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49-735: In the southern parts of the Ethiopian Highlands once was located the Kingdom of Kaffa , a medieval and early modern state, whence the coffee plant was exported to the Arabian Peninsula . The land of the former kingdom is mountainous with stretches of forest. The land is very fertile, capable of three harvests a year. The term coffee derives from the Arabic : قهوة ( qahwah ) and is traced to Kaffa. The Highlands are divided into northwestern and southeastern portions by

98-434: A flood basalt plateau began to form, piling layers upon layers of voluminous fissure-fed basaltic lava flows. Most of the flows were tholeiitic , save for a thin layer of alkali basalts and minor amounts of felsic (high-silica) volcanic rocks, such as rhyolite . In the waning stages of the flood basalt episode, large explosive caldera -forming eruptions also occurred. The Ethiopian Highlands were eventually bisected by

147-491: A mountain is roughly equivalent to moving 80 kilometres (50 miles or 0.75° of latitude ) towards the pole. This relationship is only approximate, however, since local factors, such as proximity to oceans , can drastically modify the climate. As the altitude increases, the main form of precipitation becomes snow and the winds increase. The temperature continues to drop until the tropopause , at 11,000 metres (36,000 ft), where it does not decrease further. This

196-440: A number of endemic wildlife species, including the endangered walia ibex ( Capra walie ) and the gelada baboon, whose thick fur allows it to thrive in the cooler climates of the mountains. These two species are only found on the northern side of the valley, while another rare endemic, the mountain nyala ( Tragelaphus buxtoni ) is restricted to the southern side, and now survives at higher altitudes than its original habitat since

245-618: A number of groups of foreigners, Ethiopian Muslim traders and members of the Ethiopian Church , also lived in the kingdom. There were a number of groups of people, "but with the status of submerged status ", who also lived in the kingdom; these included the Manjo , or hunters; the Manne , or leatherworkers; and the Qemmo , or blacksmiths. The Manjo even had their own king, appointed by

294-493: A number of other kingdoms from the Gibe region to become Kaffa Province . In Kaffa, Maria Theresa thalers (MT) and salt blocks called amoleh were used as currency (as in the rest of Ethiopia) as late as 1905, which circulated at a rate of four or five amolehs to 1 MT. The economy was based on exports of gold , civet oil, and slaves . Crops grown included coffee and cotton . However, according to Richard Pankhurst ,

343-590: Is an open woodland found at lower elevations, and dominated by species of Terminalia , Commiphora , Boswellia , and Acacia . Weyna dega is a woodland found in moister and higher locations, dominated by the conifers Afrocarpus gracilior and Juniperus procera . The lower portion of the Harenna Forest is a distinct woodland community, with an open canopy of Warburgia ugandensis , Croton macrostachyus , Syzygium guineense , and Afrocarpus gracilior , with wild coffee ( Coffea arabica ) as

392-620: Is common on the Sanetti Plateau in the Bale Mountains . The mountain nyala finds its way up to the high moorlands although it is more common at lower elevations. Wintering birds include wigeon ( Anas penelope ), shoveler ( Anas clypeata ), ruff ( Philomachus pugnax ), and greenshank ( Tringa nebularia ). Other fauna in the area also includes aardvark , eagle , Egyptian wolf, gelada , secretarybird , Nubian ibex , and marabou stork and Ethiopian endemic species such as

441-1091: Is higher than the highest summit . Although this climate classification only covers a small portion of the Earth's surface, alpine climates are widely distributed. They are present in the Himalayas , the Tibetan Plateau , Gansu , Qinghai and Mount Lebanon in Asia ; the Alps , the Urals , the Pyrenees , the Cantabrian Mountains and the Sierra Nevada in Europe ; the Andes in South America ;

490-453: Is known as the adiabatic lapse rate , which is approximately 9.8 °C per kilometer (or 5.4 °F per 1000 feet) of altitude. The presence of water in the atmosphere complicates the process of convection. Water vapor contains latent heat of vaporization . As air rises and cools, it eventually becomes saturated and cannot hold its quantity of water vapor. The water vapor condenses (forming clouds ), and releases heat, which changes

