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Home -> Kingdom Animalia -> Phylum Chordata -> Subphylum Vertebrata -> Class Mammalia -> Order Artiodactyla -> Family Cervidae -> Subfamily Cervinae -> Species Przewalskium albirostris

Przewalskium albirostris
white-lipped deer
(Also: Thorold's deer)



2008/07/20 07:43:24.923 GMT-4

By Pam Ehler

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Order: Artiodactyla
Family: Cervidae
Subfamily: Cervinae
Genus: Przewalskium
Species: Przewalskium albirostris

Geographic Range

White-lipped deer are native to the Tibetan Plateau region of west central China. (Massicot, 2001; Nowak, 1991)

Biogeographic Regions:
palearctic (native ).

Habitat

Elevation
3500 to 5000 m
(11480 to 16400 ft)


Przewalskium albirostris inhabit the high altitude rhododendron and coniferous forests and alpine meadows of the Tibetan Plateau. Rough terrain and areas of high hunting pressure result in a patchy distribution of these deer throughout their preferred habitats. (Nowak, 1991; Schaller, 1998)

These animals are found in the following types of habitat:
temperate ; terrestrial .

Terrestrial Biomes:
forest ; mountains .

Physical Description

Mass
130 to 140 kg; avg. 135 kg
(286 to 308 lbs; avg. 297 lbs)


Length
190 to 200 cm; avg. 195 cm
(74.8 to 78.74 in; avg. 76.77 in)


White-lipped deer, as their name implies, have a characteristic pure white marking around their mouth and on the underside of the throat. The inner side of the legs and the underside of the body is also a whitish color. The overall coloration is dark brown during the summer and lightens during the winter. The fur, which lacks the typical undercoat hairs, is thick and course. A saddle-like appearance is created on the center of the deer's back, which is caused by the hair lying in the opposite direction. The fur coat is twice as long in the winter as it is during the summer.

Przewalskium albirostris are one of the largest members of the deer family. Unlike other members of the family, P. albirostris have broad rounded hooves much like those of a cow. These hooves are specialized for climbing on steep, rough terrain. Females have a tuft of hair between their narrow, lance shaped ears. The 5 to 6 pointed antler rack of males protrudes forward and is flattened, like those of caribou. The white colored (rarely light brown) rack can weigh up to 7 kilograms and reach l.3 meters. (Hoffman, August 2001; Nowak, 1991; Parker, 1990)

Some key physical features:
endothermic ; homoiothermic; bilateral symmetry .

Reproduction

Breeding interval
White-lipped deer breed once yearly.

Breeding season
White-lipped deer breed in October and November.

Number of offspring
1 to 2; avg. 1

Gestation period
7.67 to 8.33 months; avg. 8 months

Time to weaning
10 months (average)

Age at sexual or reproductive maturity (female)
15 months (average)

Age at sexual or reproductive maturity (male)
15 months (average)

Most of the year, males and females travel in separate herds. During the breeding season, or rut, around October through November, males intermingle with female herds. Mixed herds at the peak of the mating season have been reported to range between 50 and 300 deer. Males expend large amounts of energy during the breeding season in mating and in male-male aggressive encounters. Most males lose weight during this period. Males compete amongst themselves for access to females.

Mating systems:
polygynous .

White-lipped deer are born from May through late June. The well developed baby stays with its mother and is not weaned for at least 10 months.

Key reproductive features:
iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; viviparous .

Young white-lipped deer, which are able to stand only a half hour after birth, stay and travel with their mothers in female herds. Two to three days after birth, the mother will take her fawn into a more sheltered area away from the birth place. The baby is left to rest at times but is never out of the mother's sight. If she sees that something is near the baby, the mother will attempt to cause a distraction by running in the opposite direction. After the fawn is weaned at about 10 months of age, it joins the sex-segregated herds. Young males move to the male herd, young females stay in the herd in which they were raised and travel with their mothers, though they are no longer dependent upon them. (Harris et al., 1999; Schaller, 1998)

Parental investment:
precocial ; pre-fertilization (provisioning, protecting: female); pre-hatching/birth (provisioning: female, protecting: female); pre-weaning/fledging (provisioning: female).

