The northern giraffe (Giraffa camelopardalis), also known as three-horned giraffe,[2] is the type species of giraffe, G. camelopardalis, and is native to North Africa, although alternative taxonomic hypotheses have proposed the northern giraffe as a separate species.[3][1]
Once abundant throughout Africa since the 19th century, Northern giraffes ranged from Senegal, Mali and Nigeria from West Africa to up north in Egypt. [4] The similar West African giraffes lived in Algeria and Morocco in ancient periods until their extinctions due to the Saharandry climate.[5][6][4]
The current IUCN taxonomic scheme lists one species of giraffe with the name G. camelopardalis and nine subspecies.[1][7] A 2021 whole genome sequencing study suggests the northern giraffe as a separate species, and postulates the existence of three distinct subspecies,[8] and more recently, one extinct subspecies.[9][10][11]
It has sharply defined chestnut-coloured spots surrounded by mostly white lines, while undersides lack spotting. Includes the Rothschild's giraffe ecotype
Eastern South Sudan and southwestern Ethiopia, in addition to Kenya and Uganda.
It had dark brown patches, with a clear contour. Body was almost uniform in size.
Extinct; formerly parts of Senegal, The Gambia, Mali, and Mauritiania up until the 1970s.
Description
Often mistaken with the Southern Giraffes, Northern giraffes can be differentiated by the shape and size of the two distinctive horn-like protuberances known as ossicones on their foreheads; they are longer and larger than those of southern giraffes. Bull Northern giraffes have a third cylindrical ossicone in the center of the head just above the eyes, which is from 3 to 5 inches long.[2]
The earliest ranges of the Northern giraffes were in Chad during the late Pliocene. Once abundant in North Africa, they lived in Algeria from the early Pleistocene during the Quaternary period. They lived in Morocco, Libya and Egypt until their extinction there around AD 600, as the drying climate of the Sahara made conditions impossible for giraffes. Giraffe bones and fossils have been found across these countries.[5][6]
References
^ abcdefMuller, Z.; Bercovitch, F.; Brand, R.; Brown, D.; Brown, M.; Bolger, D.; Carter, K.; Deacon, F.; Doherty, J.B.; Fennessy, J.; Fennessy, S.; Hussein, A.A.; Lee, D.; Marais, A.; Strauss, M.; Tutchings, A.; Wube, T. (2018) [amended version of 2016 assessment]. "Giraffa camelopardalis". IUCN Red List of Threatened Species. 2018: e.T9194A136266699. doi:10.2305/IUCN.UK.2016-3.RLTS.T9194A136266699.en. Retrieved 12 November 2021.
^ abLinnaeus, C. (1758). The Nubian or Three-horned giraffe (Giraffa camelopardalis). Existing Forms of Giraffe (February 16, 1897): 14.
^Petzold, Alice; Hassanin, Alexandre (2020-02-13). "A comparative approach for species delimitation based on multiple methods of multi-locus DNA sequence analysis: A case study of the genus Giraffa (Mammalia, Cetartiodactyla)". PLOS ONE. 15 (2): e0217956. Bibcode:2020PLoSO..1517956P. doi:10.1371/journal.pone.0217956. PMC 7018015. PMID 32053589.
^ abHassanin, Alexandre; Ropiquet, Anne; Gourmand, Anne-Laure; Chardonnet, Bertrand; Rigoulet, Jacques (2007). "Mitochondrial DNA variability in Giraffa camelopardalis: consequences for taxonomy, phylogeography and conservation of giraffes in West and central Africa". Comptes Rendus Biologies. 330 (3): 265–274. doi:10.1016/j.crvi.2007.02.008. PMID 17434121.
^ abAnne Innis Dagg (23 January 2014). Giraffe: Biology, Behaviour and Conservation. Cambridge University Press. p. 5. ISBN 9781107729445. Retrieved 30 March 2017.
^ abFred Wendorf; Romuald Schild (11 November 2013). Holocene Settlement of the Egyptian Sahara: Volume 1: The Archaeology of Nabta Playa. Springer Science & Business Media. p. 622. ISBN 9781461506539. Retrieved 30 March 2017.
^Bercovitch, Fred B.; Berry, Philip S. M.; Dagg, Anne; Deacon, Francois; Doherty, John B.; Lee, Derek E.; Mineur, Frédéric; Muller, Zoe; Ogden, Rob (2017-02-20). "How many species of giraffe are there?". Current Biology. 27 (4): R136–R137. doi:10.1016/j.cub.2016.12.039. hdl:20.500.11820/4c828f1a-f644-4268-9197-eb50244a1d75. PMID 28222287.
^Coimbra, Raphael T.F.; Winter, Sven; Kumar, Vikas; Koepfli, Klaus-Peter; Gooley, Rebecca M.; Dobrynin, Pavel; Fennessy, Julian; Janke, Axel (2021). "Whole-genome analysis of giraffe supports four distinct species". Current Biology. 31 (13): 2929–2938.e5. doi:10.1016/j.cub.2021.04.033. PMID 33957077.
^Petzold, Alice; Magnant, Anne-Sophie; Edderai, David; Chardonnet, Bertrand; Rigoulet, Jacques; Saint-Jalme, Michel; Hassanin, Alexandre (2020-08-18). "First insights into past biodiversity of giraffes based on mitochondrial sequences from museum specimens". European Journal of Taxonomy (703). doi:10.5852/ejt.2020.703. ISSN 2118-9773.
^"Giraffa camelopardalis senegalensis (Senegalese giraffe) - The Recently Extinct Plants and Animals Database". recentlyextinctspecies.com. Retrieved 2023-06-03.
External links
Northern giraffe at Wikipedia's sister projects
Definitions from Wiktionary
Media from Commons
Texts from Wikisource
Taxa from Wikispecies
ARKive – images and movies of the giraffe (Giraffa camelopardalis).