539-826: Is known as the Harar Massif. Its bounded in the west, by the fault line of the Rift Valley, in the east, by the Ogaden Lowlands and in the south, by the Elkerie and Borena Lowlands. Its highest peaks are located in the Bale Zone of Ethiopia's Oromia Region . The Bale Mountains , also designated a national park , are nearly as high as those of Semien. It is the main source of the Wabishebelle and Genalle (Juba). The range includes peaks of over 4,000 m. Among

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588-545: Is the largest of the highland ecoregions, occupying the area between 1,800 and 3,000 meters elevation. The natural vegetation was closed-canopy forest in moister areas, and grassland, bushland, and thicket in drier areas. However these hillsides have good fertile soil and are heavily populated, largely by farming communities, so most of the region has been converted to agriculture with a few areas of natural vegetation remaining. Urban areas in this ecoregion include: Ethiopia's capital city and Africa's fourth largest city Addis Ababa ,

637-444: Is the process of convection . Convection comes to equilibrium when a parcel of air at a given altitude has the same density as its surroundings. Air is a poor conductor of heat, so a parcel of air will rise and fall without exchanging heat. This is known as an adiabatic process , which has a characteristic pressure-temperature curve. As the pressure gets lower, the temperature decreases. The rate of decrease of temperature with elevation

686-604: The Amhara Region capital Bahir Dar with its island monasteries on Lake Tana , the old walled city of Harar , the spa town of Ambo , Asella in the Arsi Zone , the trekking center of Dodola , the lakeside Bishoftu , the largest city in the southwest Jimma , the market town of Nekemte , and the capital of the Tigray Region , Mek'ele . Awash National Park is a site for birdwatching. Remaining woodland in

735-636: The East African mountains further south. The evergreen broadleaved forest of the Semien Mountains , between 2,300 and 2,700 meters elevation, is dominated by Syzygium guineense , Arundinarial, Juniperus procera , and Olea africana . As the lower slopes of the mountains are so heavily populated, even the high altitude moorlands are affected by human interference, such as the grazing of livestock and even farming. There are two protected areas of high moorland: Bale Mountains National Park in

784-566: The Ethiopia-Yemen Continental Flood Basalts . Contrary to what has been suggested for much of Africa, planation surfaces in northern Ethiopia do not appear to be pediplains nor etchplains . Spatial distribution of temperature in Ethiopia is determined primarily by altitude and latitude. Altitude is the main factor that determines the spatial distribution of temperature in Ethiopia. Ethiopia lies within

833-819: The Gibe kingdoms; to the east the territory of the Konta and Kullo peoples lay between Kaffa and the Omo River ; to the south numerous subgroups of the Gimira people, and to the west lay the Majangir people. The native language, also known as Kaffa , is one of the Omotic group of languages. Kaffa was divided into four sub-groups, who spoke a common language Kefficho , one of the Gonga/Kefoid group of Omotic languages ;

882-581: The Holdridge life zone system, there are two mountain climates which prevent tree growth : a) the alpine climate, which occurs when the mean biotemperature of a location is between 1.5 and 3 °C (34.7 and 37.4 °F). The alpine climate in Holdridge system is roughly equivalent to the warmest tundra climates (ET) in the Köppen system. b) the alvar climate, the coldest mountain climate since

931-712: The Main Ethiopian Rift , which contains a number of salt lakes. The northwestern portion, known as the Abyssinian Massif, includes the Semien Mountains , part of which has been designated the Simien Mountains National Park . Its summit, Ras Dashen (4,550 m), is the highest peak in Ethiopia. Lake Tana , the source of the Blue Nile , also lies in the northwestern portion of the Ethiopian Highlands. The southeastern portion

