South American gray fox

Last updated

South American gray fox [1]
Zorrito Chile.JPG
CITES Appendix II (CITES) [3]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Canidae
Genus: Lycalopex
Species:
L. griseus
Binomial name
Lycalopex griseus
(Gray, 1837)
Pseudalopex griseus range map.png
Distribution of the South American gray fox
Synonyms [4]
  • Dusicyon griseus
  • Pseudalopex griseus (Gray, 1837)

The South American gray fox (Lycalopex griseus), also known as the Patagonian fox, the chilla or zorro gris (gray fox or gray zorro), is a South American species of Lycalopex (the "false" or lesser foxes) in the Canidae family, which includes dogs, wolves, jackals, coyotes and foxes, among other canids. It is endemic to the southern parts of Argentina and Chile, primarily Patagonia and Tierra Del Fuego.

Contents

Description

Couple found near Lonquimay volcano, Araucania Region, Chile Pareja Zorro Chilla, Volcan Lonquimay 08jun14.jpg
Couple found near Lonquimay volcano, Araucanía Region, Chile

The South American gray fox is a small fox-like canid, weighing 2.5 to 5.45 kilograms (5.5 to 12.0 lb), and measuring 65 to 110 centimetres (26 to 43 in) in length including a tail of 20 to 43 cm (8 to 17 in). The head is reddish-brown flecked with white. The ears are large and there is a distinct black spot on the chin. The pelage is brindled, with agouti guard hairs and a short, dense, pale undercoat. The underparts are pale grey. The limbs are tawny and the thighs are crossed by a dark bar. The long, bushy tail has a dark dorsal stripe and dark tip with a paler, mottled underside. [4]

Range and habitat

The South American gray fox is found in Argentina and Chile in the Southern Cone of South America. Its range comprises stripes on both sides of the Andes mountain range between parallels 17ºS (northernmost Chile) and 54ºS (Tierra del Fuego). [2]

In Argentina, this species inhabits the western semiarid region of the country, from the Andean spurs (ca. 69ºW) to meridian 66ºW. South from the Río Grande, the distribution of the fox widens reaching the Atlantic coast. In Chile, it is present throughout the country. Its presence in Peru has been mentioned; to date, however, there has been no confirmation of it. The South American gray fox was introduced to the Falkland Islands in the late 1920s early 1930s and is still present in quite large numbers on Beaver and Weddell Islands plus several smaller islands. [2]

The South American gray fox occurs in a variety of habitats, from the warm, arid scrublands of the Argentine uplands and the cold, arid Patagonian steppe to the forests of southernmost Chile. [2]

Diet

The diet varies in different parts of its range and at different times of year. It consists mainly of mammals, birds, arthropods, bird eggs, reptiles, fruit and carrion. The main prey items seem to be small mammals, especially rodents. Fruits eaten include Cryptocarya alba , Lithraea caustica and Prosopanche spp . [5]

Reproduction

The South American gray fox breeds in early austral autumn, around March. After a gestation period of two months, two to four kits are born in a den. Not much else is recorded about its lifestyle.

Interaction with environment

A chilla in Pan de Azucar National Park in the coast of Atacama Desert. Fox pan de azucar.JPG
A chilla in Pan de Azucar National Park in the coast of Atacama Desert.

Urban

The South American gray fox is a largely solitary animal that has long been hunted for its pelt. The foxes sometimes go near human habitations in search of food, such as chickens and sheep, but tend to avoid areas visited by dogs. They are useful in their role as scavengers of carrion and as dispersers of the seeds of the fruit they eat. [6] [7]

Country

Where their ranges overlap, the South American gray fox is in competition with the larger culpeo fox. The former consumes a greater proportion of rodents, and arthropods make a significant portion of its diet, while the culpeo tends to consume larger prey, including the non-native European hare which has been introduced into Chile. These prey animals are partitioned between these two species, with the gray fox being excluded from the best prey territories by the larger culpeo. [8]

Related Research Articles

<span class="mw-page-title-main">Canidae</span> Family of mammals

Canidae is a biological family of dog-like carnivorans, colloquially referred to as dogs, and constitutes a clade. A member of this family is also called a canid. The family includes three subfamilies: the Caninae, and the extinct Borophaginae and Hesperocyoninae. The Caninae are known as canines, and include domestic dogs, wolves, coyotes, foxes, jackals and other species.

