One specimen was about 10 years old when it died in captivity (Richard Weigl 2005). Still, maximum longevity could be underestimated in this species.
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Reproduction

Reproduction

Though solitary during the year, males wander in search of mature females in during the breeding season in late February and early March. Very little is known as to the specifics of the mating rituals (Grzimek 1990).

Mating System: polygynandrous (promiscuous)

The breedings season for C. chinga is generally in late February. Solitary for most of the year, mature males seek females for mating during this time. Females generally are impregnated by March and give birth to litters of 2 to 5 in late April or early May. Gestation period is approximately 2 months. The young are sexually mature at 10 to 12 months of age (Walker 1991).

Breeding season: Spring

Range number of offspring: 2 to 5.

Average gestation period: 2 months.

Range age at sexual or reproductive maturity (female): 10 to 12 years.

Range age at sexual or reproductive maturity (male): 10 to 12 years.

Key Reproductive Features: seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); viviparous

Females are the sole caretakers of the young. The young are weaned generally in 8-10 weeks and are foraging on their own by August. Soon after they will leave the mother in search of their own territories (Walker 1991).

Parental Investment: altricial ; female parental care

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2008

Assessor/s
Emmons, L. & Helgen, K.

Reviewer/s
Duckworth, J.W. (Small Carnivore Red List Authority) & Schipper, J. (Global Mammal Assessment Team)

Justification
This species is listed as Least Concern as the species is widespread in a region of relatively intact habitat, and although subject to hunting and habitat loss is not believed to be declining fast enough to warrant listing in a higher category of threat.

History
  • 1996
    Lower Risk/least concern
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Conservation Status

Information concerning the status of C. chinga is lacking, but it is considered uncommon. One subspecies, C. chinga rex, is rare due to hunting for its pelt. More studies are needed to effectively determine the status of this animal (Walker 1991).

US Migratory Bird Act: no special status

US Federal List: no special status

CITES: no special status

IUCN Red List of Threatened Species: least concern

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Population

Population
This species is locally common. Density value reported for Chile is 5 individuals/km2 (Cofré et al., 1999).

Population Trend
Decreasing
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Threats

Threats

Major Threats
Skunks were heavily hunted for their fur in Argentina during the 1970s and early 1980s (Gruss and Waller 1988). Additionally extensive areas of skunk habitat, including the Patagonian steppe, have been severely degraded due to overgrazing and soil erosion by livestock (primarily sheep) and feral, exotic species (Dinerstein et al. 1995; Novaro et al. 2000).
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Management

Conservation Actions

Conservation Actions
Suggested actions needed to revert the decline of native species living in the Patagonian steppe include: prevent new introductions; create protected areas in the Patagonian steppe where livestock are excluded and the ecological role of native large fauna is restored; study other consequences of the introduction of exotic species and the ecological extinction of native ones (Novaro et al., 2000). It is also considered necessary to include species of Conepatus in CITES Appndix II in order to obtain data on the trade in the different species, to estimate the exploitation level, and to enforce a better control of the exports, and to avoid that one of the species exported under the name of any of the other species (IUCN-SSC, 1992).
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Relevance to Humans and Ecosystems

Benefits

Economic Importance for Humans: Negative

The remote location of its range has prevented too much contact with humans in a negative sense, but C. chinga is known to carry diseases such as rabies and Trypanosoma cruzi (Pietrokovsky et al, 1991).

Negative Impacts: causes or carries domestic animal disease

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Economic Importance for Humans: Positive

Conepatus chinga aids local farmers by eating small mammals and insects that may hurt their crops. Additionally, its fur is used in the fur trade (Walker 1991).

Positive Impacts: controls pest population

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Wikipedia

Molina's hog-nosed skunk

Molina's hog-nosed skunk, also called the Andes skunk (Conepatus chinga), is a skunk species from South America. It is found in Argentina, Bolivia, Brazil, Chile, Peru and Uruguay in heights up to 5000m.

References

  1. ^ Emmons, L. & Helgen, K. (2008). Conepatus chinga. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 27 January 2009.
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