Somali wild ass | |
---|---|
A Somali wild ass at the Saint Louis Zoo | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Perissodactyla |
Family: | Equidae |
Genus: | Equus |
Species: | |
Subspecies: | E. a. somaliensis |
Trinomial name | |
Equus africanus somaliensis | |
Synonyms [3] | |
The Somali wild ass (Equus africanus somaliensis) [3] is a subspecies of the African wild ass.
It is found in Somalia, the Southern Red Sea region of Eritrea, and the Afar Region of Ethiopia. The legs of the Somali wild ass are striped, resembling those of its relatives, the zebras.
There are likely fewer than 1,000 animals (or even 700) in the wild [5] and the IUCN Red List of endangered species described it as "critically endangered". This means they face an extremely high risk of extinction in the wild.
A few hundred specimens live in Somalia, Djibouti, Eritrea and Ethiopia. [6]
Somali wild asses typically give birth in the spring, a common characteristic among equids, after a year-long gestation. Within hours, the foal is up on its legs and keeping up with its mother. At around five days old, the foal is already nibbling grass. By the time its two weeks old, the foal is grazing regularly, however, still depending on its mother's milk for fluids. The foal is weaned by 12 to 14 months, but still stays close to its mother, only leaving to play or feed with the other foals in the herd.[ citation needed ]
Due to the limited resources found in their habitat, Somali wild asses live in a fission-fusion society. Most adults live alone, but sometimes form small herds consisting of females and their young. In areas that have more resources, or have more rain, they will sometimes fuse together to form larger temporary herds. Stallions can maintain territories as large as nine square miles. They frequently leave dung piles as markers to remind them of their territory's boundaries. While females are welcome in their territories, stallions will often fight other males who try to mate with females in their territories. However, stallions have been observed allowing males into their territories for grazing, as long as they show no interest in his harem. [7]
As of 2011 [update] , there were about 200 individuals in captivity around the globe [6] living in 34 zoos, as well as three animals (as of 2009) in the Yotvata Hai-Bar Nature Reserve in Israel, to the north of Eilat. [8] The international studbook is managed by Tierpark Berlin. [9]
The leading zoo for breeding the Somali wild ass is Zoo Basel, Switzerland. Its breeding program manages the European studbook for the Somali wild ass and coordinates the European Endangered Species Programme (EEP) [10] – as well as the global species committee of the Somali Wild Ass since 2004. [8]
Zoo Basel started keeping Somali wild asses in 1970 and had its first birth in 1972. Since then, 11 stallions and 24 females (as of 2009) were born and survived childhood. [11] Today, all Somali wild donkeys in captivity are related to the original group at Zoo Basel. [9]
As of January 18, 2012, there are four Somali wild donkeys in Basel: The stallion "Gigolo" (3) and three females (among them "Yogala"-14). [12]
Since 1987, the Réserve Africaine de Sigean, in the south of France, has had a number of Somali wild asses, with births occurring regularly, including two on June 30, 2010, and March 29, 2013. [13] [14]
Only five institutions breed Somali wild ass in the United States: [15] Dallas Zoo, Saint Louis Zoo, [16] San Diego Zoo Safari Park, [17] Zoo Miami, and White Oak Conservation in Yulee, Florida. [15] White Oak received a herd in 2008 as part of an international effort to save Somali wild ass from extinction. Since then, the herd has produced 18 foals, including several born in spring 2013. [15] The Dallas Zoo has just had two Somali wild ass foals, both female, one born July 9 and the other on July 19, 2017. The Saint Louis Zoo's most recent birth was on July 30, 2019. [18]
The San Diego Zoo Safari Park is home to eleven Somali Wild Asses, the largest population of Somali Wild Asses in North America. The park received its first herd from the Basel Zoo in 1981. Their first foal was born in 1986. Since then, 49 foals have been born, the most recent being a female born on March 17, 2018. San Diego Zoo Global also works to help save this endangered species in the wild. [7] [19]
Domestic donkeys found in Italy are typically descended from the Somali wild ass, as opposed to those from other European countries where domesticated stock are usually descended from the Nubian wild ass. [20] [ citation needed ]
A conservation project (mainly supported by Zoo Basel) in Eritrea counted (before 2014) 47 Somali wild asses living in the mountains between the Buri Peninsula and the Dallol Depression, which is within the larger Danakil Depression, near Eritrea's border with Ethiopia. [21] [22] [23] [24]
As mentioned above, a protected population of the Somali wild ass exists in the Yotvata Hai-Bar Nature Reserve. This Israeli reserve was established in 1968 with the view to bolster populations of endangered desert species.
Zebras are African equines with distinctive black-and-white striped coats. There are three living species: Grévy's zebra, the plains zebra, and the mountain zebra. Zebras share the genus Equus with horses and asses, the three groups being the only living members of the family Equidae. Zebra stripes come in different patterns, unique to each individual. Several theories have been proposed for the function of these patterns, with most evidence supporting them as a deterrent for biting flies. Zebras inhabit eastern and southern Africa and can be found in a variety of habitats such as savannahs, grasslands, woodlands, shrublands, and mountainous areas.
