118-475: Daza may refer to Toubou people in northern Africa Daza language Dazawa language also known as Daza, spoken in Nigeria Daza (surname) Daza (cicada) , a genus in subfamily Cicadettinae Maximinus Daza , Roman emperor from 310 to 313 Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with
236-426: A consequence, the weather tends to be sunny, dry and stable with a minimal chance of rainfall. Subsiding, diverging, dry air masses associated with subtropical high-pressure systems are extremely unfavorable for the development of convectional showers. The subtropical ridge is the predominant factor that explains the hot desert climate ( Köppen climate classification BWh ) of this vast region. The descending airflow
354-581: A euphemistic expression. After the abolition of slavery in 1953, the chief Kellei Chahami admitted the descendants of former captives to the canton, where they were recognized as full members and can move around freely and in this way, the last fraction of the Kamaya canton thus was established. Not only the captives were attached to the Kamaya canton, but along with all foreigners who resided in Faya, including Fezzanais (Libyan refugees who fled Italian brutality in 1929 before
472-515: A healthy adult. The Saharan silver ant is unique in that due to the extreme high temperatures of their habitat, and the threat of predators, the ants are active outside their nest for only about ten minutes per day. Dromedary camels and goats are the domesticated animals most commonly found in the Sahara. Because of its qualities of endurance and speed, the dromedary is the favourite animal used by nomads . Human activities are more likely to affect
590-711: A rate of 5%. The study also found that 20–30% of Toubou autosomal DNA was Eurasian in origin, and their African ancestral component was best represented by Laal-speaking populations. The most likely source of this Eurasian DNA, according to the analysis, was central European Neolithic farmers ( Linearbandkeramik culture ). Other ethnic groups in the Chad , such as the Sara people and the Laal speakers had considerably lower Eurasian admixture, at only 0.3–2% (Sara) and 1.25–4.5% (Laal). In 2019, B Lorente-Galdos using whole genome analysis, found that in
708-501: A semi-nomadic pastoralist lifestyle. Those who prefer a settled life typically live in palm-thatched, rectangular or cylindrical mud houses. The Toubou are patrilineal, with an elder male heading the lineage. The second order of Toubou kinship is to the clan . According to Jean Chapelle, a colonial officer of history specializing in Chadian ethnic groups (although his book in Borkou has caused
826-411: A significant degree of wrongdoing), the clan system developed out of necessity. Nomadic life means being scattered throughout a region; therefore, belonging to a clan means that the individual is likely to find hospitable clan people in most settlements or camps of any size. A second factor is the maintenance of ties with the maternal clan. Although the maternal clan does not occupy the central place of
944-558: A summer rainy season that extends across Africa from east to west. The southern limit of the Sahara is indicated botanically by the southern limit of Cornulaca monacantha (a drought-tolerant member of the Chenopodiaceae ), or northern limit of Cenchrus biflorus , a grass typical of the Sahel. According to climatic criteria, the southern limit of the Sahara corresponds to the 150 mm (5.9 in) isohyet of annual precipitation (this
1062-542: A surface feature of Earth, with near-current technology. The Sahara is mainly rocky hamada (stone plateaus); ergs (sand seas – large areas covered with sand dunes ) form only a minor part, contrary to common misconception , but many of the sand dunes are over 180 metres (590 ft) high. Wind or rare rainfall shape the desert features: sand dunes, dune fields, sand seas, stone plateaus, gravel plains ( reg ), dry valleys ( wadi ), dry lakes ( oued ), and salt flats ( shatt or chott ). Unusual landforms include
1180-693: A symbol of opposition to the Chadian government. This role enhanced the position of the Derde from the Tumagra tribe of Toubou. After 1967 the derde hoped to rally the Toubou to the National Liberation Front of Chad (FROLINAT). Moral authority became military authority shortly thereafter when his son, Goukouni Oueddei , became one of the leaders of the Second Liberation Army of FROLINAT. Goukouni
1298-399: Is a derde (spiritual head) who is recognized as the clan judge, and arbitrates conflict and levies sanctions. The Toubou people, states Jean Chapelle, have been socially stratified with an embedded caste system. The three strata have consisted of the freemen with a right to own property, the artisanal castes and the slaves. The endogamous caste of Azza (or Aza ) among Toubou have
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#17328515276991416-639: Is a long-term average, since precipitation varies annually). Important cities located in the Sahara include Nouakchott , the capital of Mauritania; Tamanrasset , Ouargla , Béchar , Hassi Messaoud , Ghardaïa , and El Oued in Algeria; Timbuktu in Mali; Agadez in Niger; Ghat in Libya; and Faya-Largeau in Chad. The Sahara is the world's largest hot desert . It is located in
1534-672: Is a mispronunciation of Kamaya, and the Teda are grudgingly attempting to sabotage the Toubou Gorane Kamaya clans' federation reputation since the Kamaya's history was fabricated by the French colonists and Teda took advantage of the situation by misleading their freed slave descendants and the general public. The linguistic analysis reveals that the term "Kamadja" does not exist in either the Dazaga or Tedaga languages. The tone terms, namely "Kamadja" for
1652-422: Is a north African gazelle that can also go for a long time without water. Other notable gazelles include the rhim gazelle and dama gazelle . The Saharan cheetah ( northwest African cheetah ) lives in Algeria, Togo , Niger, Mali, Benin , and Burkina Faso . There remain fewer than 250 mature cheetahs, which are very cautious, fleeing any human presence. The cheetah avoids the sun from April to October, seeking
1770-609: Is a prehistoric industry, or domain, that existed between 10,000 and 8,000 years ago in the Sahara, during the Neolithic Subpluvial . Human remains from this culture were found in 2000 at a site known as Gobero , located in Niger in the Ténéré Desert . The site is known as the largest and earliest grave of Stone Age people in the Sahara. The Kiffians were skilled hunters . Bones of many large savannah animals that were discovered in
