EQUUS GREVYI PDF

Scientific name. Equus grevyi. Weight. to kilograms ( pounds). Size. to centimeters in length ( inches). Life span. 12 to 13 years. Learn more about the Grevy’s zebra – with amazing Grevy’s zebra videos, photos and facts on Arkive. IUCN ENDANGERED (EN). Facts about this animal. The Grevy’s zebra is the largest of the three zebra species, with a body weight of up to kg. The black.

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Compared with other zebras, it is tall, has large ears, and its stripes are narrower. It differs from the other zebra species in that it does not live in harems and has few long-lasting social bonds. This zebra is considered to be endangered. Its population has declined from 15, to 3, since the s. However, as ofthe population is stable.

Grevy’s Zebra

Traditionally, this species was classified in the subgenus Equuz with plains zebra and mountain zebra in Hippotigris. Fossils of zebra-like equids have been found throughout Africa and Asia in the Pliocene and Pleistocene deposits.

The mane is tall and erect; juveniles have a mane that extends to the length of the back and shortens as they reach adulthood. As with all zebra species, the Grevy’s zebra’s pelage has a black and white striping pattern.

Eqyus stripes are narrow and close-set, being broader on the neck, and they extend to the hooves. Foals are born with brown and white striping, with the brown stripes darkening as they grow older.

It appears that a stationary zebra can be inconspicuous at night or in shade. Grevy’s zebras can survive up to a week without water, but will drink daily when it is plentiful. African hunting dogscheetahs and leopards almost never attack adults, even in desperate times, but sometimes prey on young animals, although females are fiercely protective of their young.

Adult males mostly live in territories during the wet seasons but some may stay in them year round if there’s enough water left. Females, young and non-territorial males wander through large home ranges. The females will wander from territory to territory preferring the ones with the highest-quality food and water sources.

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The stallion shows his dominance with an arched neck and a high-stepping gait and the least dominant stallions submit eqius extending their tail, lowering equsu heads and nuzzling their superior’s chest or groin. Zebras produce numerous sounds and vocalisations, when alarmed, they produce deep hoarse grunts. Whistling and squealing are made when alarmed, during fights, or when scared or in pain.

Snorting may be produced when scared or as a warning. A male will bray in defense of its territory, when driving females, or keeping other males at bay. Barking may be made during copulation and distressed foals will squeal. They also rub against trees, rocks and other objects to get rid of irritations like itchy skin, hair or parasites. Among territorial stallions, the most dominant ones control territories near water sources, which mostly attract mares with dependant foals, [23] while more subordinate stallions control qeuus away from water with greater amounts of vegetation, which mostly attract mares without dependant foals.

The resident stallions of territories will try to subdue the entering mares with dominance rituals and then continue with courtship and copulation. A newborn zebra will follow anything that moves, so new mothers prevent other mares from approaching their foals while imprinting their own striping pattern, scent and vocalisation on them.

While the foal will not likely be his, the stallion will look after it to ensure that the female stays in his territory. There, research is underway in partnership with the Conservation Centers for Species Survival on semen collection and freezing and on artificial insemination.

In Kenya, it is protected by the hunting ban of However, hunting has declined and the main threat wquus the zebra is habitat loss and competition with livestock. In Kenya, important protected areas include the Buffalo SpringsSamburu and Shaba National Reserves and the private and community land wildlife conservancies in Isiolo, Samburu and the Laikipia Plateau. The mesquite plant was introduced into Ethiopia around and is endangering the zebra’s food supply. An invasive species, it is replacing the two grass species, Cenchrus ciliaris and Chrysopogon plumulosus, which the zebras eat for most of their food.

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From Wikipedia, the free encyclopedia. Oustalet[4]. Grwvyi Species of the World: A Taxonomic and Geographic Reference 3rd ed. Johns Hopkins University Press.

Retrieved April 6, International Union for Conservation of Nature. Retrieved 10 April Database entry includes a brief justification of why this species is endangered. Horns, Tusks, and Flippers: The Evolution of Hoofed Mammals’.

Molecular Biology and Evolution. The Behavior Guide to African Grevji. University of California Press. University of Chicago Press.

African Journal of Ecology. Archived from the original on grfvyi October Behavioral Ecology and Sociobiology. Advances in the Study Behavior: Behavioral Ecology of Tropical AnimalsVol. Ecological Aspects of Social Evolution.

Zebras, Asses and Horses. Status Survey and Conservation Action Plan’. Retrieved 21 June Species of the genus Equus. Cape mountain zebra Equus zebra zebra Hartmann’s mountain zebra Equus zebra hartmannae.

Equidae Evolution of the horse Wild horse Domestication of the horse. Extant Perissodactyla Odd-toed ungulates grveyi by suborder. African wild ass E.

Retrieved from ” https: Good articles Articles with ‘species’ microformats Use dmy dates from December Views Read Edit View history. In other projects Wikimedia Commons Wikispecies.

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Gr√©vy’s zebra – Wikipedia

Equus grevyi Oustalet[4]. Equus including Zebras Subgenus Equus: Rhinoceros Indian rhinoceros R. Tapirus Baird’s tapir T.