980-531: The Mediterranean climate that they knew. The Ethiopian Highlands share a similar flora and fauna to other mountainous regions of Africa; this distinctive flora and fauna is known as Afromontane , but from the time of the last ice age the region has been populated with some Eurasian ( palearctic ) flora. The habitats are somewhat different on either side of the Great Rift Valley which splits

1029-1001: The Sierra Nevada , the Cascade Range , the Rocky Mountains , the northern Appalachian Mountains ( Adirondacks and White Mountains ), and the Trans-Mexican Volcanic Belt in North America ; the Southern Alps in New Zealand ; the Snowy Mountains in Australia ; high elevations in the Atlas Mountains , Ethiopian Highlands , and Eastern Highlands of Africa ; the central parts of Borneo and New Guinea ; and

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1078-516: The equator , this has resulted in giving this country an unexpectedly temperate climate . Further, these mountains catch the precipitation of the monsoon winds of the Indian Ocean , resulting in a rainy season that lasts from June until mid-September. These heavy rains cause the Nile to flood in the summer , a phenomenon that puzzled the ancient Greeks , as the summer is the driest season in

1127-523: The shrew ( Crocidura harenna ), the narrow-footed woodland mouse ( Grammomys minnae ), and Menelik's bushbuck ( Tragelaphus scriptus meneliki ), which is a subspecies with long, dark fur. 12°32′00″N 41°23′8″E  /  12.53333°N 41.38556°E  / 12.53333; 41.38556 Kingdom of Kaffa The Kingdom of Kaffa was a kingdom located in what is now Ethiopia from 1390 to 1897, with its first capital at Bonga . The Gojeb River formed its northern border, beyond which lay

1176-461: The tree line , where trees fail to grow due to cold. This climate is also referred to as a mountain climate or highland climate . There are multiple definitions of alpine climate. In the Köppen climate classification , the alpine and mountain climates are part of group E , along with the polar climate , where no month has a mean temperature higher than 10 °C (50 °F). According to

1225-467: The 19th century when Christian practices were reintroduced. Beginning with Gali Ginocho (1675–1710), the kings of Kaffa began to expand the borders of their kingdom, annexing the neighboring small Gimira states of She, Benesho and Majango. The neighboring state of the Welayta came under their control in the reign of Tato Shagi Sherocho (1775–1795), who extended the boundaries of his kingdom as far as

1274-452: The Armies of Menelik II, emperor of Ethiopia , identifying a number of practices in common with the more familiar Amhara people . After the annexation into Ethiopia, the inhabitants suffered greatly due to the slave-raids organized by Abba Jifar II , and the region almost became uninhabited. During the reorganization of the provinces in 1942, the former kingdom was enlarged by the addition of

1323-630: The Earth's mantle uplifted a broad dome of the ancient rocks of the Arabian-Nubian Shield . The opening of the Great Rift Valley split the dome of the Ethiopian Highlands into three parts; the mountains of the southern Arabian Peninsula are geologically part of the ancient Ethiopian Highlands, separated by the rifting which created the Red Sea and Gulf of Aden and separated Africa from Arabia. Around 30 million years ago,

1372-584: The Great Rift Valley as the African continental crust pulled apart. This rifting gave rise to large alkaline basalt shield volcanoes beginning about 30–31 million years ago. The northern Ethiopian Highlands contain four discernible planation surfaces , the oldest one being formed not later than in the Ordovician Period. The youngest surface formed in the Cenozoic , being partly covered by

1421-532: The King of Kaffa, and were given the duties of guarding the royal compounds and the gates of the kingdom. The kingdom was overrun and conquered in 1897, and was eventually annexed by Ethiopia. The land where this former kingdom lay is in the southern parts of the Ethiopian Highlands with stretches of forest. The mountainous land is very fertile, capable of three harvests a year. The Kingdom of Kaffa

1470-576: The Omo to the southeast and almost to the confluence of the Omo and the Denchya to the south. It was during the reign of King Hoti Gaocho (1798–1821), that the territory of the Kaffa kings reached its maximum. According to Orent, the traditions of the Kaffa people relate that he ruled far and wide, conquering wherever he went, even as far afield as Wolleta and Kambaata. "To this day, some people still talk about

