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Guineo-Congolian Region
The Guineo-Congolian region is a biogeographical region in Africa straddling the Equator and stretching from the Atlantic Ocean through the Congo Basin to the Congo / Nile divide in Rwanda and Burundi. Formerly, this region was largely covered in rain forest, on both well-drained sites and in swamp forests, but little undisturbed primary forest now remains, having been replaced in many areas by savanna and secondary-growth forest. Description The Guineo-Congolian region is a tropical, lowland rain forest area, typified by the forests of the Congo Basin. The terrain is generally under and the annual rainfall is typically in the range . The forest is tall with a dense canopy, or more above the ground, with emergent trees up to tall, and with several layers. The constituent trees are mostly evergreen or semi-evergreen, with a scattering of deciduous species. In the wetter areas, the trees may be clad with numerous epiphytes, but these are less common in drier areas. Large trees ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biogeography
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area.Brown University, "Biogeography." Accessed February 24, 2014. . Phytogeography is the branch of biogeography that studies the distribution of plants. Zoogeography is the branch that studies distribution of animals. Mycogeography is the branch that studies distribution of fungi, such as mushrooms. Knowledge of spatial variation in the numbers and types of organisms is as vital to us today as it was to our early human ancestors, as we adapt to heterogeneous but geographically predictable environments. Biogeography is an integrative field of inquiry that unites concepts and information from ecology, evolutionary biology, taxonomy, geology, physical geography, palaeontology, and climatology.Dansereau, Pierre. 1957 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lovoa Trichilioides
''Lovoa trichilioides'', also called African walnut, Congowood, dibetou or tigerwood, is a species of plant in the family Meliaceae. It is found in Angola, Cameroon, the Republic of the Congo, the Democratic Republic of the Congo, Ivory Coast, Gabon, Ghana, Liberia, Nigeria, Sierra Leone, Tanzania, and Uganda. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... Germination success is somewhat limited by short-lived seeds which are heavily predated. Exploitation rates are high. It is one of the two principal timber species in Congo. References trichilioides Vulnerable plants Taxonomy articles created by Polbot {{Meliaceae-stub ru:Ловоа ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zambezian Region
The Zambezian region is a large biogeographical region in Africa. The Zambezian region includes woodlands, savannas, grasslands, and thickets, extending from east to west in a broad belt across the continent. The Zambezian region lies south of the rainforests of the Guineo-Congolian region. The Zambezian region is bounded by deserts and xeric shrublands on the southwest, the Highveld grasslands of South Africa to the south, and the subtropical Maputaland forests on the southeast. Vegetation types The dominant vegetation types in the Zambezian region include: * Dry deciduous forest and scrub forest * Zambezian wooded grassland * Itigi deciduous thicket * Miombo woodland * Mopane woodland * Undifferentiated woodland * Zambezian flooded grasslands and savannas * Zambezian halophytics Biodiversity Botanist Frank White estimated that the region has 8500 species of plants, of which 4590, or 54%, are endemic. The Zambezian region is a centre of diversity for tree species in the genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ituri Rainforest
The Ituri Rainforest is a rainforest located in the Ituri Province of northeastern Democratic Republic of the Congo. The forest's name derives from the nearby Ituri River which flows through the rainforest, connecting firstly to the Aruwimi River and finally into the Congo. Geography The Ituri Rainforest is about in area, and is located between 0° and 3°N and 27° and 30° E. Elevation in the Ituri ranges from about . The climate is warm and humid, as exemplified by the nearby city of Bunia, which however is at a slightly higher elevation. About one-fifth of the rainforest is made up of the Okapi Wildlife Reserve, a World Heritage Site. It is also the home of the Mbuti pygmies, one of the hunter-gatherer peoples living in equatorial rainforests characterised by their short height (below , on average). They have been the subject of research by a variety of outsiders, including Patrick and Anne Eisner Putnam, who lived on the banks of the at the edge of the Ituri. They were a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monodominance
Monodominance is an ecological condition in which more than 60% of the tree canopy comprises a single species of tree.Peh, Kelvin S.-H.; Lewis, Simon L.; Lloyd, Jon (July 2011). "Mechanisms of monodominance in diverse tropical tree-dominated systems". Journal of Ecology (British Ecological Society) 99 (4): 891–898.doi:10.1111/j.1365-2745.2011.01827.x.-Prebble, Matthew; Kennedy, Jean; Southern, Wendy (2010). "Holocene lowland vegetation change and human ecology in Manus Province, Papua New Guinea". In Haberle, S.; Stevenson, J.; Prebble, M. Altered Ecologies: Fire, Climate and Human Influence on Terrestrial Landscapes. Terra Australis Series 32. ANU E Press. . Monodominant forests are quite common under conditions of extra-tropical climate types. Although monodominance is studied across different regions, most research focuses on the many prominent species in tropical forests. Connel and Lowman, originally called it single-dominance.Connel, Joseph H.; Lowman, Margaret D. (1989). "L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michelsonia Microphylla