Lifespan/Longevity

Extreme lifespan (wild)
18 years (high)

Extreme lifespan (captivity)
19 years (high)

White-lipped deer have been recorded living 19 years in captivity. Many people in China are raising these deer on farms and they are kept in zoos for public display. Those in the wild may for 16 to 18 years. (Massicot, 2001; Nowak, 1991)

Behavior

Przewalskium albirostris are most active during the day. They are most often found in high, remote areas where human influence is minimal. They travel in herds, in groups separated by gender and age much like red deer (Cervus elaphus). Juvenile males travel as one small group. Females who are pregnant, those still nursing their young, and pre-adult females travel in another group. Older males travel alone. During the mating season mixed-sex groups occur. (Parker, 1990; Schaller, 1998)

Key behaviors:
cursorial; terricolous; diurnal ; motile ; social ; dominance hierarchies .

Food Habits

White-lipped deer are exclusively herbivorous. They graze mainly on grasses but will also eat other foliage. Foods eaten include: grasses mainly Stipa, Kobresia, and Carex spp., sedges and herbs. (Harris et al., 1999; Massicot, 2001)

Primary Diet:
herbivore (folivore ).

Plant Foods:
leaves; wood, bark, or stems.

Predation

Known predators

White-lipped deer are herd animals and, therefore, rely upon the vigilance of every herd member in detecting predators. They are fast and agile runners and can defend themselves with their sharp hooves. Female white-lipped deer will attempt to distract predators from their young by causing a disturbance and running away from where the fawn is hidden. (Laidler and Laidler, 1996)

Ecosystem Roles

White-lipped deer play an important role as prey animals for large predators. They also limit vegetation growth and determine vegetative structure through their grazing. (Laidler and Laidler, 1996; Schaller, 1998)

Economic Importance for Humans: Negative

There are no known negative effects of white-lipped deer.

Economic Importance for Humans: Positive

Aside from being hunted as a food source by Chinese and Tibetan peoples, Przewalskium albirostris are poached for their enormous antlers. The antlers and other body parts are used as a source of oriental medicine. (Massicot, 2001)

Ways that people benefit from these animals:
food ; source of medicine or drug .

Conservation Status

IUCN Red List: [link]:
Vulnerable.

US Federal List: [link]:
Threatened .

CITES: [link]:
No special status.

According to a team studying in the Tibetan Plateau, numbers of Przewalskium albirostris may be increasing. This team assessed population sizes during the periods of 1990-1992 and 1997. They observed 80-89 deer during September of 1997, compared to only 16 (no more than 50) in early 1990's. This species is otherwise thought to be extremely endangered and rare. (Harris et al., 1999; Parker, 1990)

Other Comments

Przewalskium albirostris is known as "shor" by the Tibetan people. The species was discovered and named by Przewalski during the later 1870's. W. G. Thorold later described the same deer, not knowing that it had already been described, he named it Thorold's deer, Cervus thoroldi, in 1891. (Laidler and Laidler, 1996; Schaller, 1998)

Contributors

Pam Ehler (author), University of Northern Iowa.
Jim Demastes (editor), University of Northern Iowa.

References

Harris, R., D. Pletscher, C. Loggers, D. Miller. 1999. Status and Trends of Tibetan Plateau Mammalian Fauna, Yeniugou, China. Biological Conservation, 87: 13-19.

Hoffman, B. August 2001. "The Ulimate Ungulate Page" (On-line). Accessed October 25, 2001 at http://www.ultimateungulate.com/thorolddeer.html.

Laidler, L., K. Laidler. 1996. China's Treatened Wildlife. London: Blandford.

Massicot, P. 2001. "Animal Info" (On-line). Accessed October 30, 2001 at http://www.animalinfo.org/species/artiperi/cervalbi.htm.

Nowak, R. 1991. Walker's Mammals of the World (5th Edition). Baltimore: Johns Hopkins University Press.

Parker, S. 1990. Grzimek's Encyclopedia of Mammals. New York: McGraw-Hill.

Schaller, G. 1998. Wildlife of the Tibetan Steppe. Chicago: University of Chicago Press.

2008/07/20 07:43:27.573 GMT-4

To cite this page: Ehler, P. 2002. "Przewalskium albirostris" (On-line), Animal Diversity Web. Accessed July 25, 2008 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Przewalskium_albirostris.html.

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

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