Striped polecat

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Striped polecat [1]
Ictonyx striatus - Museo Civico di Storia Naturale Giacomo Doria - Genoa, Italy - DSC02633.JPG
Taxidermied specimen in the Museo Civico di Storia Naturale Giacomo Doria, Genoa
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Mustelidae
Genus: Ictonyx
Species:
I. striatus
Binomial name
Ictonyx striatus
(Perry, 1810)
Subspecies [1]

(many)

Striped Polecat area.png
Striped polecat range

The striped polecat (Ictonyx striatus), also called the African polecat, zoril, zorille, zorilla, Cape polecat, and African skunk, is a member of the family Mustelidae that resembles a skunk (of the family Mephitidae). [3] The name "zorilla" comes from the Spanish word "zorillo", meaning "skunk", itself a diminutive form of the Spanish "zorro," "fox." It lives predominantly in dry and arid climates, such as the savannahs and open country of Central, Southern, and sub-Saharan Africa, excluding the Congo Basin and the more coastal areas of West Africa. [2] [4]

Contents

Physical characteristics

Striped polecats are about 60–70 cm (24–28 in) in length, including their tails, and 10–15 cm (3.9–5.9 in) tall to the shoulders on average. They weigh from 0.6 to 1.3 kg (1.3 to 2.9 lb), generally, with the males being the larger of the two sexes. [4] Their specific coloring varies by location. Generally they are black on the underside, white on the tail, with stripes running from their heads down their backs and on their cheeks. The legs and feet are black. Their skulls are usually around 56 mm (2.2 in) long, and they have unique face-mask coloring, often including a white spot on their heads, and white ears. [5] [6] These masks are thought to serve as warnings to potential predators or other antagonists. [7]

African skunk fur-skin (striped polecat (Ictonyx striatus), also called the African polecat, zoril, zorille, zorilla, Cape polecat).jpg

Diet

Like other mustelids, the striped polecat is a carnivore. It has 34 sharp teeth which are optimal for shearing flesh and grinding meat. Its diet includes various small rodents, snakes, birds, amphibians, and insects. [8] Due to their small stomachs, they must eat often, and have clawed paws that help them dig around in the dirt in pursuit of their next meal. [3] [9]

Lifestyle and reproduction

The striped polecat is a solitary creature, often only associating with other members of its species in small family groups or for the purpose of breeding. It is nocturnal, hunting mostly at night. [3] During the day, it burrows into the brush or sleeps in the burrows of other animals. [10] Most often, striped polecats are found in habitats with large ungulate populations, because of the lower level of shrubs where these grazers occur. [2] [4] [11]

After conception, the gestation period for a striped polecat is about 4 weeks. During this time, the mother prepares a nest for her offspring. The newborn polecats are completely vulnerable; they are born blind, deaf, and naked. [12] Around one to five offspring are born per litter in the summer. Up to six can be supported at one time, if food is available, because the mother has six teats. [13] The mother protects her young until they are able to survive on their own. [10]

Defense mechanisms

The striped polecat is an aggressive and very territorial animal. It marks its territory with its feces and through an anal spray. [14] The spray serves as a defense against predators, in a similar manner to skunks. The spray, released by anal stink glands, temporarily blinds their adversaries and irritates the mucous membranes, resulting in an intense burning sensation. [15] Before spraying the opponent with this noxious fluid, the striped polecat often takes a deimatic (threat) stance with its back arched, rear end facing the opponent, and tail straight up in the air. [10]

Communication

Striped polecats have been known to communicate with each other using myriad verbal signals and calls. Growls act as a warning to possible predators, competitors, or other enemies to back off. High-pitched screams have been observed as signifying situations of high aggression or accompanying the spraying of anal emissions. An undulating high- to low-pitched scream has been used to convey surrender or submission to an adversary. This call has been noted to accompany the subsequent release of the loser. Conversely, a quieter undulating call has been interpreted as functioning as a friendly salutation. Mating calls are common forms of communication between the sexes. Young polecats often have a specific set of calls and signals, used in adolescence, either signifying distress or joy depending on if the mother is absent or present. [16] [17]

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References

  1. 1 2 Wozencraft, W. C. (2005). "Ictonyx striatus". In Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 532–628. ISBN   978-0-8018-8221-0. OCLC   62265494.
  2. 1 2 3 Stuart, C.; Stuart, M.; Do Linh San, E. (2015). "Ictonyx striatus". IUCN Red List of Threatened Species . 2015: e.T41646A45212491. doi: 10.2305/IUCN.UK.2015-4.RLTS.T41646A45212491.en . Retrieved 11 November 2021.
  3. 1 2 3 Walker, Clive (1996). Signs of the Wild. Cape Town: Struik Publishers. p. 56.
  4. 1 2 3 Estes, Richard (1991). The Behavior Guide to African Mammals: Including Hoofed Mammals, Carnivores, Primates. Berkeley and Los Angeles: University of California Press. p. 429. ISBN   9780520272972.
  5. ↑ Skinner & Chimimba (2005). The Mammals of the Southern African Subregion. Cambridge: Cambridge University Press. p. 504. ISBN   9780521844185.
  6. ↑ Hoath, Richard (2009). A Field Guide to the Mammals of Egypt. Egypt: The American University in Cairo Press. p. 84. ISBN   9789774162541.
  7. ↑ Newman; Buesching & Wolff (2005). The function of facial masks in midguild carnivores (PDF). Oxford: Wildlife Conservation Research Unit, Dept of Zoology. p. 632.
  8. ↑ Estes, Richard (1991). The Behavior Guide to African Mammals: Including Hoofed Mammals, Carnivores, Primates . Berkeley and Los Angeles: University of California Press. pp.  422&429.
  9. ↑ Skinner & Chimimba (2005). The Mammals of the Southern African Subregion. Cambridge: Cambridge University Press. p. 504.
  10. 1 2 3 Stuart & Stuart (2001). Field Guide to Mammals of Southern Africa. Cape Town: Struik Publishing. p. 132.
  11. ↑ Blaum; Acta Oecologica; et al. (22 December 2007). "Shrub encroachment affects mammalian carnivore abundance and species richness in semiarid rangelands". Acta Oecologica. 31 (1): 86–92. Bibcode:2007AcO....31...86B. doi:10.1016/j.actao.2006.10.004.
  12. ↑ Estes, Richard (1991). The Behavior Guide to African Mammals: Including Hoofed Mammals, Carnivores, Primates . Berkeley and Los Angeles: University of California Press. pp.  424.
  13. ↑ Hoath, Richard (2009). A Field Guide to the Mammals of Egypt. Egypt: The American University in Cairo Press. p. 85. ISBN   9789774162541.
  14. ↑ Estes, Richard (1991). The Behavior Guide to African Mammals: Including Hoofed Mammals, Carnivores, Primates . Berkeley and Los Angeles: University of California Press. pp.  422.
  15. ↑ Estes, Richard (1991). The Behavior Guide to African Mammals: Including Hoofed Mammals, Carnivores, Primates . Berkeley and Los Angeles: University of California Press. pp.  419.
  16. ↑ Estes, Richard (1991). The Behavior Guide to African Mammals: Including Hoofed Mammals, Carnivores, Primates . Berkeley and Los Angeles: University of California Press. pp.  431.
  17. ↑ Channing & Rowe-Rowe (1 January 1977). "Vocalizations of South African Mustelines". Zeitschrift für Tierpsychologie. 44 (3): 283–293. doi:10.1111/j.1439-0310.1977.tb00996.x. PMID   930442.
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