page_title: Horn of Africa
section_title: Ecology
hierarchical_section_title: Horn of Africa / Geography / Ecology
caption_attribution_description: English: Author:en:User:Sjschen, Source: Self made, Somalian Myrrh (Commiphora myrrha)
context_page_description: The Horn of Africa: is a peninsula in Africa. It lies along the southern side of the Red Sea and extends hundreds of kilometers into the Gulf of Aden, Somali Sea and Guardafui Channel. The area is the easternmost projection of the African continent. Referred to in ancient and medieval times as the land of the Barbara and Habesha, the Horn of Africa denotes the region containing the countries of Djibouti, Eritrea, Ethiopia, and Somalia.
  It covers approximately 2 million km² and is inhabited by roughly 115 million people. Regional studies on the Horn of Africa are carried out, among others, in the fields of Ethiopian Studies as well as Somali Studies.
context_section_description: About 220 mammals are found in the Horn of Africa. Among threatened species of the region, there are several antelopes such as the beira, the dibatag, the silver dikdik and the Speke's gazelle. Other remarkable species include the Somali wild ass, the desert warthog, the hamadryas baboon, the Somali pygmy gerbil, the ammodile, and the Speke's pectinator. The Grevy's zebra is the unique wild equid of the region. There are predators such as spotted hyena, striped hyena and African leopard. The endangered painted hunting dog had populations in the Horn of Africa, but pressures from human exploitation of habitat along with warfare have reduced or extirpated this canid in this region.
  Some important bird species of the Horn are the black boubou, the golden-winged grosbeak, the Warsangli linnet, and the Djibouti spurfowl.
  The Horn of Africa holds more endemic reptiles than any other region in Africa, with over 285 species total and about 90 species which are found exclusively in the region. Among endemic reptile genera, there are Haackgreerius, Haemodracon, Ditypophis, Pachycalamus and Aeluroglena. Half of these genera are uniquely found on Socotra. Unlike reptiles, amphibians are poorly represented in the region.
  There are about 100 species of freshwater fish in the Horn of Africa, about 10 of which are endemic. Among the endemic, the cave-dwelling Somali blind barb and the Somali cavefish can be found.
  It is estimated that about 5,000 species of vascular plants are found in the Horn, about half of which are endemic. Endemism is most developed in Socotra and northern Somalia. The region has two endemic plant families: the Barbeyaceae and the Dirachmaceae. Among the other remarkable species, there are the cucumber tree found only on Socotra (Dendrosicyos socotrana), the Bankoualé palm, the yeheb nut, and the Somali cyclamen.
  Due to the Horn of Africa's semi-arid and arid climate, droughts are not uncommon. They are complicated by climate change and changes in agricultural practices. For centuries, the region's pastoral groups have observed careful rangeland management practices to mitigate the effects of drought, such as avoiding overgrazing or setting aside land only for young or ill animals. However, population growth has put pressure on limited land and led to these practices no longer being maintained. Droughts in 1983–85, 1991–92, 1998–99 and 2011 have disrupted periods of gradual growth in herd numbers, leading to a decrease of between 37% and 62% of the cattle population. Initiatives by ECHO and USAID have succeeded in reclaiming hundreds of hectares of pastureland through rangeland management, leading to the establishment of the Dikale Rangeland in 2004.
caption: Myrrh, a common resin in the Horn
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