Blanford's fox

Blanford's fox (Vulpes cana) is a small fox native to the Middle East and Central Asia. It is listed as Least Concern on the IUCN Red List.[1]

Blanford's fox
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Canidae
Genus: Vulpes
Species:
V. cana[2]
Binomial name
Vulpes cana[2]
(Blanford, 1877)
Range of Blanford's fox
Synonyms
  • Vulpes nigricans Shitkow, 1907[2]

Naming

Blanford's fox is named after the English naturalist William Thomas Blanford, who described it in 1877. It is also known as the Afghan fox, royal fox, dog fox, hoary fox, steppe fox, black fox, king fox (Persian: شاه‌روباه‎, romanized: shāhrūbāh), cliff fox or Baluchistan fox.[3]

The specific name, cana, is Latin for "hoary" (so the scientific name means "hoary fox", corresponding to one of the vernacular names of the species).[4]

Distribution and habitat

The Blanford's fox has a rather discontinuous range. Initially known only from southwest Asia, this species was reported in Israel in 1981 and was later found to be more widespread in the Arabian Peninsula.[5] Peters and Rödel (1994) reviewed the available distribution records of this species and presented, for the eastern part of the range, what they considered to be definitive records from around the Iranian Plateau in Iran, Turkmenistan and Pakistan, with more doubtful records (usually based on skins collected from fur bazaars or otherwise indirectly) from Afghanistan and Tajikistan (though there is no such record).[6][1]

There are now confirmed records in the Middle East from Jordan, the Sinai Peninsula (Egypt), Oman, Saudi Arabia and the United Arab Emirates.[7] They have long been suspected of occurring in Yemen and have been reported at an altitude of about 1,200 m above sea level in Hawf Forest, Al Mahra Governorate, in the far east of Yemen, near the border with Oman. It also seemed possible that they may have lived in western Yemen, where the mountains in southwestern Arabia were contiguous, and the camera trapping record in February 2014 in Wadi Sharis in Hajjah Governorate, NW of Sana'a, now confirms their existence.[8] There is a single record from Egypt, west of the Suez Canal, of an animal captured in 1988, originally believed to be Vulpes rueppellii. There are no verified documents from Syria, but they may have existed.[1]

It was also reported in the mountains of Ras Al Khaimah[9] and Jebel Hafeet[10][11] in the UAE, and in Saudi Arabia.[12]

Description
Fur skin

Blanford's fox is a small fox with wide ears and a long, bushy tail nearly equal to the length of its body.[13] Its body size often varies geographically. In the Afghan-Iranian region, the collected specimens had head-body lengths of 38.5 to 80 cm (15.2 to 31.5 in) and tail lengths of 33 to 41 cm (13 to 16 in), while specimens in Oman had a total length of 73.5 to 76 cm (28.9 to 29.9 in) and a tail length of 35 to 36 cm (14 to 14 in). Weights of those specimens averaged 873g, body lengths 42 cm, tail 32.5 cm.[14] Among all extant canids, only the fennec fox is smaller than Blanford's.[15]

The body is brownish-grey, fading to light yellow on the belly. The winter coat is soft and woolly, with a dense black undercoat and white fur speckles in the dorsal area; together with a somewhat thicker layer of fat, it serves as thermal insulation in cold and dry winter.[13] The summer coat is less thick, the fur is paler, and the white hair is less noticeable. A characteristic mid-dorsal black band extends caudally from the nape of the spine, becoming a mid-dorsal crest along the length of the tail. The tail is the same colour as the body. A black spot is found at the base of the spine. The tip of the tail is normally black, but it is white in some individuals.[16] The dark mid-dorsal line, which is a distinctive characteristic of the Israeli specimens, is less noticeable in Oman specimens, although the black tail markings are similarly developed.[13][17]

Like other arid land foxes, Blanford's fox characteristically large ear is an adaptation to enhance heat dissipation.[18] However, unlike other desert foxes, it does not have pads covered with hair,[16] and it has cat-like, curved, sharp claws described by some authors as semiretractile.[17]

