Hoary fox

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Hoary fox [1]
Lycalopex vetulus in Bacury Lodge, Anhembi 1.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Canidae
Genus: Lycalopex
Species:
L. vetulus
Binomial name
Lycalopex vetulus
(Lund, 1842)
Hoary Fox area.png
Hoary fox range
Synonyms

Pseudoalopex vetulus
Dusicyon vetulus

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

Description

The hoary fox has a short muzzle, small teeth, a short coat, and slender limbs. The upper part of the body is grey, and the underside of the body is cream or fawn. The tail is black on the tip with a marked dark stripe along the upper surface, which in male animals may extend all the way along the back to the nape of the neck. The ears and outside part of the legs are reddish or tawny, and the lower jaw is black. Some melanistic individuals have also been reported. [3] [4]

It is small for a fox, weighing only 3 to 4 kg (6.6 to 8.8 lb), with a head and body length of 58 to 72 cm (23 to 28 in), and a tail 25 to 36 cm (9.8 to 14.2 in). Together with its slender form, the small size of the hoary fox makes it an agile and fast-running animal, while its relatively weak teeth adapt it to feeding on invertebrates, rather than larger prey. [4]

Behaviour and diet

Hoary foxes are nocturnal, [5] and largely solitary outside of the breeding season. They mainly eat insects, especially termites, dung beetles, and grasshoppers, [6] but also may eat rodents, small birds, and fruit. Individuals have widely varying home ranges, depending on the local environment and reported examples are as follows: 385 ha (950 acres) for 1 adult female in southern Bahia, 456 ha (1,130 acres) for a group consisting of an adult breeding pair and 5 juvenile offspring in a pasture of Minas Gerais, and 48 ha (120 acres) for 2 breeding pairs out of 3 study groups from pastures in eastern Mato Grosso. [4]

Range

The hoary fox is native to south-central Brazil, although some sightings have been recorded from the north of the country, and Pleistocene fossils are known from Argentina. Although they may be found in more marginal habitats, they usually live in the cerrado, between 90 and 1,100 m (300 and 3,610 ft) elevation, where open woodlands, bushlands, and savannahs that are smooth or scattered with trees occur. [4]

No subspecies are recognized.

Reproduction

Females usually give birth to two to four pups in August to September, after a gestation period around 50 days. [4] The sex ratio of the pups is equal between males and females. [5] The female prepares a den in which to give birth, sometimes using the burrows of other animals. Weaning occurs around 4 months of age. [4] Both parent participate in rearing of the pups. [5]

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, 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">Fennec fox</span> Species of fox

The fennec fox is a small crepuscular fox native to the deserts of North Africa, ranging from Western Sahara and Mauritania to the Sinai Peninsula. Its most distinctive feature is its unusually large ears, which serve to dissipate heat and listen for underground prey. The fennec is the smallest fox species. Its coat, ears, and kidney functions have adapted to the desert environment with high temperatures and little water. It mainly eats insects, small mammals and birds. The fennec has a life span of up to 14 years in captivity and about 10 years in the wild. Its main predators are the Verreaux's eagle-owl, jackals and other large mammals. Fennec families dig out burrows in the sand for habitation and protection, which can be as large as 120 m2 (1,300 sq ft) and adjoin the burrows of other families. Precise population figures are not known but are estimated from the frequency of sightings; these indicate that the fennec is currently not threatened by extinction. Knowledge of social interactions is limited to information gathered from captive animals. The fennec's fur is prized by the indigenous peoples of North Africa, and it is considered an exotic pet in some parts of the world.

<span class="mw-page-title-main">Coati</span> Variety of mammal

Coatis, also known as coatimundis, are members of the family Procyonidae in the genera Nasua and Nasuella. They are diurnal mammals native to South America, Central America, Mexico, and the Southwestern United States. The name "coatimundi" comes from the Tupian languages of Brazil, where it means "lone coati". Locally in Belize, the coati is known as "quash".

<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.

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

The maned wolf is a large canine of South America. It is found in Argentina, Brazil, Bolivia, Peru, and Paraguay, and is almost extinct in Uruguay. Its markings resemble those of foxes, but it is neither a fox nor a wolf. It is the only species in the genus Chrysocyon.

<span class="mw-page-title-main">Quoll</span> Genus of marsupial mammals

Quolls are carnivorous marsupials native to Australia and New Guinea. They are primarily nocturnal and spend most of the day in a den. Of the six species of quoll, four are found in Australia and two in New Guinea. Another two species are known from fossil remains in Pliocene and Pleistocene deposits in Queensland. Genetic evidence indicates that quolls evolved around 15 million years ago in the Miocene, and that the ancestors of the six species had all diverged by around four million years ago. The six species vary in weight and size, from 300 g (11 oz) to 7 kg (15 lb). They have brown or black fur and pink noses. They are largely solitary, but come together for a few social interactions such as mating which occurs during the winter season. A female gives birth to up to 30 pups, but the number that can be raised to adulthood is limited by the number of teats (6–7). They have a life span of 1–5 years.

<span class="mw-page-title-main">Swift fox</span> Species of mammal

The swift fox is a small light orange-tan fox around the size of a domestic cat found in the western grasslands of North America, such as Montana, Colorado, New Mexico, Kansas, Oklahoma and Texas. It also lives in southern Manitoba, Saskatchewan and Alberta in Canada, where it was previously extirpated. It is closely related to the kit fox and some mammalogists classify them as conspecific. However, molecular systematics imply that the two species are distinct. Interbreeding between the two species does occur where their ranges overlap, but this hybridization is quite restricted in scope.

<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">South American gray fox</span> Species of carnivore

The South American gray fox, also known as the Patagonian fox, the chilla or the gray zorro, is a species of Lycalopex, the "false" foxes. It is endemic to the southern part of South America.

<span class="mw-page-title-main">Ring-tailed vontsira</span> Species of carnivore

The ring-tailed vontsira, locally still known as the ring-tailed mongoose, is a euplerid in the subfamily Galidiinae, a carnivoran native to Madagascar. It is the only species in the genus Galidia.

<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">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.

Serra Geral do Tocantins Ecological Station is an ecological station in the states of Bahia and Tocantins, Brazil. It is one of the largest such units in the country, and protects a sparsely populated area of the cerrado biome. The main threat comes from frequent fires set by the local people in order to create cattle pasturage.

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. Lemos, F.G.; Azevedo, F.C.; Paula, R.C.; Dalponte, J.C. (2020). "Lycalopex vetulus". IUCN Red List of Threatened Species . 2020: e.T6926A87695615. doi: 10.2305/IUCN.UK.2020-2.RLTS.T6926A87695615.en . Retrieved 19 November 2021.
  3. "Lycalopex vetulus". University of Michigan Museum of Zoology. Animal Diversity Web. Retrieved 30 October 2010.
  4. 1 2 3 4 5 6 Dalponte, J.C. (2009). "Lycalopex vetulus (Carnivora: Canidae)". Mammalian Species. 847: 1–7. doi: 10.1644/847.1 .
  5. 1 2 3 Courtenay, O.; et al. (2006). "First observations on South America's largely insectivorous canid: the hoary fox (Pseudalopex vetulus)". Journal of Zoology. 268 (1): 45–54. doi:10.1111/j.1469-7998.2005.00021.x.
  6. "Lycalopex vetulus (Hoary fox)". Animal Diversity Web .