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Diademed Sifaka
The diademed sifaka (''Propithecus diadema''), or diademed simpona, is an endangered species of sifaka, one of the lemurs endemic to certain rainforests in eastern Madagascar. Along with the indri, this species is one of the two largest living lemurs, with an average weight of 6.5 kg and a total adult length of approximately 105 centimetres (41 inches), half of which is its tail. Russell Mittermeier, one of the contemporary authorities on lemurs, describes the diademed sifaka as "one of the most colorful and attractive of all the lemurs", having a long and silky coat. ''P. diadema'' is also known by the Malagasy names simpona, simpony and ankomba joby. The term "diademed sifaka" is also used as a group species designation formerly encompassing four distinct subspecies. Description ''P. diadema'' is readily distinguished from all the other lemur species by its characteristic markings and large physical size. Its entire coat is moderately long, silky and luxuriant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Analamazaotra Special Reserve
Analamazaotra National Park is a national park of Madagascar. The park is in the eastern portion of Madagascar's Central Highlands. The neighbouring Analamazaotra Forest Station is a local reforestation effort. It adjoins Andasibe-Mantadia National Park to the north. The reserve is situated in the region Alaotra-Mangoro, close to Moramanga and Andasibe. Analamazaotra National Park is located 27 km from Moramanga and is bordered on the south by National road 2, a secondary road to Andasibe and a railway line between Antananarivo and Toamasina Toamasina (), meaning "like salt" or "salty", unofficially and in French Tamatave, is the capital of the Atsinanana region on the east coast of Madagascar on the Indian Ocean. The city is the chief seaport of the country, situated northeast of it .... Conservation Analamazaotra Special Reserve, also known as Périnet-Analamazaotra, was established in 1970. In 2015 the special reserve was combined with the adjacent Analamazaotra Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Throat
In vertebrate anatomy, the throat is the front part of the neck, internally positioned in front of the vertebrae. It contains the pharynx and larynx. An important section of it is the epiglottis, separating the esophagus from the trachea (windpipe), preventing food and drinks being inhaled into the lungs. The throat contains various blood vessels, pharyngeal muscles, the nasopharyngeal tonsil, the tonsils, the palatine uvula, the trachea, the esophagus, and the vocal cords. Mammal throats consist of two bones, the hyoid bone and the clavicle. The "throat" is sometimes thought to be synonymous for the fauces. It works with the mouth, ears and nose, as well as a number of other parts of the body. Its pharynx is connected to the mouth, allowing speech to occur, and food and liquid to pass down the throat. It is joined to the nose by the nasopharynx at the top of the throat, and to the ear by its Eustachian tube. The throat's trachea carries inhaled air to the bronchi of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scent Gland
Scent gland are exocrine glands found in most mammals. They produce semi-viscous secretions which contain pheromones and other semiochemical compounds. These odor-messengers indicate information such as status, territorial marking, mood, and sexual behaviour. The odor may be subliminal—not consciously detectable. Though it is not their primary function, the salivary glands may also function as scent glands in some animals. In even-toed ungulates The even-toed ungulates (Artiodactyla) have many specialized skin glands, the secretions of which are involved in semiochemical communication. These glands include the sudoriferous glands (located on the forehead, between the antlers and eyes), the preorbital glands (extending from the medial canthus of each eye), the nasal glands (located inside the nostrils), the interdigital glands (located between the toes), the preputial gland (located inside the foreskin of the penis), the metatarsal glands (located outside of the hind le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsinjoarivo
Tsinjoarivo is a town and commune in Madagascar. It belongs to the district of Fenoarivobe, which is a part of Bongolava Region. The population of the commune was estimated to be approximately 27,934 in 2018.TROISIEME RECENSEMENT GENERAL DE LA POPULATION ET DE L’HABITATION Primary and junior level secondary education are available in town. The majority 95% of the population of the commune are farmers. The most important crop is rice, while other important products are maize and cassava ''Manihot esculenta'', commonly called cassava (), manioc, or yuca (among numerous regional names), is a woody shrub of the spurge family, Euphorbiaceae, native to South America. Although a perennial plant, cassava is extensively cultivated a .... Services provide employment for 5% of the population. References and notes Populated places in Bongolava {{Bongolava-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antananarivo
Antananarivo ( French: ''Tananarive'', ), also known by its colonial shorthand form Tana, is the capital and largest city of Madagascar. The administrative area of the city, known as Antananarivo-Renivohitra ("Antananarivo-Mother Hill" or "Antananarivo-Capital"), is the capital of Analamanga region. The city sits at above sea level in the center of the island, the highest national capital by elevation among the island countries. It has been the country's largest population center since at least the 18th century. The presidency, National Assembly, Senate and Supreme Court are located there, as are 21 diplomatic missions and the headquarters of many national and international businesses and NGOs. It has more universities, nightclubs, art venues, and medical services than any city on the island. Several national and local sports teams, including the championship-winning national rugby team, the Makis are based here. Antananarivo was historically the capital of the Merina peop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mantadia National Park
