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Sambirano
The Sambirano region, also known as the Sambirano domain, is a biogeographic region of northwestern Madagascar. It has a distinctive lowland climate with year-round rain, differing from the rest of seasonally-dry western and northern Madagascar. The climate supports humid lowland rainforests, with greater similarity to those of eastern Madagascar than the dry deciduous forests characteristic of the Madagascar's western lowlands.Donque, G. (1972). The Climatology of Madagascar. In: Battistini, R., Richard-Vindard, G. (eds) ''Biogeography and Ecology in Madagascar''. Monographiae Biologicae, vol 21. Springer, Dordrecht. https://doi-org.wikipedialibrary.idm.oclc.org/10.1007/978-94-015-7159-3_3Koechlin, J. (1972). Flora and Vegetation of Madagascar. In: Battistini, R., Richard-Vindard, G. (eds) ''Biogeography and Ecology in Madagascar''. Monographiae Biologicae, vol 21. Springer, Dordrecht. https://doi-org.wikipedialibrary.idm.oclc.org/10.1007/978-94-015-7159-3_4Chauvet, B. (1972). The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sambirano River
The Sambirano is a river of northwestern Madagascar in the region of Diana. It has its sources at the Maromokotra peak and flows through the Tsaratanana Reserve to the Indian Ocean. Its delta occupies 250 km. The ecosystem of the river, mainly forests and brushland, has many indigenous species, such as the Sambirano mouse lemur and Sambirano woolly lemur. The Madagascar dry deciduous forests The Madagascar dry deciduous forests represent a tropical dry forest ecoregion situated in the western and northern part of Madagascar. The area has high numbers of endemic plant and animal species but has suffered large-scale clearance for agric ... occupy much of the river basin, although mangroves are evident at parts of the coastal fringe.World Wildlife Fund, C. Michael Hogan. 2010''Madagascar dry deciduous forests''. eds. Sahotra Sarkar & Mark McGinley. Encyclopedia of Earth. National Council for Science and the Environment Washington DC. rev. 2013 References External links ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diana Region
Diana is a region in Madagascar at the northeast part of the island. It borders the regions of Sava to the southeast and Sofia to the southwest. It covers an area of 19,266 km2, and had a population of 889,736 in 2018. The regional capital is Antsiranana (previously known as ''Diego Suarez''). Geography Rivers The main rivers of the Diana region are: * Besokatra River * Irodo River * Loky River * Mahavavy River * Ramena River * Saharenana River * Sambirano River Protected areas and visitors' attractions The following national parks, reserves and visitors' attractions are located in Diana: * Ambodivahibe New Protected Area * Andrafiamena Andavakoera New Protected Area *Nosy Antsoha New Protected Area * Ampasindava New Protected Area * Galoko Kalobinono New Protected Area * Oronjia New Protected Area * Amber Mountain National Park * Analamerana Reserve * Ankarana Reserve * Lokobe National Park * Manongarivo Reserve * Tsaratanana National Park *Nosy Hara National Park *N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsaratanana Massif
Madagascar is a large island in the Indian Ocean off the eastern coast of southern Africa, east of Mozambique. It has a total area of with of land and of water. Madagascar is the fourth largest island and the 2nd largest island country in the world. The highest point is Maromokotro, in the Tsaratanana Massif region in the north of the island, at . The capital Antananarivo is in the Central Highlands near the centre of the island. It has the 25th largest Exclusive Economic Zone of . Madagascar is 400 kilometres (250 miles) east of mainland Africa. Geographical regions Madagascar can be divided into five general geographical regions: the east coast, the Tsaratanana Massif, the Central Highlands, the west coast, and the southwest. The highest elevations parallel the east coast. The total size is , which makes it the world's second largest island country. East coast The east coast consists of a narrow band of lowlands about fifty kilometers wide, formed from the sedimentatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ambanja
Ambanja is a city and commune in northern Madagascar. According to 2001 census the population of Ambanja was 28,468. Geography Ambanja is located on the northern berth of the Sambirano River and is crossed by the Route Nationale 6 (Antsiranana - Mahajanga and Antananarivo). It is located at a road distance of 1 200 km north of Antananarivo and 237 km south-west of Antsiranana. The town belongs to the district of Ambanja, which is a part of Diana Region. It is served by the local Ampampamena Airport and small, local, maritime harbour at Ankify that is the gate to the islands of Nosy Be and Nosy Komba Education In addition to primary schooling the town offers secondary education at both junior and senior levels. The town has a permanent court and hospital. There is a technical & professional Lycee in Ambanja, and a school of agriculture. The French international school is École Primaire Française d'Ambanja a.k.a. École primaire française Charles-Baudelaire. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptocarya Agathophylla
''Cryptocarya agathophylla'' (sometimes called clove nutmeg) is a member of the laurel family, Lauraceae, and originates in Madagascar. Malagasy names include ', ', ' and '. The former genus name ''Ravensara'' is a latinization of the Malagasy word '. Description ''Cryptocarya agathophylla'' is a small to medium-sized tree, growing up to 15 meters high. The leaves and twigs of ''C. agathophylla'' have a mildly camphorous aroma similar to eucalyptus. Range and habitat ''Cryptocarya agathophylla'' is endemic to Madagascar. It grows in humid and subhumid lowland forests and lower montane forests and secondary vegetation between 10 and 1,300 meters elevation. It is known from 11 locations in the central and eastern parts of Bongolava, Vatovavy Analanjirofo and Alaotra-Mangoro regions. Its estimated extent of occurrence (EOO) is 116,739 km2, the minimum area of occupancy (AOO) is 56 km2. Conservation and threats The species' population is decreasing, and its conservation statu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ebenaceae
