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Coke's hartebeest | |
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At the Ngorongoro Crater, Tanzania | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Artiodactyla |
Family: | Bovidae |
Subfamily: | Alcelaphinae |
Genus: | Alcelaphus |
Species: | |
Subspecies: | A. b. cokii |
Trinomial name | |
Alcelaphus buselaphus cokii | |
The range |
Coke's hartebeest (Alcelaphus buselaphus cokii), or kongoni, is a large migratory antelope that is native to Kenya and Tanzania.
It can be bred with Lelwel hartebeest to produce a hybrid known as the Kenya Highland hartebeest (Alcelaphus buselaphus lelwel x cokii).
The Coke's hartebeest has a long and narrow face with pointed ears. It has long legs, a sloping back, and ridged horns that are found in both males and females. It has short reddish-brown fur, a white rump, and a short tail with a blackish tuft at the end. Calves have a paler appearance.
Male kongonis may measure anywhere from 117–124 cm (46-48 inches) and weigh about 129–171 kg (284-376 lbs), while female Kongonis are slightly smaller with a height of 112 cm (44 inches) and weigh around 116–148 kg (255-326 lbs). The horns may be up to 70 cm long.
The Coke's hartebeest herds represent mostly female hierarchies with a typical number of 6-30 individuals. They are semi-closed to outsiders. These herds are largely migratory. Territorial bulls usually remain separate from the females except when they're actively herding or courting.
Females can sometimes stay indefinitely on a single territory as harems. Male-only herds can be up to 35 individuals.
Pregnant females often isolate, only accompanied by one or sometimes more previous offspring. Newly birthed calves take about 30 minutes to steadily stand. Within 10 minutes, calves can walk and run. The hiding and isolation phase of females and new calves lasts for 2 weeks. Female Coke's hartebeest calve every 9–10 months, too early for the last calf to become independent.
Male calves accompany their mothers for up to 2 years, a year longer than other alcelaphines, although they mature at the same age as wildebeests, at 3–4 years. Male calves may simply run away from the original herd or be chased away by the dominant bull at 3 years, when they join bachelor herds. Between 3–4 years, males may leave the bachelor herds and begin searching for their own territories.
The hot and dry environment of the Coke’s hartebeest has led to the development of several thermoregulatory adaptations. This species uses panting as a means of evaporative cooling that responds to skin temperature rather than core body temperature. [3] Cutaneous water loss is limited through maintenance of a lower basal metabolic rate, [3] which also aids in hartebeest water economy. Most desert animals maintain a lower metabolic rate in keeping with the low nutrient availability within their environments. For hartebeest, the metabolic response during the fasted state (when food has been digested and stored) leads to adaptations that aid in protein conservation. Furthermore, they have a low water turnover amount of 9-17 liters/kg per day, in comparison to other bovines of similar size, such as the eland, which has a turnover rate of 12.7 liters/kg per day. [4] This helps the Coke’s hartebeest limit its water expenditure in hot and arid habitats.
Wildebeest, also called gnu, are antelopes of the genus Connochaetes and native to Eastern and Southern Africa. They belong to the family Bovidae, which includes true antelopes, cattle, goats, sheep, and other even-toed horned ungulates. There are two species of wildebeest: the black wildebeest or white-tailed gnu, and the blue wildebeest or brindled gnu.
The impala or rooibok is a medium-sized antelope found in eastern and southern Africa. The only extant member of the genus Aepyceros, and tribe Aepycerotini, it was first described to Europeans by German zoologist Hinrich Lichtenstein in 1812. Two subspecies are recognised—the grassland-dwelling common impala, and the larger and darker black-faced impala, which lives in slightly more arid, scrubland environments. The impala reaches 70–92 cm (28–36 in) at the shoulder and weighs 40–76 kg (88–168 lb). It features a glossy, reddish brown coat. The male's slender, lyre-shaped horns are 45–92 cm (18–36 in) long.