Andasibe-Mantadia National Park is a 155 square kilometre protected area, located about 150 km east of Antananarivo, consisting principally of primary growth forest in Alaotra-Mangoro Region in eastern Madagascar. The park's elevation ranges from 800 to 1260 meters, with a humid climate. Average annual precipitation is 1700 mm, with rainfall on 210 days of each year. This rainforest is habitat to a vast species biodiversity, including many endemic rare species and endangered species, including 11 lemur species. The park's two component parts are Mantadia National Park and Analamazoatra Reserve, which is best known for its population of Madagascar's largest lemur, the indri. The national park was nominated in 2007 to become part of the World Heritage Site of Rainforests of the Atsinanana. However, its forests were not selected for the final list. This is one of the easiest parks in Madagascar to visit from the capital city, Antananarivo, with a 3-hour drive eas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evolution
Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes, which are passed on from parent to offspring during reproduction. Variation tends to exist within any given population as a result of genetic mutation and recombination. Evolution occurs when evolutionary processes such as natural selection (including sexual selection) and genetic drift act on this variation, resulting in certain characteristics becoming more common or more rare within a population. The evolutionary pressures that determine whether a characteristic is common or rare within a population constantly change, resulting in a change in heritable characteristics arising over successive generations. It is this process of evolution that has given rise to biodiversity at every level of biological organisation, including the levels of species, individual organisms, and molecules. The theory of evol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milne-Edwards' Sifaka
Milne-Edwards's sifaka (''Propithecus edwardsi''), or Milne-Edwards's simpona, is a large arboreal, diurnal lemur endemic to the eastern coastal rainforest of Madagascar. Milne-Edwards's sifaka is characterized by a black body with a light-colored "saddle" on the lower part of its back. It is closely related to the diademed sifaka, and was until recently considered a subspecies of it. Like all sifakas, it is a primate in the family Indriidae. Conservation status Milne-Edwards's sifaka is categorized as endangered by the IUCN, and is listed in CITES Appendix I. As of 2008 there were estimated to be approximately 28600 individuals left with only about 3500 of those remaining in protected areas. It remains threatened by habitat loss, hunting and may be sensitive to a changing climate. Anatomy and physiology Milne-Edwards's sifaka is the second largest species in ''Propithecus'', and one of the larger diurnal lemur species overall. The average weight of a male Milne-Edwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cline (population Genetics)
In biology, a cline (from the Greek κλίνειν ''klinein'', meaning "to lean") is a measurable gradient in a single character (or biological trait) of a species across its geographical range. First coined by Julian Huxley in 1938, the "character" of the cline referred to is usually genetic (e.g. allele frequency, blood type), or phenotypic (e.g. body size, skin pigmentation). Clines can show smooth, continuous gradation in a character, or they may show more abrupt changes in the trait from one geographic region to the next. A cline refers to a spatial gradient in a specific, singular trait, rather than a collection of traits; a single population can therefore have as many clines as it has traits, at least in principle. Additionally, Huxley recognised that these multiple independent clines may not act in concordance with each other. For example, it has been observed that in Australia, birds generally become smaller the further towards the north of the country they are found. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onive River
The Onive River is a river in eastern Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa .... It flows down from the Ankaratra massif, and is the largest tributary of the Mangoro River.Campbell, GwynnDavid Griffiths and the Missionary "History of Madagascar" p. 488-89 ( Brill 2012) (citing Aldegheri, Marius. ''The Rivers and Streams on Madagascar'', in Battistini, Rene & G. Richard-Vindard (ed.), ''Biogeography and Ecology in Madagascar'' (1972)) Notable waterfalls, with a 30m vertical drop, are located southwest of the village of Tsinjoarivo.Madagascar, 2008-2009 p. 245 ( [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mananara River
The Mananara River is one of the main rivers in eastern Madagascar. Its mouth is located at the Indian Ocean near the city of Vangaindrano in the Atsimo-Atsinanana Atsimo-Atsinanana (South East) is a region in Madagascar. Its capital is Farafangana. The region used to be part of the Fianarantsoa Province. The region extends along the southern part of the east coast of Madagascar. It is bordered by Vatov ... region. The Mananara South is formed by the merger of the Menarahaka, Itomampy, and Ionaivo. The Ionaivo rises on the slopes of Tsimahamory peak, at an approximate elevation of 1500m. The Itomampy rises not far from the Ionaivo, about 40 km from the Indian Ocean, at approximately 1600m, and runs north until it joins the Ionaivo. The Menarahaka rises in the Andringitra massif, at approximately 2000m elevation. It is joined by the Sahambano before joining the Ionaivo.Aldegheri, Marius. ''Rivers and Streams on Madagascar'', in Battistini, Rene & G. Richard-Vindard ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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