Rothschild's giraffe (''Giraffa camelopardalis rothschildi'') 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.

Taxonomy and evolutionary history

Rothschild giraffe in Murchison Falls National Park

The IUCN currently recognizes only one species of giraffe with nine subspecies. ''Giraffa camelopardalis rothschildi'' is named after the Tring Museum's founder,

Walter Rothschild Lionel Walter Rothschild, 2nd Baron Rothschild, Baron de Rothschild, (8 February 1868 – 27 August 1937) was a British banker, politician, zoologist and soldier, who was a member of the Rothschild family. As a Zionist leader, he was presen ...

, and is also known as the Baringo giraffe, after the

Lake Baringo Lake Baringo is, after Lake Turkana, the most northern of the Kenyan Rift Valley lakes, with a surface area of and an elevation of . The lake is fed by several rivers: the Molo, Perkerra and Ol Arabel. It has no obvious outlet; the waters ar ...

area of Kenya, or as the Ugandan giraffe. All of those living in the wild are in protected areas in

Kenya ) , national_anthem = " Ee Mungu Nguvu Yetu"() , image_map = , map_caption = , image_map2 = , capital = Nairobi , coordinates = , largest_city = Nairobi ...

and

Uganda }), is a landlocked country in East Africa. The country is bordered to the east by Kenya, to the north by South Sudan, to the west by the Democratic Republic of the Congo, to the south-west by Rwanda, and to the south by Tanzania. The sou ...

. In 2007, Rothschild's giraffe was proposed as a separate species from other giraffe. In 2016, Rothschild's giraffe was proposed as conspecific with the Nubian giraffe (elevated to full species), but that taxonomy has not been widely adopted.

Characteristics

The Rothschild's giraffe is easily distinguishable from other subspecies. The most obvious sign is in the coloring of the coat or

pelt Fur is a thick growth of hair that covers the skin of mammals. It consists of a combination of oily guard hair on top and thick underfur beneath. The guard hair keeps moisture from reaching the skin; the underfur acts as an insulating blanket ...

. Whereas the

reticulated giraffe The reticulated giraffe (''Giraffa camelopardalis reticulata'' or ''G. reticulata''), also known as the Somali giraffe, is a subspecies or species of giraffe native to the Horn of Africa. It lives in Somalia, southern Ethiopia, and northern Ken ...

has very clearly defined dark patches with bright-whitish channels between them, Rothschild's giraffe more closely resembles the

Masai giraffe The Masai giraffe (''Giraffa camelopardalis tippelskirchi'' or ''Giraffa tippelskirchi''), also spelled Maasai giraffe, and sometimes called Kilimanjaro giraffe, is a subspecies or species of giraffe. It is native to East Africa. The Masai gira ...

. However, when compared to the Masai giraffe, the Rothschild's

ecotype In evolutionary ecology, an ecotype,Greek: ''οίκος'' = home and ''τύπος'' = type, coined by Göte Turesson in 1922 sometimes called ecospecies, describes a genetically distinct geographic variety, population, or race within a specie ...

is paler, the orange-brown patches are less jagged and sharp in shape, and the connective channel is of a creamier hue compared to that seen on the reticulated giraffe. In addition, Rothschild's giraffe displays no markings on the lower leg, giving it the impression of wearing white stockings. Another distinguishing feature of Rothschild's giraffe, although harder to spot, is the number of

ossicone Ossicones are columnar or conical skin-covered bone structures on the heads of giraffes, male okapi, and some of their extinct relatives. Ossicones are distinguished from the superficially similar structures of horns and antlers by their uniqu ...

s on the head. This is the only '' Giraffa''

phenotype In genetics, the phenotype () is the set of observable characteristics or traits of an organism. The term covers the organism's morphology or physical form and structure, its developmental processes, its biochemical and physiological pr ...

to be born with five ossicones. Two of these are the larger and more obvious ones at the top of the head, which are common to all giraffes. The third ossicone can often be seen in the center of the giraffe's forehead, and the other two are behind each ear. They are also taller than many other populations, measuring up to tall. They can weigh up to 2,500 pounds. Males are larger than females by a few hundred pounds and their two largest ossicones are usually bald from sparring. They usually tend to be darker in colour than the females, although this is not a guaranteed sexing indicator.