1519-431: The amount of coffee exported was never large: he cites an estimate for its production in the 1880s at 50,000 to 60,000 kilograms a year. Livestock was raised, and honeybees kept in barrels (called gendo ) which were hung in trees. 7°16′00″N 36°14′00″E  /  7.2667°N 36.2333°E  / 7.2667; 36.2333 Alpine climate Alpine climate is the typical climate for elevations above

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1568-419: The biotemperature is between 0 °C and 1.5 °C (biotemperature can never be below 0 °C). It corresponds more or less to the coldest tundra climates and to the ice cap climates (EF) as well. Holdrige reasoned that plants net primary productivity ceases with plants becoming dormant at temperatures below 0 °C (32 °F) and above 30 °C (86 °F). Therefore, he defined biotemperature as

1617-406: The combined armies of Welde Giyorgis Aboye , Ras Damisse, and King Abba Jifar II of Jimma , until he was captured 11 September 1897, and was first sent to Ankober , then to Addis Ababa . Kaffa was then held as a fief by Wolde Giyogis until 1914. During his visit to Kaffa in 1897, Alexander Bulatovich had the opportunity to study the culture of the inhabitants, describing them in his book With

1666-455: The dominant understory shrub. The southwesterly winds bring rainfall from May to October with moisture from the Red Sea coming in from the east year round. Fauna at these elevations includes the endemic Harwood's spurfowl ( Pternistis harwoodi ), Prince Ruspoli's turaco ( Tauraco ruspolii ) and yellow-throated seedeater ( Serinus flavigula ) The Ethiopian montane grasslands and woodlands

1715-474: The drier areas contains much endemic flora and primarily consists of the conifers Afrocarpus falcatus and Juniperus procera , often with the broadleaved Hagenia abyssinica . In the Harenna Forest , pockets of moist, closed-canopy forest with Aningeria and Olea are draped with lianas and epiphytes , while above 2400 meters, a shrubby zone is home to Hagenia , Astropanax , and giant lobelias ( Lobelia gibberroa ), species which can be found on

1764-500: The finch Ankober serin ( Serinus ankoberensis ), white-winged flufftail ( Sarothrura ayresi ), and blue-winged goose . The farmland is home to many butterflies, especially Papilio , Charaxinae , Pieridae and Lycaenidae . There are several endemic animal species, one of which, the Ethiopian wolf ( Canis simensis ), is critically endangered. Other endemics include the big-headed mole-rat ( Tachyoryctes macrocephalus ) which

1813-461: The former are Mount Tullu Demtu (4,337 m), which is the second-highest major independent mountain in Ethiopia, and Mount Batu (4,307 m). Most of the country's major cities are located at elevations of around 2,000–2,500 m (6,600–8,200 ft) above sea level, including Addis Ababa , Ethiopia's capital and largest city, and historic capitals such as Gondar and Axum . The Ethiopian Highlands began to rise 75 million years ago, as magma from

1862-510: The high Ethiopian montane moorlands , the largest Afroalpine region in Africa. The montane moorlands lie above the tree line, and consist of grassland and moorland with abundant herbs and some shrubs that have adapted to the high mountain conditions. In Ethiopia, Afro-Alpine and Sub-Afro-Alpine vegetations are found in the Highlands of Semein and Highlands of Bale. These slopes are home to

1911-823: The highlands. At lower elevations, the highlands are surrounded by tropical savannas and grasslands , including the Sahelian Acacia savanna to the northwest and the East Sudanian savanna to the west. The highlands themselves are divided into three distinct ecoregions , distinguished by elevation. The Ethiopian montane forests lie between 1,100 and 1,800 meters elevation, above the lowland grasslands and savannas, and extend to areas of similar habitat in Eritrea, Sudan, and Djibouti. This woodland belt has several natural plant communities, but has mostly been heavily grazed and converted to agricultural use now. Kolla ,

