Thornicroft's giraffe | |
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Thornicroft's giraffe in Mfuwe, Zambia | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Artiodactyla |
Family: | Giraffidae |
Genus: | Giraffa |
Species: | |
Subspecies: | G. c. thornicrofti |
Trinomial name | |
Giraffa camelopardalis thornicrofti Lydekker, 1911 | |
Range in purple | |
Synonyms | |
G. thornicrofti |
Thornicroft's giraffe (Giraffa camelopardalis thornicrofti), also known as the Rhodesian giraffe or Luangwa giraffe, is a subspecies of giraffe. It is sometimes considered a species in its own right (as Giraffa thornicrofti) [2] or a subspecies of the Masai giraffe (as Giraffa tippelskirchi thornicrofti). [3] [4] [5] It is geographically isolated, occurring only in Zambia’s South Luangwa Valley. [6] An estimated 550 live in the wild, with no captive populations. Its lifespan is 22 years for males and 28 years for females. [7] The ecotype was originally named after Harry Scott Thornicroft, a commissioner in what was then North-Eastern Rhodesia and later Northern Rhodesia.
Thornicroft's giraffes are tall with very long necks. [8] They have long, dark tongues and skin-colored horns. [9] Giraffes have a typical coat pattern, with regional differences among subspecies. The pattern consists of large, irregular shaped brown to black patches separated by white to yellow bands. [9] Male giraffes' coats darken with age, particularly the patches. The darkening of the coat has not been studied extensively enough to indicate absolute age; however, it can estimate relative age of male Thornicroft's giraffes. [7]
Giraffes occur in arid and dry-savannah zones in sub-Saharan Africa, provided trees are available as a food source. Thornicroft's giraffe is endemic to Zambia. [6] Giraffes are herd animals with a flexible social system. [10]
Giraffes are exclusively browsers that primarily feed on leaves and shoots of trees and shrubs. They consume deciduous plants in the wet season and transition to evergreen and semi-evergreen species in the dry season, choosing flowers, fruits, and pods when they are available. They are true ruminants with forestomach fermentation. Their food intake is approximately 2.1% of the body mass of females and 1.6% for males. They can obtain their water through the foliage they consume, but drink regularly when water is available. Giraffes seek out acacia species when browsing. Their feeding stimulates shoot production of the species. [11]
Thornicroft's giraffes breed throughout the year. They reach sexual maturity at approximately six years, and then produce offspring approximately every 677 days. About half of all calves die before one year of age, mostly due to predation. Giraffes[ which? ] can become pregnant while lactating, an unusual characteristic. [12]
Giraffa camelopardalis thornicrofti is endemic to Zambia with a population of less than 550. There are none in captivity. Ecotourism has played a vital role in conservation of all subspecies of giraffes, due to their popularity with tourists. Giraffes as a species are classified as vulnerable according to the IUCN, but their populations are rapidly declining, with some subspecies being listed as critically endangered [13] Their primary threats are poaching, human population growth, habitat loss, habitat fragmentation, and habitat degradation. [14]
The giraffe is a large African hoofed mammal belonging to the genus Giraffa. It is the tallest living terrestrial animal and the largest ruminant on Earth. Traditionally, giraffes have been thought of as one species, Giraffa camelopardalis, with nine subspecies. Most recently, researchers proposed dividing them into up to eight extant species due to new research into their mitochondrial and nuclear DNA, as well as morphological measurements. Seven other extinct species of Giraffa are known from the fossil record.
The Giraffidae are a family of ruminant artiodactyl mammals that share a common ancestor with deer and bovids. This family, once a diverse group spread throughout Eurasia and Africa, presently comprises only two extant genera, the giraffe and the okapi. Both are confined to sub-Saharan Africa: the giraffe to the open savannas, and the okapi to the dense rainforest of the Congo. The two genera look very different on first sight, but share a number of common features, including a long, dark-coloured tongue, lobed canine teeth, and horns covered in skin, called ossicones.
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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.
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The Masai giraffe, also spelled Maasai giraffe, and sometimes called the Kilimanjaro giraffe, is a species or subspecies of giraffe. It is native to East Africa. The Masai giraffe can be found in central and southern Kenya and in Tanzania. It has distinctive jagged, irregular leaf-like blotches that extend from the hooves to its head. The Masai giraffe is currently the national animal of Tanzania.
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Rothschild's giraffe is a subspecies of the Northern giraffe. It is one of the most endangered distinct populations of giraffe, with 1,399 mature individuals estimated in the wild in 2018.
The wildlife of Zambia refers to the natural flora and fauna of Zambia. This article provides an overview, and outline of the main wildlife areas or regions, and compact lists of animals focusing on prevalence and distribution in the country rather than on taxonomy. More specialized articles on particular groups are linked from here.
A genetic isolate is a population of organisms with little genetic mixing with other organisms within the same species due to geographic isolation or other factors that prevent reproduction. Genetic isolates form new species through an evolutionary process known as speciation. All modern species diversity is a product of genetic isolates and evolution.
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The South African giraffe or Cape giraffe is a species or subspecies of giraffe found in South Africa, Namibia, Botswana, Zimbabwe, Eswatini and Mozambique. It has rounded or blotched spots, some with star-like extensions on a light tan background, running down to the hooves.
Henry Scott Thornicroft, nicknamed "Dongolosi"(16 January 1868 – 19 March 1944) was a British Native Commissioner in Petauke, in North-Western Rhodesia and later Northern Rhodesia for 17 years and later a Justice of the Peace in Fort Jameson.
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The Nubian giraffe, also known as Baringo giraffe or Ugandan giraffe, is the nominate subspecies or species of giraffe. It is found in Ethiopia, Kenya, Uganda, South Sudan and Sudan. It is currently extinct in the wild of the Democratic Republic of Congo, Egypt and Eritrea. The Nubian giraffe used to be widespread in northeast Africa. The subspecies was listed as Critically Endangered by the IUCN in 2018 for the first time due to a 95% decline in the past three decades.
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