1888-460: Is associated with high rates of wind-blown mineral dust, and these dust levels are found as expected in marine cores from the north tropical Atlantic. But around 12,500 BCE the amount of dust in the cores in the Bølling / Allerød phase suddenly plummets and shows a period of much wetter conditions in the Sahara, indicating a Dansgaard-Oeschger (DO) event (a sudden warming followed by a slower cooling of
2006-774: Is derived from Arabic : صَحَارَى , romanized : ṣaḥārā /sˤaħaːraː/ , a broken plural form of ṣaḥrā' ( صَحْرَاء /sˤaħraːʔ/ ), meaning "desert". The desert covers much of North Africa , excluding the fertile region on the Mediterranean Sea coast, the Atlas Mountains of the Maghreb , and the Nile Valley in Egypt and the Sudan . It stretches from the Red Sea in
2124-403: Is estimated to include five hundred species of plants, which is extremely low considering the huge extent of the area. Plants such as acacia trees, palms, succulents, spiny shrubs, and grasses have adapted to the arid conditions, by growing lower to avoid water loss by strong winds, by storing water in their thick stems to use it in dry periods, by having long roots that travel horizontally to reach
2242-409: Is losing its relevance of the Kamaya ethnic group due to its lack of self-identification and it is important to note that this term was introduced and propagated by Europeans, and there is a belief that it has inaccurately misquoted, misconstrued, and distorted the sound of "y" to "dj" or "j" in the names of various clans, tribes, communities, rural areas, organisms, and numerous other entities throughout
2360-422: Is only somewhat prevalent in Toubou society. The ownership of land, animals, and resources takes several forms. Within an oasis or settled zone belonging to a particular clan, land, trees (usually date palms), and nearby wells may have different owners. Each family's rights to the use of particular plots of land are recognized by other clan members. Families also may have privileged access to certain wells and
2478-514: Is settled directly between the families of the victim and the murderer. Toubou honour requires that someone from the victim's family try to kill the murderer or a relative; such efforts eventually end with negotiations to settle the matter. Reconciliation follows the payment of the Goroga (Islamic tenet of Diyya ), or blood money . Among the Tumagra clan of the Teda people in the Tibesti region, there
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#17328515276992596-643: Is the strongest and the most effective over the eastern part of the Great Desert, in the Libyan Desert: this is the sunniest, driest and the most nearly "rainless" place on the planet, rivaling the Atacama Desert , lying in Chile and Peru . The rainfall inhibition and the dissipation of cloud cover are most accentuated over the eastern section of the Sahara rather than the western. The prevailing air mass lying above
2714-422: Is very unreliable and erratic in the Sahara as it may vary considerably year by year. In full contrast to the negligible annual rainfall amounts, the annual rates of potential evaporation are extraordinarily high, roughly ranging from 2,500 millimetres (100 in) per year to more than 6,000 millimetres (240 in) per year in the whole desert. Nowhere else on Earth has air been found as dry and evaporative as in
2832-535: The Adrar of Mauritania and a value of 75 °C (167 °F) has been measured in Borkou , northern Chad. Due to lack of cloud cover and very low humidity, the desert usually has high diurnal temperature variations between days and nights. However, it is a myth that the nights are especially cold after extremely hot days in the Sahara. On average, nighttime temperatures tend to be 13–20 °C (23–36 °F) cooler than in
2950-481: The Algerian Desert called Bou Bernous , at an elevation of 378 metres (1,240 ft) above sea level, and only Death Valley, California rivals it. Other hot spots in Algeria such as Adrar , Timimoun , In Salah , Ouallene , Aoulef , Reggane with an elevation between 200 and 400 metres (660 and 1,310 ft) above sea level get slightly lower summer average highs, around 46 °C (114.8 °F) during
3068-595: The Bahr el Gazel in the south and also the Tibesti mountains and the neighbouring countries. There is a diaspora community of several thousand Daza living in Omdurman , Sudan and a couple of thousand working in Jeddah , Saudi Arabia . The ancient history of the Toubou people is unclear. They may be related to the 'Ethiopians' mentioned by Herodotus in 430 BCE, as a people being hunted by
3186-624: The Garamantes , but this is speculative, as Jean Chapelle argues. Furthermore, scholars such as Laurence P. Kirwan stress that the Garamantes and the Toubou seem to occupy the same lands. Which spans from the Fezzan (Phazania) as far south as Nubia. Further evidence is given by Harold MacMichael states that the Bayuda desert was still known as the desert of Goran; a name as MacMichael has shown, connected with
3304-742: The Late Pleistocene Iberomaurusians , early Holocene Capsians , and mid-Holocene Mechta groups, whereas the Tenerian crania are more like those of Mediterranean groups. Graves show that the Tenerians observed spiritual traditions, as they were buried with artifacts such as jewelry made of hippo tusks and clay pots. The most interesting find is a triple burial, dated to 5300 years ago, of an adult female and two children, estimated through their teeth as being five and eight years old, hugging each other. Pollen residue indicates they were buried on
3422-674: The Richat Structure in Mauritania. Several deeply dissected mountains, many volcanic, rise from the desert, including the Aïr Mountains , Ahaggar Mountains , Saharan Atlas , Tibesti Mountains , Adrar des Iforas , and the Red Sea Hills . The highest peak in the Sahara is Emi Koussi , a shield volcano in the Tibesti range of northern Chad. The central Sahara is hyperarid , with sparse vegetation. The northern and southern reaches of
3540-619: The Saharawi , and 76.0% for the Libyan. North African samples were closer to Eurasian populations than to Sub-Saharan populations, implying that the Sahara Desert might have represented a major barrier within Africa. In contrast, the three Khoisan groups presented significantly small proportions of a Eurasian component (3.83–4.11%). Toubou life centers on raising and herding their livestock , or on farming