1960-484: The kingdom to officially accept Christianity as its state religion. As a result, the church of St. George was dedicated at Baha ; the building preserved a tabot bearing the name of Emperor Sarsa Dengel. Over the following centuries the influence of the Abyssinian king grew weak, and Christianity more or less disappeared, although the church of St. George was used as a "male house of ritual of George" until late in

2009-440: The lapse rate from the dry adiabatic lapse rate to the moist adiabatic lapse rate (5.5 °C per kilometre or 3 °F per 1000 feet). The actual lapse rate, called the environmental lapse rate , is not constant (it can fluctuate throughout the day or seasonally and also regionally), but a normal lapse rate is 5.5 °C per 1,000 m (3.57 °F per 1,000 ft). Therefore, moving up 100 metres (330 ft) on

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2058-585: The lower slopes are heavily farmed. More widespread mammals found here include the mantled guereza ( Colobus guereza ), which is also threatened as its habitat disappears as does that of many other mammals of the highlands such as olive baboon ( Papio anubis ), Egyptian wolf ( Canis aureus ), leopard ( Panthera pardus ), lion ( Panthera leo ), spotted hyena ( Crocuta crocuta ), caracal ( Caracal caracal ), serval ( Leptailurus serval ), common duiker ( Sylvicapra grimmia ), and giant forest hog ( Hylochoerus meinertzhageni ). Birds include Rueppell's chat ,

2107-421: The mean of all temperatures but with all temperatures below freezing and above 30 °C adjusted to 0 °C; that is, the sum of temperatures not adjusted is divided by the number of all temperatures (including both adjusted and non-adjusted ones). The variability of the alpine climate throughout the year depends on the latitude of the location. For tropical oceanic locations, such as the summit of Mauna Loa ,

2156-399: The southern highlands, accessible from Dinsho ; and Simien Mountains National Park , accessible from Gondar , which includes Ras Dashen. However, even these parks are losing habitat to livestock grazing, while the lower elevation parks ( Harar Wildlife Sanctuary , Awash National Park , Omo National Park , and Nechisar National Park ) are even less secure. Above 3,000 meters elevation lie

2205-403: The surface. If radiation were the only way to transfer heat from the ground to space, the greenhouse effect of gases in the atmosphere would keep the ground at roughly 333 K (60 °C; 140 °F), and the temperature would decay exponentially with height. However, when air is hot, it tends to expand, which lowers its density. Thus, hot air tends to rise and transfer heat upward. This

2254-467: The temperature is roughly constant throughout the year. For mid-latitude locations, such as Mount Washington in New Hampshire , the temperature varies seasonally, but never gets very warm. The temperature profile of the atmosphere is a result of an interaction between radiation and convection . Sunlight in the visible spectrum hits the ground and heats it. The ground then heats the air at

2303-673: The time that their ancestors defeated all their enemies and sat at the foot of a famous tree in Wolliso and decided not to go farther into Shewa province." concludes Orent. Around the 18th century the kingdom was invaded by the Mecha Oromos. But due to its difficult terrain, Kaffa was able to repel the invasion. However all territories north of the Gojeb river was lost to the Oromos. The last Kaffa king, Gaki Sherocho , resisted for months

2352-475: The tropics, a zone of maximum insolation, where every place has overhead sun twice a year. However, considerable portions of Ethiopia are highland areas, and their altitudes give them non-tropical temperatures. Ethiopia's tropical climate occur in lowlands at the country's peripheries. The predominant climate of the Ethiopian Highlands is the Alpine climate . Because the highlands elevate Ethiopia, located close to

2401-514: Was founded c.1390 by Minjo, who according to oral tradition ousted the Mato dynasty of 32 kings. However, his informants told Amnon Orent, "no one remembers the name of a single one." The first capital Bonga was either founded or captured by Bon-noghe; it was later replaced by Anderaccha , but Bonga retained its importance. During the 16th century, the Emperor of Abyssinia Sarsa Dengel convinced

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