This fox has an ability to climb rocks and make jumps described as "astonishing", jumping to ledges 3 m (9.8 ft) above them with ease, and as part of their regular movements and climbing vertical, crumbling cliffs by a series of jumps up vertical sections.[16][14] The foxes use their sharp, curved claws and naked footpads for traction on narrow ledges and their long, bushy tails as a counterbalance.[16]

Behaviour and ecology

The Blanford's fox is strictly nocturnal, an activity pattern that is most definitely an anti-predator response to diurnal raptors. There are no significant seasonal or gender variations in the activity patterns, and climate conditions at night in the desert of Israel seemed to have little direct effect on their activity, except under extreme conditions.[19]

Diet

Blanford's fox is omnivorous and primarily insectivorous and frugivorous. In Israel, plant food consists mainly of the fruit of two caperbush species, Capparis cartilaginea and Capparis spinosa; they also consume fruits and plant material of date palm (Phoenix dactylifera), Ochradenus baccatus, Fagonia mollis, and various species of Gramineae.[13] Blanford’s foxes in Pakistan are largely frugivorous, feeding on Russian olives (Elaeagnus hortensis), melons, and grapes.[17][20] The Biblical foxes in the vineyard mentioned in the Song of Songs 2:15, described as "little foxes who ruin the vineyards" are most probably the frugivorous Blanford's foxes.

Blanford’s foxes are almost always solitary foragers, only foraging in pairs on occasion. Unlike other fox species, it seldom caches food.[21][18]

Reproduction

Blanford's foxes are thought to be strictly monogamous. Monogamy may be beneficial in this species as the dispersion of their prey is such that, in order to accommodate additional adults, it would demand a territorial expansion that would bring more costs than benefits.[16] Females are monoestrus and come into heat during January–February. Gestation period is around 50–60 days, and litter size is one to three. The lactation period is 30–45 days. Neonates are born with soft, black fur, with an estimated body mass of 29 g. At the age of two months, the kits start to forage with one of the parents, and at 3 months of age they begin to forage on their own. Juveniles have similar markings as adults, but their fur is darker and more grayish. Sexual maturity is reached at the age of 10–12 months.[13][17]

Average lifespan of Blandford's foxes is 4 to 5 years, and does not exceed 10 years in the wild.[22]

Conservation

While the IUCN has downgraded Blanford's fox to "least concern" as more has been learned about the breadth of its distribution across the Middle East, very little is known about this species and its vulnerabilities to the diseases of domesticated dogs that have so badly affected other canids. Currently, little competition exists with humans for habitat, and the fox is a protected species in Israel and protected from hunting in Oman and Yemen. Some fur hunting occurs in Afghanistan, and occasionally they may take poison intended for hyenas and other species.[1]