3658-603: The Tibesti Mountains, sending a military garrison and administrators to Bardaï , the capital of Tibesti Sub-prefecture. Within a year, abuses of authority had roused considerable opposition among the Toubou. The derde , Oueddei Kichidemi , recognized but little respected up to that time, protested the excesses, went into exile in Libya , and, with the support of Toubou students at the Islamic University of Bayda , became
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3776-468: The Tibesti Mountains that inhabit the central Sahara in northern Chad , southern Libya , northeastern Niger , and northwestern Sudan . They live either as herders and nomads or as farmers near oases . Their society is clan-based, with each clan having certain oases, pastures and wells. The Toubou are generally divided into two closely related groups: the Teda (or Tuda, Téda, Toda, Tira) and
3894-833: The Tibesti Mountains , the Aïr Mountains , the Ténéré desert, and the Libyan Desert . For several hundred thousand years, the Sahara has alternated between desert and savanna grassland in a 20,000-year cycle caused by the precession of Earth's axis (about 26,000 years) as it rotates around the Sun, which changes the location of the North African monsoon . The Sahara covers large parts of Algeria , Chad , Egypt , Libya , Mali , Mauritania , Niger , Western Sahara and Sudan , and parts of southern Morocco and Tunisia . It covers 9 million square kilometres (3,500,000 sq mi), 31% of
4012-688: The Toubou Front for the Salvation of Libya (TFSL) staged an uprising in November 2008 which lasted for five days and claimed 33 lives before being crushed by government security forces. Despite resistance and public condemnation, the Gaddafi regime continued its persecution of the Toubou minority in Libya. Beginning in November 2009, the government began a program of forced eviction and demolition of Toubou homes, rendering many Toubou homeless. Several dozens who protested
4130-529: The artisanal occupations, such as metal work, leather work, salt mining, well digging, dates farming, pottery and tailoring, and they have traditionally been despised and segregated by other strata of the Toubou, much like the Hadahid caste in southeastern Chad among the Zaghawa people . According to Paul Lovejoy – a professor of African History, the 19th century records show that these segregated Toubou castes followed
4248-474: The horse latitudes under the subtropical ridge , a significant belt of semi-permanent subtropical warm-core high pressure where the air from the upper troposphere usually descends, warming and drying the lower troposphere and preventing cloud formation. The permanent absence of clouds allows unhindered light and thermal radiation. The stability of the atmosphere above the desert prevents any convective overturning, thus making rainfall virtually non-existent. As
4366-522: The "black nomads of the Sahara". They are distributed across a large area in the central Sahara, as well as the north-central Sahel . They are particularly found north of the Tibesti mountains , which in Old Tebu means "Rocky Mountains". The first syllable "Tu" refers to the Tibesti mountains, as known by the natives (Tuda), and the second syllable "bo" refers to blood in the Kanembou language; thus, people from
4484-499: The African continent. If all areas with a mean annual precipitation of less than 250 mm (9.8 in) were included, the Sahara would be 11 million square kilometres (4,200,000 sq mi). It is one of three distinct physiographic provinces of the African massive physiographic division . The Sahara is so large and bright that, in theory, it could be detected from other stars as
4602-417: The African humid period. At its largest extent, sometime before 5000 BCE, Lake Mega-Chad was the largest of four Saharan paleolakes, and is estimated to have covered an area of 350,000 km . The Sahara pump theory describes this cycle. During periods of a wet or " Green Sahara ", the Sahara becomes a savanna grassland and various flora and fauna become more common. Following inter-pluvial arid periods,
4720-636: The Daza (or Dazzaga, Dazagara, Dazagada). They are believed to share a common origin and speak the Tebu languages , which are from the Saharan branch of the Nilo-Saharan language family. Tebu is divided further into two closely related languages, called Tedaga (Téda Toubou) and Dazaga (Daza Toubou). Of the two groups, the Daza, found to the south of the Teda, are more numerous. The Toubou people are also referred to as
4838-434: The Daza and Teda regions into corresponding territorial units called cantons and appointing chiefs to administer them and in 1936, the French created cantons, and appointed al-haj Kelleï Chahami from the Kamaya canton in Borkou region's Faya city the first highest official chief who executed great noble missions. Toubou legal customs are generally based on Islamic law, that allows restitution and revenge. Murder, for example,
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4956-571: The Daza, or Gouran , include the Alala, Altafa, Anakaza , Ankorda, Ayya, Sharara, Sharfada, Shuna, Daza, Djagada, Dogorda, Donza, Gadwa, Gaeda, Howda, Kamaya, Kamsoulla, Kara, Ketcherda, Kokorda, Maghya, Medelea, Mourdiya, Nara, Salma, Tchiroua, Tchoraga, Wandala, Wandja, Warba, Warda, Yira and many more. The Daza cover the northern regions of Chad such as the Bourkou , the Ennedi Plateau , the northern Kanem,
5074-633: The Dazagara. The majority of Teda speak and understand Dazaga, however, the Dazagada do not always clearly grasp Tedaga. Dazaga is the most commonly used language in BET by all its inhabitants. The lowest social strata were the slaves ( Agara ). Slaves entered the Toubou Teda and Daza societies from raids and warfare on other ethnic groups in lands to their south. All slaves were the property of their masters, their caste
5192-422: The Faya palm grove oasis valley, since the suffix "dé" is appended to the solitary form of "yé". Therefore, the designation "Kamaya" refers to the natives of the valley that is situated in the palm grove of Faya oasis. In Dazaga, the community is called "Kama-yanga" which means the Kamaya canton and together with the suffix "ga" implies the dialect spoken by the Dazagada. In the linguistic context under consideration,