The sitatunga or marshbuck is a swamp-dwelling medium-sized antelope found throughout central Africa, centering on the Democratic Republic of the Congo, the Republic of the Congo, Cameroon, parts of Southern Sudan, Equatorial Guinea, Burundi, Ghana, Botswana, Rwanda, Zambia, Gabon, the Central African Republic, Tanzania, Uganda and Kenya. The sitatunga is mostly confined to swampy and marshy habitats. Here they occur in tall and dense vegetation as well as seasonal swamps, marshy clearings in forests, riparian thickets and mangrove swamps.
The greater kudu is a large woodland antelope, found throughout eastern and southern Africa. Despite occupying such widespread territory, they are sparsely populated in most areas due to declining habitat, deforestation, and poaching. The greater kudu is one of two species commonly known as kudu, the other being the lesser kudu, T. imberbis.
The common eland, also known as the southern eland or eland antelope, is a large-sized savannah and plains antelope found in East and Southern Africa. An adult male is around 1.6 m (5.2 ft) tall at the shoulder and can weigh up to 942 kg (2,077 lb) with a typical range of 500–600 kg (1,100–1,300 lb), 340–445 kg (750–981 lb) for females).
The giant eland, also known as the Lord Derby's eland and greater eland, is an open-forest and savanna antelope. A species of the family Bovidae and genus Taurotragus, it was described in 1847 by John Edward Gray. The giant eland is the largest species of antelope, with a body length ranging from 220–290 cm (87–114 in). There are two subspecies: T. d. derbianus and T. d. gigas.
The sable antelope is a large antelope which inhabits wooded savanna in East and Southern Africa, from the south of Kenya to South Africa, with a separated population in Angola.
The hirola, also called the Hunter's hartebeest or Hunter's antelope, is a critically endangered antelope species found as of now, only in Kenya along the border of Somalia. It was first described by the big game hunter and zoologist H.C.V. Hunter in 1888. It is the only living member of the genus Beatragus, though other species are known from the fossil record. The global hirola population is estimated at 300–500 animals and there are none in captivity. According to a document produced by the International Union for Conservation of Nature "the loss of the hirola would be the first extinction of a mammalian genus on mainland Africa in modern human history".
The common tsessebe or sassaby is the southern, nominate subspecies of Damaliscus lunatus, although some authorities have recognised it as an independent species. It is most closely related to the Bangweulu tsessebe, sometimes also seen as a separate species, less to the topi, korrigum, coastal topi and tiang subspecies of D. lunatus, and less to the bontebok in the same genus. Common tsessebe are found in Angola, Zambia, Namibia, Botswana, Zimbabwe, Eswatini, and South Africa.
The hartebeest, also known as kongoni or kaama, is an African antelope. It is the only member of the genus Alcelaphus. Eight subspecies have been described, including two sometimes considered to be independent species. A large antelope, the hartebeest stands just over 1 m at the shoulder, and has a typical head-and-body length of 200 to 250 cm. The weight ranges from 100 to 200 kg. It has a particularly elongated forehead and oddly-shaped horns, a short neck, and pointed ears. Its legs, which often have black markings, are unusually long. The coat is generally short and shiny. Coat colour varies by the subspecies, from the sandy brown of the western hartebeest to the chocolate brown of the Swayne's hartebeest. Both sexes of all subspecies have horns, with those of females being more slender. Horns can reach lengths of 45–70 cm (18–28 in). Apart from its long face, the large chest and the sharply sloping back differentiate the hartebeest from other antelopes. A conspicuous hump over the shoulders is due to the long dorsal processes of the vertebrae in this region.
Lichtenstein's hartebeest is a subspecies of the hartebeest antelope that dwells in savannahs and floodplains of Southeastern-Central Africa. It is sometimes classified as a unique species, Sigmoceros lichtensteinii.