''Michelsonia'' is a genus of tree in the legume family, Fabaceae, where it is classified in the subfamily Detarioideae. It is a monotypic genus, the only species being ''Michelsonia microphylla''. It is native to the tropical rain forests of the Democratic Republic of the Congo. The wood is used locally for construction work. Description ''Michelsonia microphylla'' is a medium to large tree with a spreading crown, growing to a height of or more. The trunk is cylindrical and bare of branches for the first . It can grow to a diameter of about , the base flaring out a little and sometimes having small buttresses. The pinnate leaves are alternate and have ten to sixteen pairs of leaflets. The compound inflorescences are at the tips of the shoots and the individual flowers have white petals about long, and are followed by flat, glossy brown, woody pods up to long. These are so heavy that they sink in water. This tree is similar in appearance to '' Tetraberlinia baregarum'', with wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julbernardia Seretii
''Julbernardia seretii'', commonly known as the Congo zebrawood, is a species of legume in the family Fabaceae. It is found in tropical West and Central Africa. Description ''Julbernardia seretii'' is a large tree growing to a height of . The trunk is straight and cylindrical, up to in diameter, and without branches for more than half its height. The flowers are white and fragrant, and the fruits are large pods, the seeds weighing about . Distribution This tree is a constituent of tropical rainforest in Nigeria, Cameroon, Equatorial Guinea, Gabon, the Republic of the Congo, the Democratic Republic of the Congo and Angola. Ecology In the Ituri Rainforest, in the northeast of the Democratic Republic of the Congo, the dominant trees are ''J. seretii'' and ''Gilbertiodendron dewevrei'', while in the Okapi Wildlife Reserve, ''J. seretii'' and ''Cynometra alexandri'' are the most abundant. The seeds of this tree fall to the ground and dispersal is limited to a distance of up to fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilbertiodendron Dewevrei
''Gilbertiodendron dewevrei'' is a species of tree in the family Fabaceae, native to tropical rain forests in Central Africa. It is often the dominant tree species of the Guineo-Congolian rainforest. The timber is traded as ''limbali'', and is used for construction, flooring and railway sleepers. It is also used for making boats, furniture, tool handles and joinery and for making charcoal. Description ''Gilbertiodendron dewevrei'' is a large evergreen tree, reaching a height of up to . The crown is dense and allows little light through. The unbuttressed trunk is cylindrical, with a diameter of up to or more, the lower half usually being devoid of branches. The bark is rough, greyish-brown or yellowish brown, peeling off in large flakes. The leaves are pendulous and leathery, the underside being covered with papillae, and they often have a few glands near the margins. They are alternate and pinnate with two to five pairs of leaflets. Each leaflet is ovate or elliptical, the lowe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cynometra Alexandri
''Cynometra alexandri'', the Uganda ironwood or muhimbi, is a species of legume that occurs in tropical lowland forests of central and east Africa. They grow gregariously in drier forest types and as a constituent of swamp forests. They reach some to in height, and larger trees often develop hollow boles and buttress roots. Taxonomy According to (2019), ''Cynometra alexandri'' along with other mainland tropical African (but not all) species of the genus ''Cynometra'' should be excluded from the genus and will be transferred to a new as yet un-named genus in the future. Distribution and habitat In Uganda it is widespread in the lowland forests (below 2,000 metres a.s.l) in the Western Rift Escarpment, where it shows a tendency toward monospecific dominance. After initial colonising, a mixed forest would contain Uganda ironwood, '' Alstonia congensis'', '' Trichilia prieuriana'', ''Khaya anthotheca'' and ''Celtis mildbraedii''. When climax forest develops at altitudes between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachystegia Laurentii
''Brachystegia laurentii'', a plant in the family Fabaceae, is a species of large tree found in western Cameroon, Gabon, Equatorial Guinea, the Democratic Republic of the Congo and the Republic of the Congo. It has a dense, umbrella-shaped crown. The wood is known as ''bomanga'' and has many uses in building and construction. Description ''Brachystegia laurentii'' is a fairly large evergreen tree, reaching a height of about and a diameter of . The trunk is cylindrical, without buttresses but sometimes with flutings near the base, and unbranched for the first . The outer bark is rough, yellowish-grey to dark grey, and peels away in large flakes. The inner bark is orange-red, thick and fibrous, darkening on exposure to the air. The crown is dense and umbrella-shaped, with ascending branches. The twigs are drooping, and they and the branches bear numerous lenticels. The leaves are pinnate with a short petiole swollen at its base and three to five pairs of oblong-elliptical lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fabaceae
The Fabaceae or Leguminosae,International Code of Nomenclature for algae, fungi, and plants. Article 18.5 states: "The following names, of long usage, are treated as validly published: ....Leguminosae (nom. alt.: Fabaceae; type: Faba Mill. Vicia L.; ... When the Papilionaceae are regarded as a family distinct from the remainder of the Leguminosae, the name Papilionaceae is conserved against Leguminosae." English pronunciations are as follows: , and . commonly known as the legume, pea, or bean family, are a large and agriculturally important of |
Petersianthus Macrocarpus
''Petersianthus'' is a genus of woody plant in the Lecythidaceae family first described as a genus in 1865 under the name ''Petersia''. This turned out to be an illegitimate homonym, meaning that it had already been used by someone else to refer to a very different plant. So the name of these species in the Lecythidaceae was changed to ''Petersianthus''. It is native to the Philippines and to parts of Africa. The following two species belong to this genus, with the basionyms of both taxa belonging to what is known today as the family Combretaceae The Combretaceae, often called the white mangrove family, are a family of flowering plants in the order Myrtales. The family includes about 530 species of trees, shrubs, and lianas in ca 10 genera. The family includes the leadwood tree, ''Combre .... ;species # ' (syn. ''Combretum macrocarpum'' ) - Guinea, Ivory Coast, Cameroon, Congo Republic, Democratic Republic of the Congo, Cabinda, Gabon, Angola # '' Petersianthus quadrialatus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
