Bactrian Camel

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Bactrian Camel
Image:Bactrian.camel.sideon.arp.jpg
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Camelidae
Genus: Camelus
Species: C. bactrianus
Binomial name
Camelus bactrianus
Linnaeus, 1758
Image:Leefgebied kameel.JPG
Bactrian Camel range

The Bactrian camel (Camelus bactrianus) is a large even-toed ungulate native to the steppes of eastern Asia. The Bactrian camel has two humps on its back, in contrast to the dromedary which has one.

Nearly all of the estimated 1.4 million Bactrian camels alive today are domesticated, but in October 2002 the estimated 950 remaining in the wild in northwest China and Mongolia were placed on the critically endangered species list.[1]

Contents

[edit] Physical characteristics and habitat

Image:Bactrian camel.jpg
A Bactrian camel in the Kyzyl Kum desert in Uzbekistan.
Image:CamelFrankfurt.jpg
A Bactrian camel in Frankfurt Zoo

Bactrian camels are over 2 meters (7 feet) tall at the hump and weigh in excess of 725 kg (1,600 lb). They are herbivores, eating grass, leaves, and grains, capable of drinking up to 120 litres (32 US gallons) of water at a time. In the wilds of Mongolia, this is usually in the form of ice or snow eaten in small but frequent amounts [2]. Their mouths are extremely tough, allowing them to eat thorny desert plants like asparagus.

They are supremely adapted to protect themselves against the desert heat and sand, with wide, padded feet and thick leathery pads on the knees and chest, nostrils that can open and close, ears lined with protective hairs, and bushy eyebrows with two rows of long eyelashes. Thick fur and underwool keep the animal warm during cold desert nights and also insulate against daytime heat.

Bactrian camels have two coats: the warm inside coat of down and a rough outer coat which is long and hairy. They shed their hair in clumps consisting of both coats, which can be gathered and separated. They produce approximately 7 kg (15 lb) of fibre annually. The fibre structure is similar to cashmere wool. The down is usually 2 to 8 cm (1–3 inches) long. While camel down does not felt easily, it may be spun into a yarn for knitting.

The dromedary (Camelus dromedarius) is the only other surviving camel, native to the Sahara desert, but today is extinct in the wild. By comparison, the Bactrian camel is a stockier, hardier animal able to survive temperature extremes from the scorching desert heat of northern Iran to the frozen winters in Tibet [3]. The Dromedary is taller and faster, and with a rider it can maintain 8–9 mph for hours at a time. A loaded Bactrian Camel moves at about 2.5 mph [4]. Bactrian camels are also found in Hunder Sand Dunes in Nubra Valley, Ladakh. There are approx 2000 camels in Nubra.

[edit] History

It is thought that the Bactrian camel was domesticated (independently from the dromedary) sometime before 2500 BC[5], probably in northern Iran, Northeast Afghanistan[5] and Northern Pakistan or southwestern Turkestan[citation needed]. The dromedary is believed to have been domesticated between 4000 BCE and 2000 BCE[6] in Arabia. The wild population of Bactrian camels was first described by Nikolai Przhevalsky in the late 19th century.

[edit] Subspecies

There is some evidence that the Bactrian camel can be divided up into different subspecies. In particular, it has been discovered that a population of wild Bactrian camel lives within a part of the Gashun Gobi region of the Gobi Desert. This population is distinct from domesticated herds both in genetic makeup and in behavior. However, the significance of those differences has not yet been demonstrated.

There are possibly as many as three regions in the genetic makeup that are distinctly different from domesticated camels and there is up to a 3% difference in the base genetic code. However, with so few wild camels, it is unclear what the natural genetic diversity within a population would have been.

Canadian researcher William Sommers found that these wild camels had the ability to drink saltwater slush, although it is not yet certain the camel can extract useful water from it. Domesticated camels do not attempt to drink salt water, though the reason is unknown.

[edit] Gallery

[edit] References

  1. ^ Hare (2002). Camelus bactrianus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Database entry includes justification for why this species is critically endangered
  2. ^ Planet Earth Deserts. Retrieved on April 29, 2007.
  3. ^ Creature Features - Pet Facts: Camels. Retrieved on December 5, 2005.
  4. ^ Camel. Retrieved on December 5, 2005.
  5. ^ a b "camel." Encyclopædia Britannica. 2007. Encyclopædia Britannica Online. 11 Feb. 2007 <[1]>.
  6. ^ Al-Swailem et al. 2007. Classification of Saudi Arabian camel (Camelus dromedarius) subtypes based on RAPD technique.Journal of Food, Agriculture & Environment Vol.5 (1) : 143-148. Online pdf

[edit] External links

Wikimedia Commons has media related to:
Camelus bactrianus
Wikispecies has information related to:
Camelus bactrianus
af:Baktriese Kameel

bg:Двугърба камила cs:Velbloud dvouhrbý da:Kamel de:Trampeltier es:Camelus bactrianus eo:Baktria kamelo eu:Gamelu fr:Chameau de Bactriane hr:Dvogrba deva id:Unta Baktrian ia:Camelo is:Kameldýr it:Camelus bactrianus he:גמל דו דבשתי la:Camelus bactrianus lt:Dvikupris kupranugaris hu:Kétpúpú teve nl:Kameel ja:フタコブラクダ no:Baktriakamel oc:Camelus bactrianus pl:Baktrian pt:Camelo-bactriano ru:Бактриан sh:Baktrijska kamila sv:Kamel vi:Lạc đà hai bướu tr:Çift hörgüçlü deve zh-yue:雙峰駱駝 zh:双峰骆驼

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