<span class="mw-page-title-main">Fox</span> Genera of mammal

Foxes are small-to-medium-sized omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull; upright, triangular ears; a pointed, slightly upturned snout; and a long, bushy tail ("brush").

<span class="mw-page-title-main">Culpeo</span> Species of carnivore

The culpeo, also known as Culpeo zorro, Andean zorro, Andean fox, Paramo wolf, Andean wolf, and colpeo fox, is a species of South American fox. Despite the name, it is not a true fox, but more closely related to wolves and jackals. Its appearance resembles that of foxes due to convergent evolution.

<i>Dusicyon</i> Extinct genus of carnivores

Dusicyon is an extinct genus of South American canids.

<span class="mw-page-title-main">Bush dog</span> Species of carnivore

The bush dog is a canine found in Central and South America. In spite of its extensive range, it is very rare in most areas except in Suriname, Guyana and Peru; it was first described by Peter Wilhelm Lund from fossils in Brazilian caves and was believed to be extinct.

<span class="mw-page-title-main">South American fox</span> Genus of carnivores

The South American foxes (Lycalopex), commonly called raposa in Portuguese, or zorro in Spanish, are a genus from South America of the subfamily Caninae. Despite their name, they are not true foxes, but are a unique canid genus more closely related to wolves and jackals than to true foxes; some of them resemble foxes due to convergent evolution. The South American gray fox, Lycalopex griseus, is the most common species, and is known for its large ears and a highly marketable, russet-fringed pelt.

<span class="mw-page-title-main">Crab-eating fox</span> Species of carnivore

The crab-eating fox, also known as the forest fox, wood fox, bushdog or maikong, is an extant species of medium-sized canid endemic to the central part of South America since at least the Pleistocene epoch. Like South American foxes, which are in the genus Lycalopex, it is not closely related to true foxes. Cerdocyon comes from the Greek words kerdo and kyon (dog) referring to the dog- and fox-like characteristics of this animal.

<span class="mw-page-title-main">Darwin's fox</span> Species of canid

Darwin's fox or Darwin's zorro is an endangered canid from the genus Lycalopex. It is also known as the zorro chilote or zorro de Darwin in Spanish and lives on Nahuelbuta National Park, the Cordillera de Oncol, Cordillera Pelada in mainland Chile and Chiloé Island. This small, dark canine weighs 1.8 to 3.95 kg, has a head-and-body length of 48 to 59 cm and a tail that is 17.5 to 25.5 cm. Darwin's fox displays no key differences between male and female other than the fact that the male has a broader muzzle. Males display no territorial behavior and are not aggressive towards other males roaming around their territory.

<span class="mw-page-title-main">Sechuran fox</span> Species of carnivore

The Sechuran fox, also called the Peruvian desert fox or the Sechuran zorro, is a small South American species of canid closely related to other South American "false" foxes or zorro. It gets its name for being found in the Sechura Desert in northwestern Peru.

<span class="mw-page-title-main">Pampas fox</span> Species of carnivore

The Pampas fox, also known as grey pampean fox, Pampas zorro, Azara's fox, or Azara's zorro, is a medium-sized zorro, or "false" fox, native to the South American Pampas. Azara in some of its alternative common names is a reference to Spanish naturalist Félix de Azara.

<span class="mw-page-title-main">Hoary fox</span> Species of carnivore

The hoary fox or hoary zorro, also known as raposinha-do-campo in Brazil, is a species of zorro or "false" fox endemic to Brazil. Unlike many other foxes, it feeds primarily on small invertebrates such as insects.

<span class="mw-page-title-main">Pale fox</span> Species of carnivore

The pale fox is a species of fox found in the band of African Sahel from Senegal in the west to Sudan in the east. It is one of the least studied of all canid species, in part due to its remote habitat and its sandy coat that blends in well with the desert-like terrain. The pale fox is distinguished by its light-colored fur and oversized ears, which enable it to excel in camouflage and survival in harsh environments.

<span class="mw-page-title-main">Alberto de Agostini National Park</span>

Alberto de Agostini National Park is a protected area that was created on January 22, 1965, on land that was formerly part of the "Hollanda" forest reserve and "Hernando de Magallanes National Park". It covers 1,460,000 hectares and includes the Cordillera Darwin mountain range, which is the final land-based stretch of the Andes before it becomes a chain of mountains appearing as small islands that sink into the Pacific Ocean and the Beagle Channel.