The Ebenaceae are a family of flowering plants belonging to order Ericales. The family includes ebony and persimmon among about 768 species of trees and shrubs. It is distributed across the tropical and warmer temperate regions of the world. It is most diverse in the rainforests of Malesia, India, tropical Africa and tropical America. Many species are valued for their wood, particularly ebony, for fruit, and as ornamental plants. Biology The fruits contain tannins, a plant defense against herbivory, so they are often avoided by animals when unripe. The ripe fruits of many species are a food source for diverse animal taxa. The foliage is consumed by insects. The plants may have a strong scent. Some species have aromatic wood. They are important and conspicuous trees in many of their native ecosystems, such as lowland dry forests of the former Maui Nui in Hawaii, Caspian Hyrcanian mixed forests, Khathiar–Gir dry deciduous forests, Louisiade Archipelago rain forests, Madagasc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diospyros
''Diospyros'' is a genus of over 700 species of deciduous and evergreen trees and shrubs. The majority are native to the tropics, with only a few species extending into temperate regions. Individual species valued for their hard, heavy, dark timber, are commonly known as ebony trees, while others are valued for their fruit and known as persimmon trees. Some are useful as ornamentals and many are of local ecological importance. Species of this genus are generally dioecious, with separate male and female plants. Taxonomy and etymology The generic name ''Diospyros'' comes from a Latin name for the Caucasian persimmon ('' D. lotus''), derived from the Greek διόσπυρος : dióspyros, from ''diós'' () and ''pyrós'' (). The Greek name literally means "Zeus's wheat" but more generally intends "divine food" or "divine fruit". Muddled translations sometimes give rise to curious and inappropriate interpretations such as " God's pear" and " Jove's fire". The genus is a large one a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphorbiaceae
Euphorbiaceae, the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of a genus in the family. Most spurges, such as ''Euphorbia paralias'', are herbs, but some, especially in the tropics, are shrubs or trees, such as ''Hevea brasiliensis''. Some, such as ''Euphorbia canariensis'', are succulent and resemble cacti because of convergent evolution. This family has a cosmopolitan global distribution. The greatest diversity of species is in the tropics, however, the Euphorbiaceae also have many species in nontropical areas of all continents except Antarctica. Description The leaves are alternate, seldom opposite, with stipules. They are mainly simple, but where compound, are always palmate, never pinnate. Stipules may be reduced to hairs, glands, or spines, or in succulent species are sometimes absent. The plants can be monoecious or dioecious. The radially symmetrical flowers are unisexual, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arecaceae
The Arecaceae is a family of perennial flowering plants in the monocot order Arecales. Their growth form can be climbers, shrubs, tree-like and stemless plants, all commonly known as palms. Those having a tree-like form are called palm trees. Currently, 181 genera with around 2,600 species are known, most of which are restricted to tropical and subtropical climates. Most palms are distinguished by their large, compound, evergreen leaves, known as fronds, arranged at the top of an unbranched stem. However, palms exhibit an enormous diversity in physical characteristics and inhabit nearly every type of habitat within their range, from rainforests to deserts. Palms are among the best known and most extensively cultivated plant families. They have been important to humans throughout much of history. Many common products and foods are derived from palms. In contemporary times, palms are also widely used in landscaping. In many historical cultures, because of their importance as ... [...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] |
Lauraceae
Lauraceae, or the laurels, is a plant family that includes the true laurel and its closest relatives. This family comprises about 2850 known species in about 45 genera worldwide (Christenhusz & Byng 2016 ). They are dicotyledons, and occur mainly in warm temperate and tropical regions, especially Southeast Asia and South America. Many are aromatic evergreen trees or shrubs, but some, such as ''Sassafras'', are deciduous, or include both deciduous and evergreen trees and shrubs, especially in tropical and temperate climates. The genus ''Cassytha'' is unique in the Lauraceae in that its members are parasitic vines. Most laurels are highly-poisonous. Overview The family has a worldwide distribution in tropical and warm climates. The Lauraceae are important components of tropical forests ranging from low-lying to montane. In several forested regions, Lauraceae are among the top five families in terms of the number of species present. The Lauraceae give their name to habitats know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubiaceae
The Rubiaceae are a family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, or herbs that are recognizable by simple, opposite leaves with interpetiolar stipules and sympetalous actinomorphic flowers. The family contains about 13,500 species in about 620 genera, which makes it the fourth-largest angiosperm family. Rubiaceae has a cosmopolitan distribution; however, the largest species diversity is concentrated in the tropics and subtropics. Economically important genera include ''Coffea'', the source of coffee, '' Cinchona'', the source of the antimalarial alkaloid quinine, ornamental cultivars (''e.g.'', '' Gardenia'', ''Ixora'', ''Pentas''), and historically some dye plants (''e.g.'', ''Rubia''). Description The Rubiaceae are morphologically easily recognizable as a coherent group by a combination of characters: opposite or whorled leaves that are simple and entire, interpetiolar stipules, tubu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