Przewalski's horse, also called the takhi, Mongolian wild horse or Dzungarian horse, is a rare and endangered horse originally native to the steppes of Central Asia. It is named after the Russian geographer and explorer Nikolay Przhevalsky. Once extinct in the wild, since the 1990s it has been reintroduced to its native habitat in Mongolia in the Khustain Nuruu National Park, Takhin Tal Nature Reserve, and Khomiin Tal, as well as several other locales in Central Asia and Eastern Europe.
The onager, also known as hemione or Asiatic wild ass, is a species of the family Equidae native to Asia. A member of the subgenus Asinus, the onager was described and given its binomial name by German zoologist Peter Simon Pallas in 1775. Six subspecies have been recognized, two of which are extinct.
The plains zebra is the most common and geographically widespread species of zebra. Its range is fragmented, but spans much of southern and eastern Africa south of the Sahara. Six or seven subspecies have been recognised, including the extinct quagga which was thought to be a separate species. More recent research supports variations in zebra populations being clines rather than subspecies.
The mountain zebra is a zebra species in the family Equidae, native to southwestern Africa. There are two subspecies, the Cape mountain zebra found in South Africa and Hartmann's mountain zebra found in south-western Angola and Namibia.
Equus is a genus of mammals in the family Equidae, which includes horses, asses, and zebras. Within the Equidae, Equus is the only recognized extant genus, comprising seven living species. Like Equidae more broadly, Equus has numerous extinct species known only from fossils. The genus originated in North America and dispersed into the Old World and South America during the Early and Middle Pleistocene. Equines are odd-toed ungulates with slender legs, long heads, relatively long necks, manes, and long tails. All species are herbivorous, and mostly grazers, with simpler digestive systems than ruminants but able to subsist on lower-quality vegetation.
The kiang is the largest of the Asinus subgenus. It is native to the Tibetan Plateau in Ladakh India, northern Pakistan, Tajikistan, China and northern Nepal. It inhabits montane grasslands and shrublands. Other common names for this species include Tibetan wild ass, khyang and gorkhar.
Grévy's zebra, also known as the imperial zebra, is the largest living wild equid and the most threatened of the three species of zebra, the other two being the plains zebra and the mountain zebra. Named after Jules Grévy, it is found in parts of Kenya and Ethiopia. Superficially, Grévy's zebras' physical features can help to identify it from the other zebra species; their overall appearance is slightly closer to that of a mule, compared to the more "equine" (horse) appearance of the plains and mountain zebras. Compared to other zebra species, Grévy's are the tallest; they have mule-like, larger ears, and have the tightest stripes of all zebras. They have distinctively erect manes, and more slender snouts.
Burchell's zebra is a southern subspecies of the plains zebra. It is named after the British explorer and naturalist William John Burchell. Common names include bontequagga, Damaraland zebra, and Zululand zebra. Burchell's zebra is the only subspecies of zebra which may be legally farmed for human consumption.
The African wild ass or African wild donkey is a wild member of the horse family, Equidae. This species is thought to be the ancestor of the domestic donkey, which is sometimes placed within the same species. They live in the deserts and other arid areas of the Horn of Africa, in Eritrea, Ethiopia and Somalia. It formerly had a wider range north and west into Sudan, Egypt, and Libya. It is Critically Endangered, with about 570 existing in the wild.
Grant's zebra is the smallest of the seven subspecies of the plains zebra. This subspecies represents the zebra form of the Serengeti-Mara ecosystem and others across central Africa.
The Yotvata Hai-Bar Nature Reserve is a 3,000-acre (12 km2) breeding and reacclimation center administered by the Israel Nature Reserves & National Parks Authority, situated in the Southern Arava near Yotvata.
The Syrian wild ass, less commonly known as a hemippe, an achdari, or a Mesopotamian or Syrian onager, is an extinct subspecies of onager native to the Arabian Peninsula and surrounding areas. It ranged across present-day Iraq, Palestine, Israel, Iran, Jordan, Saudi Arabia, Syria, and Turkey.
The Atlas wild ass, also known as Algerian wild ass, is a purported extinct subspecies of the African wild ass that was once found across North Africa and parts of the Sahara.
The Nubian wild ass is the nominate subspecies of African wild ass, and one of the ancestors of the domestic donkey, which was domesticated about 6,000 years ago. It is presumed to be extinct, though two populations potentially survive on the Caribbean island of Bonaire and in Gebel Elba.
The breeding programs at Zoo Basel have had many highlights since the zoo's opening in 1874. These include the worldwide first zoo births of an Indian rhinoceros and greater flamingo hatch, as well as the first European gorilla birth. Due to Zoo Basel's successful breeding programs, it manages the international studbook for the Indian rhinoceros and the pygmy hippopotamus, as well as several European studbooks.
Chapman's zebra, named after explorer James Chapman, is a subspecies of the plains zebra from southern Africa.
The Turkmenian kulan, also called Transcaspian wild ass, Turkmenistani onager or simply the kulan, is a subspecies of onager native to Central Asia. It was declared Endangered in 2016.
The Persian onager, also called the Persian wild ass or Persian zebra, is a subspecies of onager native to Iran. It is listed as Endangered, with no more than 600 individuals left in the wild.
Mille-Serdo Wildlife Reserve is a protected area in Ethiopia. It is located in Afar Region of Ethiopia. The reserve protects a portion of the Awash River and the surrounding desert.