<span class="mw-page-title-main">Reserva Provincial La Payunia</span>

The Reserva Provincial La Payunia also known as Payún or Payén is a natural reserve located in the Malargüe Department in the southern part of Mendoza Province, Argentina, about 160 km away from Malargüe city. It was declared as nature preserve in 1988 and has an area of 4,500 km2. La Payunia is home to the many volcanic cones, being noteworthy the Payún Matrú volcano.

<span class="mw-page-title-main">Humboldt's hog-nosed skunk</span> Species of carnivore

Humboldt's hog-nosed skunk, also known as the Patagonian hog-nosed skunk, is a species of hog-nosed skunk indigenous to the open grassy areas in the Patagonian regions of South Argentina and Chile. It belongs to the order Carnivora and the family Mephitidae.

<i>Dusicyon avus</i> Extinct species of carnivore

Dusicyon avus is an extinct species of cerdocyonine canid in the genus Dusicyon, native to South America during the Pleistocene and Holocene epochs. It was medium to large, about the size of a German shepherd. It was closely related to the Falkland Islands wolf or warrah (Dusicyon australis), which descended from a population of D. avus. It appears to have survived until very recently, perhaps 400 years ago.

<span class="mw-page-title-main">Fuegian dog</span> Extinct domesticated canid

The Fuegian dog, or Yahgan dog, or Patagonian dog, is an extinct type of canid. In comparison to the domestic dog's ancient wolf ancestry, the Fuegian dog was traditionally thought to be bred and domesticated from the South American culpeo, also known as the culpeo fox. However, 2023 research suggested that the traditional accounts of the Fuegian dog were in fact two different animals. The culpeo itself is similar to true foxes, though it is closer, genetically, to wolves, coyotes and jackals ; thus it is placed in a separate genus within the South American foxes or zorros.

<span class="mw-page-title-main">Patagonian grasslands</span> Ecoregion in the south of Argentina

The Patagonian grasslands (NT0804) is an ecoregion in the south of Argentina and Chile. The grasslands are home to diverse fauna, including several rare or endemic species of birds. There are few protected areas. The grasslands are threatened by overgrazing by sheep, which supply high-quality merino wool. Efforts are being made to develop sustainable grazing practices to avoid desertification.

<span class="mw-page-title-main">South American dogs</span>

The domestic dog was introduced to South America between 5,500 and 2,500 BCE from North America. They occupied the Andes region and spread into the Amazonian Basin relatively recently, in the 20th century. Today, very few of the original South American dogs remain, mostly replaced with introduced breeds from Eurasia.

References

  1. Wozencraft, W. C. (2005). "Order Carnivora". In Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. ISBN   978-0-8018-8221-0. OCLC   62265494.
  2. 1 2 3 4 Lucherini, M. (2017) [errata version of 2016 assessment]. "Lycalopex griseus". IUCN Red List of Threatened Species . 2016: e.T6927A111975602. doi: 10.2305/IUCN.UK.2016-1.RLTS.T6927A86440397.en . Retrieved 15 November 2023.
  3. "Appendices | CITES". cites.org. Retrieved 14 January 2022.
  4. 1 2 "Lycalopex griseus (mammal)". Global Invasive Species Database. Invasive Species Specialist Group. 10 August 2010. Archived from the original on 28 January 2015. Retrieved 25 January 2015.
  5. Claudio Sillero-Zubiri; Michael Hoffmann; David Whyte Macdonald (2004). "South American gray fox" (PDF). Canids: Foxes, Wolves, Jackals and Dogs: Status Survey and Conservation Action Plan. IUCN. pp. 56–63. Retrieved 24 January 2015.
  6. Peterson, L. (2011). "Lycalopex griseus: Culpeo". Animal Diversity Web. University of Michigan. Retrieved 8 April 2015.
  7. SILVA-RODRÍGUEZ, EDUARDO A.; ORTEGA-SOLÍS, GABRIEL R.; JIMÉNEZ, JAIME E. (2010). "Conservation and ecological implications of the use of space by chilla foxes and free-ranging dogs in a human-dominated landscape in southern Chile". Austral Ecology. 35 (7): 765–777. doi:10.1111/j.1442-9993.2009.02083.x.
  8. Sonia C. Zapata; Alejandro Travaini; Miguel Delibes; Rolando Martínez-Peck (2005). "Food habits and resource partitioning between grey and culpeo foxes in southeastern Argentine Patagonia". Studies on Neotropical Fauna and Environment. 40 (2): 97–103. doi:10.1080/01650520500129836. hdl: 10261/50241 . S2CID   85789638.