5310-412: The Great Desert the hottest large region in the world, and the hottest place on Earth during summer in some spots. The average high temperature exceeds 38 to 40 °C (100.4 to 104.0 °F) during the hottest month nearly everywhere in the desert except at very high altitudes. The world's highest officially recorded average daily high temperature was 47 °C (116.6 °F) in a remote desert town in
5428-474: The Intertropical Convergence Zone from the south and the annual average rainfall ranges from 100 millimetres (4 in) to 250 millimetres (10 in). For example, Timbuktu, Mali and Agadez , Niger are found in this zone. The vast central hyper-arid core of the desert is virtually never affected by northerly or southerly atmospheric disturbances and permanently remains under the influence of
5546-483: The Italian colonialists' progression into southern Libya, the Fezzan region), Ouadaens from the Chad's Waddai region, prostitutes, blacksmiths etc, were also attached to the Kamaya canton. All of these individuals' concerns were conveyed to the colonizers via the Kamaya canton. The descendants of freed slaves who located in the Tibesti region for many years approach their former masters inquiring about their past. In response,
5664-513: The Kiffian culture do not exist after 8,000 years ago, as the Sahara went through a dry period for the next thousand years. After this time, the Tenerian culture colonized the area. Gobero was discovered in 2000 during an archaeological expedition led by Paul Sereno , which sought dinosaur remains. Two distinct prehistoric cultures were discovered at the site: the early Holocene Kiffian culture, and
5782-486: The Kura'án of today. This reaffirms that the Kura'án (Goran) of today, occupy much of the same territory as the Garamantes once did. In Islamic literature , the earliest mention as the Toubou people is perhaps that along with the Zaghawa people in an 8th-century text by Arabic scholar Ibn Qutaybah . The 9th century al-Khwarizmi mentions the Daza people (southern Teda). During the expansive era of Trans-Saharan trade ,
5900-399: The Sahara (birds in particular) such as African silverbill and black-faced firefinch , among others. There are also small desert crocodiles in Mauritania and the Ennedi Plateau of Chad. The deathstalker scorpion can be 10 cm (3.9 in) long. Its venom contains large amounts of agitoxin and scyllatoxin and is very dangerous; however, a sting from this scorpion rarely kills
6018-408: The Sahara area then reverts to desert conditions and the flora and fauna are forced to retreat northwards to the Atlas Mountains , southwards into West Africa , or eastwards into the Nile Valley . This separates populations of some of the species in areas with different climates , forcing them to adapt , possibly giving rise to allopatric speciation . It is also proposed that humans accelerated
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#17328515276996136-514: The Sahara is strongly influenced by the North Atlantic Oscillation (NAO), with warmer winter temperatures during negative NAO events and cooler winters with more frosts when the NAO is positive. This is because the weaker clockwise flow around the eastern side of the subtropical anticyclone during negative NAO winters, although too dry to produce more than negligible precipitation, does reduce
6254-441: The Sahara is the continental tropical (cT) air mass, which is hot and dry. Hot, dry air masses primarily form over the North-African desert from the heating of the vast continental land area, and it affects the whole desert during most of the year. Because of this extreme heating process, a thermal low is usually noticed near the surface, and is the strongest and the most developed during the summertime. The Sahara High represents
6372-407: The Sahara region. However, at least two instances of snowfall have been recorded in Sahara, in February 1979 and December 2016, both in the town of Ain Sefra . One theory for the formation of the Sahara is that the monsoon in Northern Africa was weakened because of glaciation during the Quaternary period, starting two or three million years ago. Another theory is that the monsoon was weakened when
6490-438: The Tabu, Tebu, Tebou, Tibu, 'Tibbu, Toda, Todga, Todaga, Tubu, Tuda, Tudaga, or Gorane people. The Daza are sometimes referred to as Gouran (or Gorane, Goran, Gourane), an Arabian exonym. Many of Chad's leaders have been Toubou (Gouran), including presidents Goukouni Oueddei and Hissène Habré . The Toubou people have historically lived in northern Chad, northeastern Niger, and southern Libya. They have sometimes been called
6608-548: The Tassili n'Ajjer in southeast Algeria. Fossils of dinosaurs , including Afrovenator , Jobaria and Ouranosaurus , have also been found here. The modern Sahara, though, is not lush in vegetation, except in the Nile Valley, at a few oases , and in the northern highlands, where Mediterranean plants such as the olive tree are found to grow. Shifts in Earth's axis increased temperatures and decreased precipitation, which caused an abrupt beginning of North Africa desertification about 5,400 years ago. The Kiffian culture
6726-456: The Teda deliberately allege their identity as "Kamadja" to their freed captives, who question about the significance of this designation. The Teda respond that they know the freed captives' people led them to assume this title. However, once the descendants of freed slaves embrace this belief and depart, the Teda proceed to use insulting terms such as "blind," "stupid," and "unintelligent," as well as other terms that are demeaning. The term "Kamadja"
6844-417: The Tibesti region are referred to as Tubou." Their name is derived from this. The Teda are found primarily in the Sahara regions around the borders of southeast Libya, northeast Niger and northern Chad . They consider themselves a warrior people. The Daza live towards the Sahel region and are spread over much of north-central Chad. The Daza consist of numerous clans. Some major tribes, clans, societies of
6962-592: The Toubou inhabited lands which were frequently used by merchant caravans, specifically along the Kufra oasis routes. It is unknown if the Toubou enganged with the caravans. According to a study published in The American Journal of Human Genetics (Haber et al. 2016) that examined Y-DNA haplogroups from samples obtained from 75 Toubou men, haplogroups associated with paternal Eurasian ancestry were present at rates of 34% for R1b (R1b-V88), 31% for T1a , and 1% for J1 . The North African associated haplogroup E-M78 were present at rates of 28%, while E-M81 appeared at
