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West African Giraffe
The West African giraffe (''Giraffa camelopardalis peralta''), Niger giraffe or Nigerien giraffe is a subspecies of the giraffe distinguished by its light colored spots. It is found in the Sahel of West Africa. In the 19th century it ranged from Senegal to Lake Chad, yet in 2011 this subspecies only survives in a few isolated pockets containing about 400 individuals in total. Its last self-sustaining herd is in southwest Niger, supported by a series of refuges in Dosso Region and the tourist center at Kouré, some 80 km southeast of Niamey.Niger : la population des girafes augmente de 24% en 2011 (officiel) Xinhua, 2012-03-01. All captive so-called "West African giraffe" are now known to be the |
Kouré, Niger
Kouré is a rural community located east of Niamey, the capital of Niger. The town lies on both sides of the road from Niamey to Dallol Bosso. Kouré is best known for West African giraffes (''Giraffa camelopardalis peralta''), an endemic subspecies of West Africa. The population of giraffes in Niger reached a low of 50 animals 1984, but according to the Association to Safeguard Giraffes in Niger (ASGN) there are now 170 of them. ASGN and its partners have assisted the local community with bore holes, cereal banks, grain mills, seeds and fertilizer to encourage them to protect the giraffes, which can be destructive to crops. However, the population of giraffes is threatened by loss of the tiger bush habitat, which is gradually being cleared for agriculture. The African Wildlife Foundation is helping with reforestation. In August 2010, a tree nursery in Kouré produced about 3,500 seedlings. AWF planned to establish another nursery in the area in 2011. In July 2011 the ''Associat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tiger Bush
Tiger bush, or brousse tigrée in the French language, is a patterned vegetation community and ground consisting of alternating bands of trees, shrubs, or grass separated by bare ground or low herb cover, that run roughly parallel to contour lines of equal elevation. The patterns occur on low slopes in arid and semi-arid regions, such as in Australia, Sahelian West Africa, and North America. Due to the natural water harvesting capacity, many species in tiger bush usually occur only under a higher rainfall regime. Formation The alternating pattern arises from the interplay of hydrological, ecological, and erosional phenomena. In the regions where tiger bush is present, plant growth is water-limited - the shortage of rainfall prevents vegetation from covering the entire landscape. Instead, trees and shrubs are able to establish by either tapping soil moisture reserves laterally or by sending roots to deeper, wetter soil depths. By a combination of plant litter, root ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gao Region
The Gao Region ( Bambara: ߜߊߏ ߘߌߣߋߖߊ tr. Gao Dineja) is a region in northeastern Mali. The capital city is Gao. Geography The region is bordered to the north by Kidal Region, to the west by Tombouctou Region and Taoudénit Region, to the east by the Ménaka Region, and most of the south by Niger (Tahoua Region and Tillabéri Region), sharing a portion of the southern border with Burkina Faso (Sahel Region). Demographics Common ethnicities in the Gao Region include the Songhai, Bozo, Tuareg, Bambara, and Kounta. The towns include Gao, Bourem, and Bamba. The Gao Region is part of Mali, the northern part that was separated and declared independent by the National Movement for the Liberation of Azawad (MNLA) during the Tuareg rebellion of 2012. After the 1st Battle of Gao, the MNLA lost control to Islamist militias. Several other battles took place during the war, particularly in Gao. Administrative subdivisions For administrative purposes, the Gao Region ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agadez Region
Agadez Region is one of the seven regions of Niger. At , it covers more than half of Niger's land area, and is the largest region in the country, as well as the largest African state subdivision. The capital of the department is Agadez. History The region is a centre for palaeontology, with numerous dinosaur skeletons being found here, including the '' Ouranosaurus nigeriensis''. Cave painting and the remains of ancient human settlements are also located here. Tuareg peoples began migrating to the region from the mid-8th century. From the mid-15th century to the early 20th, much of the region was under the control of the Sultanate of Agadez, except for a period when the area came under the rule of the Songhai Empire in the 1500s. The region suffered with the advent of French colonialism as power shifted away to the southwest; Tuareg disaffection with French rule resulted in the Kaocen revolt in 1916–17. This process continued following Niger's independence in 1960; local T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waza National Park
Waza National Park is a national park in the Department of Logone-et-Chari, in Far North Region, Cameroon. It was founded in 1934 as a hunting reserve, and covers a total of . Waza achieved national park status in 1968, and became a UNESCO biosphere reserve in 1979. For the preservation and conservation of the biodiversity of the park, a Management Master Plan was drawn up in 1997, reported to be the first of its kind in Cameroon. The park is adjacent to the Chingurmi-Duguma sector of Nigeria's Chad Basin National Park. There is also a proposal to combine this park with the Waza Logone floodplain as a Ramsar Site. The forest dwellers who had their villages within the park were resettled on the borders of the park, after it was established. This was done with the objective of creating a social buffer to poaching activities and preserve the park's resources. The dominant vegetation is in the transition zone between the Sahel and Sudan savanna, containing acacia and open Y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetics
Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring over time. He observed that organisms (pea plants) inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene. Trait inheritance and molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded to study the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the cell, the organism (e.g. dominance), and within the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cameroon
Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the Central African Republic to the east; and Equatorial Guinea, Gabon and the Republic of the Congo to the south. Its coastline lies on the Bight of Biafra, part of the Gulf of Guinea and the Atlantic Ocean. Due to its strategic position at the crossroads between West Africa and Central Africa, it has been categorized as being in both camps. Its nearly 27 million people speak 250 native languages. Early inhabitants of the territory included the Sao civilisation around Lake Chad, and the Baka hunter-gatherers in the southeastern rainforest. Portuguese explorers reached the coast in the 15th century and named the area ''Rio dos Camarões'' (''Shrimp River''), which became ''Cameroon'' in English. Fulani soldiers founded the Adamawa Emirate in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chad
Chad (; ar, تشاد , ; french: Tchad, ), officially the Republic of Chad, '; ) is a landlocked country at the crossroads of North and Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon to the southwest, Nigeria to the southwest (at Lake Chad), and Niger to the west. Chad has a population of 16 million, of which 1.6 million live in the capital and largest city of N'Djamena. Chad has several regions: a desert zone in the north, an arid Sahelian belt in the centre and a more fertile Sudanian Savanna zone in the south. Lake Chad, after which the country is named, is the second-largest wetland in Africa. Chad's official languages are Arabic and French. It is home to over 200 different ethnic and linguistic groups. Islam (55.1%) and Christianity (41.1%) are the main religions practiced in Chad. Beginning in the 7th millennium BC, human populations moved into the Chadian basin in great number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nigeria
Nigeria ( ), , ig, Naìjíríyà, yo, Nàìjíríà, pcm, Naijá , ff, Naajeeriya, kcg, Naijeriya officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea to the south in the Atlantic Ocean. It covers an area of , and with a population of over 225 million, it is the most populous country in Africa, and the world's sixth-most populous country. Nigeria borders Niger in the north, Chad in the northeast, Cameroon in the east, and Benin in the west. Nigeria is a federal republic comprising of 36 states and the Federal Capital Territory, where the capital, Abuja, is located. The largest city in Nigeria is Lagos, one of the largest metropolitan areas in the world and the second-largest in Africa. Nigeria has been home to several indigenous pre-colonial states and kingdoms since the second millennium BC, with the Nok civilization in the 15th century BC, marking the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benin
Benin ( , ; french: Bénin , ff, Benen), officially the Republic of Benin (french: République du Bénin), and formerly Dahomey, is a country in West Africa. It is bordered by Togo to the west, Nigeria to the east, Burkina Faso to the north-west, and Niger to the north-east. The majority of its population lives on the southern coastline of the Bight of Benin, part of the Gulf of Guinea in the northernmost tropical portion of the Atlantic Ocean. The capital is Porto-Novo, and the seat of government is in Cotonou, the most populous city and economic capital. Benin covers an area of and its population in was estimated to be approximately million. It is a tropical nation, dependent on agriculture, and is an exporter of palm oil and cotton. Some employment and income arise from subsistence farming. The official language of Benin is French, with indigenous languages such as Fon, Bariba, Yoruba and Dendi also spoken. The largest religious group in Benin is Sunni Islam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mali
Mali (; ), officially the Republic of Mali,, , ff, 𞤈𞤫𞤲𞥆𞤣𞤢𞥄𞤲𞤣𞤭 𞤃𞤢𞥄𞤤𞤭, Renndaandi Maali, italics=no, ar, جمهورية مالي, Jumhūriyyāt Mālī is a landlocked country in West Africa. Mali is the eighth-largest country in Africa, with an area of over . The population of Mali is million. 67% of its population was estimated to be under the age of 25 in 2017. Its capital and largest city is Bamako. The sovereign state of Mali consists of eight regions and its borders on the north reach deep into the middle of the Sahara Desert. The country's southern part is in the Sudanian savanna, where the majority of inhabitants live, and both the Niger and Senegal rivers pass through. The country's economy centres on agriculture and mining. One of Mali's most prominent natural resources is gold, and the country is the third largest producer of gold on the African continent. It also exports salt. Present-day Mali was once part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sahel Drought
The Sahel region of Africa has long experienced a series of historic droughts, dating back to at least the 17th century. The Sahel region is a climate zone sandwiched between the Sudanian Savanna to the south and the Sahara desert to the north, across West and Central Africa. While the frequency of drought in the region is thought to have increased from the end of the 19th century, three long droughts have had dramatic environmental and societal effects upon the Sahel nations. Famine followed severe droughts in the 1910s, the 1940s, and the 1960s, 1970s and 1980s, although a partial recovery occurred from 1975-80. The most recent drought occurred in 2012. While at least one particularly severe drought has been confirmed each century since the 17th century, the frequency and severity of recent Sahelian droughts stands out. Famine and dislocation on a massive scale—from 1968 to 1974 and again in the early and mid-1980s—was blamed on two spikes in the severity of the 1960-1980 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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