The kob is an antelope found across Central Africa and parts of West Africa and East Africa. Together with the closely related reedbucks, waterbucks, lechwe, Nile lechwe, and puku, it forms the Reduncinae tribe. Found along the northern savanna, it is often seen in Murchison Falls and Queen Elizabeth National Park, Uganda; Garamba and Virunga National Park, and the Democratic Republic of the Congo, as well as grassy floodplains of South Sudan. Kob are found in wet areas, where they eat grasses. Kob are diurnal, but inactive during the heat of the day. They live in groups of either females and calves or just males. These groups generally range from five to 40 animals.
The gerenuk, also known as the giraffe gazelle, is a long-necked, medium-sized antelope found in parts of East Africa. The sole member of the genus Litocranius, the gerenuk was first described by the naturalist Victor Brooke in 1879. It is characterised by its long, slender neck and limbs. The antelope is 80–105 centimetres tall, and weighs between 18 and 52 kilograms. Two types of colouration are clearly visible on the smooth coat: the reddish brown back or the "saddle", and the lighter flanks, fawn to buff. The horns, present only on males, are lyre-shaped. Curving backward then slightly forward, these measure 25–44 cm.
The waterbuck is a large antelope found widely in sub-Saharan Africa. It is placed in the genus Kobus of the family Bovidae. It was first described by Irish naturalist William Ogilby in 1833. Its 13 subspecies are grouped under two varieties: the common or ellipsiprymnus waterbuck and the defassa waterbuck. The head-and-body length is typically between 177 and 235 cm and the typical height is between 120 and 136 cm. In this sexually dimorphic antelope, males are taller and heavier than females. Males reach roughly 127 cm (50 in) at the shoulder, while females reach 119 cm (47 in). Males typically weigh 198–262 kg (437–578 lb) and females 161–214 kg (355–472 lb). Their coat colour varies from brown to grey. The long, spiral horns, present only on males, curve backward, then forward, and are 55–99 cm (22–39 in) long.
The blue wildebeest, also called the common wildebeest, white-bearded gnu or brindled gnu, is a large antelope and one of the two species of wildebeest. It is placed in the genus Connochaetes and family Bovidae, and has a close taxonomic relationship with the black wildebeest. The blue wildebeest is known to have five subspecies. This broad-shouldered antelope has a muscular, front-heavy appearance, with a distinctive, robust muzzle. Young blue wildebeest are born tawny brown, and begin to take on their adult coloration at the age of 2 months. The adults' hues range from a deep slate or bluish-gray to light gray or even grayish-brown. Both sexes possess a pair of large curved horns.
Damaliscus lunatus is a large African antelope of the genus Damaliscus and subfamily Alcelaphinae in the family Bovidae, with a number of recognised geographic subspecies. Some authorities have split the different populations of the species into different species, although this is seen as controversial. Common names include topi, sassaby, tiang and tsessebe.
The bubal hartebeest, also known as northern hartebeest or bubal antelope or simply bubal is the extinct nominal subspecies of hartebeest. It was formerly found north of the Saharan Desert. Other subspecies live currently in grasslands south of the Sahara, from Senegal in the west to Eritrea and Ethiopia in the east and down to central Tanzania. The red hartebeest and Lichtenstein's hartebeest, alternatively considered subspecies or sister species of the common hartebeest, are present in southern Africa.
The red hartebeest, also called the Cape hartebeest or Caama, is a subspecies of the hartebeest found in Southern Africa. More than 130,000 individuals live in the wild. The red hartebeest is closely related to the tsessebe and the topi.
The Lelwel hartebeest, also known as Jackson's hartebeest, is an antelope native to Central African Republic, Chad, the Democratic Republic of the Congo, Ethiopia, Kenya, Sudan, Tanzania, and Uganda.
The western hartebeest is an antelope native to the medium to tall grassland plains of Benin, Burkina Faso, Cameroon, the Central African Republic, Chad, Côte d'Ivoire, Ghana, Guinea, Guinea-Bissau, Mali, Niger, Nigeria, Senegal, and Togo. It is possibly extirpated from Gambia.