7080-402: The Yira clan as Jira, the Yenoa clans as Jenoa, the Yin oasis as Jin, the Yarda oasis as Jarda, the Faya oasis as Faja, the Bidayet community as Bidajet, and the Goli Yeskou as Goli Jeskou (Black snake), many more other carelessness. These oversights and misinterpretations are notable in the exploration literatures. The term "Kamadja" has become somewhat entrenched a certain level of permanence but
7198-412: The amount of rainfall received – the Northern (Mediterranean), Central and Southern Zones. There are two transitional zones – the Mediterranean-Sahara transition and the Sahel transition zone. The Saharan flora comprises around 2800 species of vascular plants . Approximately a quarter of these are endemic . About half of these species are common to the flora of the Arabian deserts. The central Sahara
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#17328515276997316-422: The ancient Tethys Sea dried up during the Tortonian period around 7 million years ago. The climate of the Sahara has undergone enormous variations between wet and dry over the last few hundred thousand years, believed to be caused by long-term changes in the North African climate cycle that alters the path of the North African Monsoon – usually southward. The cycle is caused by a 41,000-year cycle in which
7434-421: The atmospheric circulation itself, the desert is made even drier by its geographical configuration and location. Indeed, the extreme aridity of the Sahara is not only explained by the subtropical high pressure: the Atlas Mountains of Algeria, Morocco and Tunisia also help to enhance the aridity of the northern part of the desert. These major mountain ranges act as a barrier, causing a strong rain shadow effect on
7552-442: The challenges faced by French colonists while attempting to articulate the phoneme represented by the letter "y" in the alphabet. As a replacement, they frequently resorted to apply the phonetic sounds of "dj" or "j". Moreover, the explorers who visited Borkou before the French colonization made contributions to the misinterpretation of various expressions, as evidenced by Gustav Nichtigal's works. These inaccuracies include referring to
7670-419: The citizens of the aforementioned canton are referred to as "Kamay" in the singular form for males, while the singular form for females may be either "Kamaydo" or "Kamayro", with the vocalization of the suffix varying across specific regions and individuals' accents, ranging from "do" to "ro" which is only the "d" and "r". The plural form of the female noun may be expressed as either "Kamayda" or "Kamayra", whereas
7788-448: The climate). The moister Saharan conditions had begun about 12,500 BCE, with the extension of the ITCZ northward in the northern hemisphere summer, bringing moist wet conditions and a savanna climate to the Sahara, which (apart from a short dry spell associated with the Younger Dryas ) peaked during the Holocene thermal maximum climatic phase at 4000 BCE when mid-latitude temperatures seem to have been between 2 and 3 degrees warmer than in
7906-474: The daytime. The smallest variations are found along the coastal regions due to high humidity and are often even lower than a 10 °C (18 °F) difference, while the largest variations are found in inland desert areas where the humidity is the lowest, mainly in the southern Sahara. Still, it is true that winter nights can be cold, as it can drop to the freezing point and even below, especially in high-elevation areas. The frequency of subfreezing winter nights in
8024-469: The desert experiences around three to five months when the average high strictly exceeds 40 °C (104 °F); while in the southern central part of the desert, there are up to six or seven months when the average high temperature strictly exceeds 40 °C (104 °F). Some examples of this are Bilma , Niger and Faya-Largeau, Chad. The annual average daily temperature exceeds 20 °C (68 °F) everywhere and can approach 30 °C (86 °F) in
8142-405: The desert, along with the highlands, have areas of sparse grassland and desert shrub , with trees and taller shrubs in wadis , where moisture collects. In the central, hyperarid region, there are many subdivisions of the great desert: Tanezrouft , the Ténéré , the Libyan Desert , the Eastern Desert , the Nubian Desert and others. These extremely arid areas often receive no rain for years. To
8260-469: The destruction were arrested, and families who refused to leave their homes were beaten. In the Libyan Civil War , Toubou tribespeople in Libya sided with the rebel anti-Gaddafi forces and participated in the Fezzan campaign against forces loyal to Muammar Gaddafi , briefly capturing the town of Qatrun and claiming to capture Murzuk for the rebel movement a month later. In March 2012, bloody clashes broke out between Toubou and Arab tribesmen in
8378-475: The drying-out period from 6000 to 2500 BCE by pastoralists overgrazing available grassland. The growth of speleothems (which requires rainwater) was detected in Hol-Zakh, Ashalim , Even-Sid, Ma'ale-ha-Meyshar, Ktora Cracks, Nagev Tzavoa Cave, and elsewhere, and has allowed tracking of prehistoric rainfall. The Red Sea coastal route was extremely arid before 140 and after 115 kya (thousands of years ago). Slightly wetter conditions appear at 90–87 kya, but it still
8496-634: The east and the Mediterranean in the north to the Atlantic Ocean in the west, where the landscape gradually changes from desert to coastal plains. To the south it is bounded by the Sahel , a belt of semi-arid tropical savanna around the Niger River valley and the Sudan region of sub-Saharan Africa . The Sahara can be divided into several regions, including the western Sahara, the central Ahaggar Mountains ,
8614-646: The eastern continental extension of the Azores High , centered over the North Atlantic Ocean . The subsidence of the Sahara High nearly reaches the ground during the coolest part of the year, while it is confined to the upper troposphere during the hottest periods. The effects of local surface low pressure are extremely limited because upper-level subsidence still continues to block any form of air ascent. Also, to be protected against rain-bearing weather systems by