See also

References
  1. Hoffmann, M. & Sillero-Zubiri, C. (2015). "Vulpes cana". IUCN Red List of Threatened Species. 2015: e.T23050A48075169.
  2. 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. pp. 532–628. ISBN 978-0-8018-8221-0. OCLC 62265494.
  3. "Blanford's fox". Breeding Centre for Endangered Arabian Wildlife. 29 August 2007. Archived from the original on 4 March 2009. Retrieved 31 August 2010.
  4. "canus - Wiktionary".
  5. Ilany, G. (1983). "Blanford's fox, Vulpes cana, Blanford 1877, a new species to Israel". Israel Journal of Zoology. 32: 150.
  6. Peters, G.; Rödel, R. (1994). "Blanford's fox in Africa". Bonner Zoologische Beiträge. 45: 99–111.
  7. Mendelssohn, H.; Yom-Tov, Y.; Ilany, G.; Meninger, D. (1987). "On the occurrence of Blanford's fox, Vulpes cana Blanford, 1877, in Israel and Sinai". Mammalia. 51: 459–462.
  8. Mallon, D.; Budd, K. (2011). Regional Red List Status of Carnivores in the Arabian Peninsula (Report). Cambridge, UK; Gland, Switzerland; and Sharjah, UAE: IUCN and Environment and Protected Areas Authority.
  9. Llewellyn-Smith, R.E. (2000), A short note on Blanford's fox Vulpes cana in the mountains of Ras Al Khaimah, Tribulus 10.1:23–24
  10. Duncan, Gillian (27 March 2019). "Rare fox spotted in Al Ain for first time in almost 20 years". The National. Retrieved 31 March 2019.
  11. "Rare creature caught on camera in UAE after 17 years". Khaleej Times. 30 March 2019. Retrieved 31 March 2019.
  12. Cunningham & Wronski (2009). "Blanford's fox confirmed in the At-Tubaiq Protected Area (norther Saudi Arabia) and the Ibex Reserve (central Saudi Arabia)" (PDF). Canid News. IUCN/SSC Specialist Group. 12 (4). ISSN 1478-2677.
  13. Geffen, Eli (2 June 1994). "Vulpes cana". Mammalian Species (462): 1–4. doi:10.2307/3504271. ISSN 0076-3519. JSTOR 3504271. Retrieved 10 November 2020.
  14. Geffen, Eli; Hefner, Reuven; Macdonald, David W.; Ucko, Michal (September 1992). "Morphological adaptations and seasonal weight changes in Blanford's fox, Vulpes cana". Journal of Arid Environments. 23 (3): 287–292. Bibcode:1992JArEn..23..287G. doi:10.1016/S0140-1963(18)30518-4. ISSN 0140-1963. Retrieved 9 November 2020.
  15. Burnie, D.; Wilson, D. E., eds. (2005), Animal: The Definitive Visual Guide to the World's Wildlife, DK Adult, ISBN 0-7894-7764-5
  16. Geffen, Eli (24 June 2004). David W. Macdonald; Claudio Sillero-Zubiri (eds.). The Biology and Conservation of Wild Canids. New York: Oxford University Press. ISBN 978-0-19-152335-9.
  17. Sillero-Zubiri, Claudio; Hoffman, Michael; MacDonald David W., eds. (2004). Canids: foxes, wolves, jackals, and dogs (PDF). Gland, Switzerland and Cambridge, UK: IUCN/SSC Canid Specialist Group. pp. 194–198. ISBN 978-2-8317-0786-0. Archived from the original (PDF) on 30 October 2011.
  18. Geffen, Eli (2003). "Behavioral and Physiological Adaptations of Foxes to Hot Arid Environments: Comparing Saharo-Arabian and North American Species". The Swift Fox: Ecology and Conservation of Swift Foxes in a Changing World. 34: 223–229.
  19. Geffen, Eli; Macdonald, David W (1993). "Activity and movement patterns of Blanford's foxes" (PDF). Journal of Mammalogy. 74 (2): 455–463. doi:10.2307/1382402. ISSN 1545-1542. JSTOR 1382402.
  20. Roberts, T. J. (1977). The Mammals of Pakistan. London and Tonbridge: Ernest Benn. p. 361. ISBN 978-0-510-39900-9.
  21. Geffen, E.; Hefner, R.; Macdonald, D. W.; Ucko, M. (26 May 1992). "Diet and Foraging Behavior of Blanford's Foxes, Vulpes cana, in Israel". Journal of Mammalogy. 73 (2): 395–402. doi:10.2307/1382074. ISSN 1545-1542. JSTOR 1382074. Retrieved 10 November 2020.
  22. Heiser, M. (2007). "Vulpes cana". Animal Diversity Web.

Further reading
  • Abu Baker, M. A. et al., (2004). On the Current Status and Distribution of Blanford's fox, Vulpes cana Blanford, 1877, in Jordan (Mammalia: Carnivora: Canidae). Turk. J. Zool., 28: 1–6.
  • Geffen, E., R. Hefner, D. W. Macdonald & Ucko M. (1992). Habitat selection and home range in the Blanford's fox, Vulpes cana: compatibility with the Resource Dispersion Hypothesis. Oecologia 91: 75–81.
  • Geffen, E. (1994). Blanford's fox, Vulpes cana. Mammalian Species, 462:1–4.
  • Stuart, C.T. & Stuart, T. (1995). Canids in the southeastern Arabian Peninsula. Canid News 3:30–32.
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