Habitat and distribution

Isolated populations of Rothschild's giraffes live in savannahs,

grassland A grassland is an area where the vegetation is dominated by grasses ( Poaceae). However, sedge ( Cyperaceae) and rush ( Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur na ...

s, and open

woodland A woodland () is, in the broad sense, land covered with trees, or in a narrow sense, synonymous with wood (or in the U.S., the ''plurale tantum'' woods), a low-density forest forming open habitats with plenty of sunlight and limited shade (se ...

s of Uganda and Kenya. They are possibly regionally extinct from

South Sudan South Sudan (; din, Paguot Thudän), officially the Republic of South Sudan ( din, Paankɔc Cuëny Thudän), is a landlocked country in East Africa. It is bordered by Ethiopia, Sudan, Central African Republic, Democratic Republic of the ...

and northeastern

Democratic Republic of the Congo The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...

Ecology and behavior

Rothschild's giraffes mate at any time of the year and have a gestation period of 14 to 16 months, typically giving birth to a single calf. They live in small herds, with males and females (and their calves) living separately, only mixing for mating. The Rothschild's giraffes are tolerant of other animals around them as long as they don't feel threatened. For the most part, they are very friendly, but the males are known to engage in fights for mating. Since this species can mate all year long, those battles seem to be frequent.

Threats and conservation

As of 2018, Rothschild's giraffe is classified as

near threatened A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature as that may be vulnerable to endangerment in the near future, but it does not currently qualify f ...

. Very few locations are left where Rothschild's giraffe can be seen in the wild, with notable spots being

Lake Nakuru National Park Lake Nakuru is one of the Rift Valley lakes at an elevation of above sea level. It lies to the south of Nakuru, in the rift valley of Kenya and is protected by Lake Nakuru National Park. The lake's abundance of algae used to attract a vast qu ...

in Kenya and

Murchison Falls National Park Murchison Falls National Park (MFNP) is a national park in Uganda and managed by the Ugandan Wildlife Authority. It is in north-western Uganda, spreading inland from the shores of Lake Albert, around the Victoria Nile, up to the Karuma Falls. ...

in northern Uganda. Their predators are

hyenas Hyenas, or hyaenas (from Ancient Greek , ), are feliform carnivoran mammals of the family Hyaenidae . With only four extant species (each in its own genus), it is the fifth-smallest family in the Carnivora and one of the smallest in the cla ...

, lions, crocodiles, and leopards. Two dwarf giraffes standing only tall have been spotted in Murchison Falls National Park. Scientists speculate their dwarfism may have been caused by inbreeding due to species decline. Three Rothschild's giraffes were electrocuted by low-hanging power lines in Soysambu conservancy in Nakuru, Kenya.

In captivity

Various captive breeding programmes are in place – notably at the Giraffe Centre in

Nairobi Nairobi ( ) is the capital and largest city of Kenya. The name is derived from the Maasai phrase ''Enkare Nairobi'', which translates to "place of cool waters", a reference to the Nairobi River which flows through the city. The city proper h ...

, Kenya – which aim to expand the gene pool in the wild population of Rothschild's giraffe. , more than 450 are kept in

ISIS Isis (; ''Ēse''; ; Meroitic: ''Wos'' 'a''or ''Wusa''; Phoenician: 𐤀𐤎, romanized: ʾs) was a major goddess in ancient Egyptian religion whose worship spread throughout the Greco-Roman world. Isis was first mentioned in the Old Kin ...

(international species information system) registered zoos (which does not include the Nairobi Giraffe Centre), making both it and the

the most commonly kept

s of ''Giraffa''.International Species Information System (2011).
Giraffa camelopardalis
'' Version 12 January 2011.

References

External links

* * {{Taxonbar, from=Q2222461 Rothschild's giraffe Mammals of Kenya Mammals of South Sudan Mammals of Uganda Endangered fauna of Africa Rothschild's giraffe Taxa named by Walter Rothschild Subspecies