8732-600: The edge of the desert thousands of years ago, since the end of the last glacial period . In the Central Sahara, engraved and painted rock art were created perhaps as early as 10,000 years ago, spanning the Bubaline Period , Kel Essuf Period , Round Head Period , Pastoral Period , Caballine Period , and Cameline Period . The Sahara was then a much wetter place than it is today. Over 30,000 petroglyphs of river animals such as crocodiles survive, with half found in
8850-431: The entirety of Chad. On the other end of the spectrum, the nomenclature of Kamaya has signification, value, and historical origins rooted in the expression "Kama-dro-yédé". This expression pertains to the inhabitant of the Faya oasis in the accent of Kanem Dazaga, where "Kama" describes a valley, "dro" implies interior, and "yédé" denotes an occupant. In this context, "yé" indicates the act of dwelling, while "dé" stands as
8968-476: The flow of dry, cold air from higher latitudes of Eurasia into the Sahara significantly. The average annual rainfall ranges from very low in the northern and southern fringes of the desert to nearly non-existent over the central and the eastern part. The thin northern fringe of the desert receives more winter cloudiness and rainfall due to the arrival of low pressure systems over the Mediterranean Sea along
9086-699: The habitat in areas of permanent water (oases) or where water comes close to the surface. Here, the local pressure on natural resources can be intense. The remaining populations of large mammals have been greatly reduced by hunting for food and recreation. In recent years development projects have started in the deserts of Algeria and Tunisia using irrigated water pumped from underground aquifers. These schemes often lead to soil degradation and salinization . Researchers from Hacettepe University have reported that Saharan soil may have bio-available iron and also some essential macro and micro nutrient elements suitable for use as fertilizer for growing wheat. People lived on
9204-405: The highest recorded worldwide. The sky is usually clear above the desert, and the sunshine duration is extremely high everywhere in the Sahara. Most of the desert has more than 3,600 hours of bright sunshine per year (over 82% of daylight hours), and a wide area in the eastern part has over 4,000 hours of bright sunshine per year (over 91% of daylight hours). The highest values are very close to
9322-543: The hottest months of the year. Salah, well known in Algeria for its extreme heat, has average high temperatures of 43.8 °C (110.8 °F), 46.4 °C (115.5 °F), 45.5 °C (113.9 °F) and 41.9 °C (107.4 °F) in June, July, August and September respectively. There are even hotter spots in the Sahara, but they are located in extremely remote areas, especially in the Azalai , lying in northern Mali. The major part of
9440-485: The hottest regions year-round. However, most of the desert has a value in excess of 25 °C (77 °F). Sand and ground temperatures are even more extreme. During daytime, the sand temperature is extremely high: it can easily reach 80 °C (176 °F) or more. A sand temperature of 83.5 °C (182.3 °F) has been recorded in Port Sudan . Ground temperatures of 72 °C (161.6 °F) have been recorded in
9558-400: The indicator of a singular form. Thus, the expression "Kama-dro-yédé" may be interpreted as "the individual who dwells in the valley" of the palm grove situated in the Faya oasis. The ancient designation for the clans of Kamaya was "Kamayada", with "ya" denoting habitation and "da" indicating plurality. Conversely, "Kamayédé" is the singular and authentic noun used to refer to an occupant of
9676-406: The last glacial period , the Sahara was much larger than it is today, extending south beyond its current boundaries. The end of the glacial period brought more rain to the Sahara, from about 8000 BCE to 6000 BCE, perhaps because of low pressure areas over the collapsing ice sheets to the north. Once the ice sheets were gone, the northern Sahara dried out. In the southern Sahara, the drying trend
9794-458: The late nineteenth century, The hypothesis was later formally proposed and tested by the meteorologist John Kutzbach in 1981. Kutzbach's ideas about the impacts of insolation on global monsoonal patterns have become widely accepted today as the underlying driver of long-term monsoonal cycles. Kutzbach never formally named his hypothesis and as such it is referred to here as the " Orbital Monsoon Hypothesis " as suggested by Ruddiman in 2001. During
9912-724: The leadership of Muammar Gaddafi as well as after the Libyan civil war . In a report released by the UNHCR , the Society for Threatened Peoples (STP) reported "massive discrimination" against the Toubou minority, which resides in the southeastern corner of the country around the oasis town of Kufra . In December 2007, the Gaddafi government stripped Toubou Libyans of their citizenship, claiming that they were not Libyans, but rather Chadians. In addition, local authorities denied Toubou people access to education and healthcare. In response, an armed group called
10030-518: The leeward side by dropping much of the humidity brought by atmospheric disturbances along the polar front which affects the surrounding Mediterranean climates. The primary source of rain in the Sahara is the Intertropical Convergence Zone , a continuous belt of low-pressure systems near the equator which bring the brief, short and irregular rainy season to the Sahel and southern Sahara. Rainfall in this giant desert has to overcome
10148-498: The male plural and as general and "Kamadji" for the male singular, are used as generic phrases. It is worth noting that these terms lack inherent significance. The solitary form of the female term, "Kamadjedo" or "Kamadjero", might be seen as implausible and without coherence, whilst the plural form of the female term, "Kamadjeda", has an exceptionally peculiar and irrational quality. These terms are devoid of any discernible significance. The mispronunciation in question may be attributed to
10266-419: The maximum area of water and to find any surface moisture, and by having small thick leaves or needles to prevent water loss by evapotranspiration . Plant leaves may dry out totally and then recover. Several species of fox live in the Sahara including: the fennec fox , pale fox and Rüppell's fox . The addax , a large white antelope , can go nearly a year in the desert without drinking. The dorcas gazelle
10384-437: The middle Holocene Tenerian culture . The post-Kiffian desiccation lasted until around 4600 BCE, when the earliest artefacts associated with the Tenerians have been dated to. Some 200 skeletons have been discovered at Gobero. The Tenerians were considerably shorter in height and less robust than the earlier Kiffians. Craniometric analysis also indicates that they were osteologically distinct. The Kiffian skulls are akin to those of
10502-563: The north, the Sahara skirts the Mediterranean Sea in Egypt and portions of Libya, but in Cyrenaica and the Maghreb , the Sahara borders the Mediterranean forest, woodland, and scrub eco-regions of northern Africa, all of which have a Mediterranean climate characterized by hot summers and cool and rainy winters. According to the botanical criteria of Frank White and geographer Robert Capot-Rey,
10620-472: The northern limit of the Sahara corresponds to the northern limit of date palm cultivation and the southern limit of the range of esparto , a grass typical of the Mediterranean climate portion of the Maghreb and Iberia . The northern limit also corresponds to the 100 mm (3.9 in) isohyet of annual precipitation. To the south, the Sahara is bounded by the Sahel, a belt of dry tropical savanna with
10738-455: The opposite is true, with decreased annual precipitation and less vegetation resulting in a phase of the Sahara climate cycle known as the "desert Sahara". The idea that changes in insolation (solar heating) caused by long-term changes in Earth's orbit are a controlling factor for the long-term variations in the strength of monsoon patterns across the globe was first suggested by Rudolf Spitaler in
10856-438: The parental clan, it provides ties. The third factor is protective relationships at the primary residence. Despite shared linguistic heritage, few institutions among the Toubou generate a broader sense of identity than the clan. Regional divisions do exist, however. During the colonial period (and since independence in 1960), Chadian administrations have conferred legality and legitimacy on these regional groupings by dividing
10974-419: The physical and atmospheric barriers that normally prevent the production of precipitation. The harsh climate of the Sahara is characterized by: extremely low, unreliable, highly erratic rainfall; extremely high sunshine duration values; high temperatures year-round; negligible rates of relative humidity ; a significant diurnal temperature variation ; and extremely high levels of potential evaporation which are
11092-567: The plural form for males and as a general reference is "Kamaya". The Teda, in particular, forbids marriage between cousins, up to 9 generations unrelated, a tradition prevalent with many Muslim ethnic groups in Africa, however, the Daza of Kanem, Bahr el-Ghazal, and certain clans of Borkou and Ennedi marry close cousins since it is not prohibited in the Quran, they also doubt the origins of individuals and misalliance. A man may marry and have multiple wives according to Islamic tenets, however, this practice
11210-401: The polar front, although very attenuated by the rain shadow effects of the mountains and the annual average rainfall ranges from 100 millimetres (4 in) to 250 millimetres (10 in). For example, Biskra , Algeria, and Ouarzazate , Morocco, are found in this zone. The southern fringe of the desert along the border with the Sahel receives summer cloudiness and rainfall due to the arrival of
11328-468: The protection of the Kamaya canton and they were subsequently emancipated by the esteemed chief, Al-Haj Kellei Chahami, who granted them land that enabled them to settle, and this district was formerly referred to as "Ni-Agaranga" in Dazaga, which literally translates to "country of slaves" in the Faya-Largeau city. However, the Borkou municipality opted to rechristen it as "Quartier Huit" (Eighth Quarter) as
11446-518: The recent past. Analysis of Nile River deposited sediments in the delta also shows this period had a higher proportion of sediments coming from the Blue Nile , suggesting higher rainfall also in the Ethiopian Highlands . This was caused principally by a stronger monsoonal circulation throughout the sub-tropical regions, affecting India, Arabia and the Sahara. Lake Victoria only recently became
11564-481: The right to a part of the harvest from the fields irrigated by their water. Within the clan and family contexts, individuals also may have personal claims to palm trees and animals. Much of the political class of Chad are drawn from Dazzaga. During the First Chadian Civil War (1966–1979), the derde came to occupy a more important position. In 1965 the Chadian government assumed direct authority over
11682-587: The same area suggest that they lived on the shores of a lake that was present during the Holocene Wet Phase, a period when the Sahara was verdant and wet. The Kiffian people were tall, standing over six feet in height. Craniometric analysis indicates that this early Holocene population was closely related to the Late Pleistocene Iberomaurusians and early Holocene Capsians of the Maghreb, as well as mid-Holocene Mechta groups. Traces of
11800-530: The same customs and traditions as the rest of the Toubou, but they were independent in their politics and beliefs, much like the artisan castes found in many ethnic groups of western Chad such as the Kanembou , Yedina , Arab, Kouri and Danawa. Marriage between a member of the Azza and a member from a different strata of the Toubou people has been culturally unacceptable. The Azza are Dazaga-speaking people who sprang from
11918-459: The scale of the Nile floods between 2700 and 2100 BCE. The Sahara comprises several distinct ecoregions . With their variations in temperature, rainfall, elevation, and soil, these regions harbor distinct communities of plants and animals. The flora of the Sahara is highly diversified based on the bio-geographical characteristics of this vast desert. Floristically , the Sahara has three zones based on
12036-413: The scattered oases where they cultivate dates , grain and legumes . Their herds include dromedaries , goats, cattle, donkeys and sheep. Livestock is a major part of their wealth, and trade. Livestock is also used as a part of dowry payment during marriage, either as one where the groom's family agrees to pay to the bride's family in exchange for the bride, or it is given by the bride's kin to supply
12154-521: The shelter of shrubs such as balanites and acacias. They are unusually pale. The other cheetah subspecies ( northeast African cheetah ) lives in Chad, Sudan and the eastern region of Niger. However, it is currently extinct in the wild in Egypt and Libya. There are approximately 2000 mature individuals left in the wild. Other animals include the monitor lizards , hyrax , sand vipers , and small populations of African wild dog , in perhaps only 14 countries and red-necked ostrich . Other animals exist in
12272-620: The source of the White Nile and dried out almost completely around 15 kya. The sudden subsequent movement of the ITCZ southwards with a Heinrich event (a sudden cooling followed by a slower warming), linked to changes with the El Niño-Southern Oscillation cycle, led to a rapid drying out of the Saharan and Arabian regions, which quickly became desert. This is linked to a marked decline in
12390-475: The southern city of Sabha, Libya . In response, Issa Abdel Majid Mansour, the leader of the Toubou tribes in Libya threatened a separatist bid, decrying what he saw as "ethnic cleansing" against Toubou and declaring "We announce the reactivation of the Toubou Front for the Salvation of Libya to protect the Toubou people from ethnic cleansing." The TFSL was the opposition group active in the unrest of 2007–2008 that
12508-561: The strongest anticyclonic weather regime, and the annual average rainfall can drop to less than 1 millimetre (0.04 in). In fact, most of the Sahara receives less than 20 millimetres (0.8 in). Of the 9,000,000 square kilometres (3,500,000 sq mi) of desert land in the Sahara, an area of about 2,800,000 square kilometres (1,100,000 sq mi) (about 31% of the total area) receives an annual average rainfall amount of 10 millimetres (0.4 in) or less, while some 1,500,000 square kilometres (580,000 sq mi) (about 17% of
12626-549: The theoretical maximum value. A value of 4300 hours (98%) of the time would be recorded in Upper Egypt ( Aswan , Luxor ) and in the Nubian Desert ( Wadi Halfa ). The annual average direct solar irradiation is around 2,800 kWh/(m year) in the Great Desert. The Sahara has a huge potential for solar energy production. The high position of the Sun, the extremely low relative humidity, and the lack of vegetation and rainfall make
12744-465: The tilt of the earth changes between 22° and 24.5°. At present, it is in a dry period, but it is expected that the Sahara will become green again in 15,000 years. When the North African monsoon is at its strongest, annual precipitation and subsequent vegetation in the Sahara region increase, resulting in conditions commonly referred to as the " green Sahara ". For a relatively weak North African monsoon,
12862-588: The title Daza . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Daza&oldid=1043335084 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Language and nationality disambiguation pages Toubou people The Toubou or Tubu (from Old Tebu , meaning "rock people" ) are an ethnic group native to
12980-478: The total area) receives an average of 5 millimetres (0.2 in) or less. The annual average rainfall is virtually zero over a wide area of some 1,000,000 square kilometres (390,000 sq mi) in the eastern Sahara comprising deserts of: Libya, Egypt and Sudan ( Tazirbu , Kufra , Dakhla , Kharga , Farafra , Siwa , Asyut , Sohag , Luxor, Aswan, Abu Simbel , Wadi Halfa) where the long-term mean approximates 0.5 millimetres (0.02 in) per year. Rainfall
13098-462: The two Northeastern Sub-Saharan samples, this Western Eurasian ancestry in their Toubou sample was 31.4%, and it was 14.9% for the East African Bantu. The Toubou also maintained similar genetic distance to other Sub-Saharan samples, but was also genetically close to North African and non-African samples. The Eurasian component in the North African individuals was present at high rates of 84.9% for
13216-409: The young couple with economic resources in order to start a family. In a few places, the Toubou also mine salt and natron , a salt-like substance which is essential in nearly all components of Toubou life from medicine, as a mixture in chewing tobacco, preservation, tanning, soap production, textiles and for livestock. Literacy rates among the Toubou are quite low. Many Toubou people still follow
13334-442: Was "ruthlessly persecuted" by the Gaddafi government. Sahara The Sahara ( / s ə ˈ h ɑːr ə / , / s ə ˈ h ær ə / ) is a desert spanning across North Africa . With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic . The name "Sahara"
13452-484: Was endogamous, and their status was inherited by birth. In the year 1953, Al-Haj Kellei Chahami, a highly esteemed privileged chieftain of the Kamaya canton, an agreement with the French colonizers decreed the emancipation of all slaves and suppressed the use of captives in the Borkou region, while slaves from the contiguous regions, such as Tibesti and Ennedi, uncovered the liberation center situated in Borkou. Several of these slaves escaped and sought refuge in Borkou under
13570-403: Was initially counteracted by the monsoon , which brought rain further north than it does today. By around 4200 BCE, however, the monsoon retreated south to approximately where it is today, leading to the gradual desertification of the Sahara. The Sahara is now as dry as it was about 13,000 years ago. Lake Chad is the remnant of a former inland sea, paleolake Mega-Chad, which existed during
13688-461: Was just one tenth the rainfall around 125 kya. In the southern Negev Desert speleothems did not grow between 185 and 140 kya ( MIS 6), 110–90 (MIS 5.4–5.2), nor after 85 kya nor during most of the interglacial period (MIS 5.1), the glacial period and Holocene . This suggests that the southern Negev was arid-to-hyper-arid in these periods. During the Last Glacial Maximum (LGM) the Sahara
13806-556: Was more extensive than it is now with the extent of the tropical forests being greatly reduced, and the lower temperatures reduced the strength of the Hadley Cell . This is a climate cell which causes rising tropical air of the Inter-Tropical Convergence Zone (ITCZ) to bring rain to the tropics, while dry descending air, at about 20 degrees north , flows back to the equator and brings desert conditions to this region. It
13924-525: Was to become a national figure; he played an important role in the battles of N'Djamena in 1979 and 1980 and served as head of state for a time. Another northerner, Hissène Habré of the Dazagra, replaced Goukouni of the Teda in 1982, and eventually lost power to the Zaghawa Idriss Déby after 8 years. The Toubou minority in Libya suffered what has been described as "massive discrimination" both under
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