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Otto's Sportive Lemur
Otto's sportive lemur (''Lepilemur otto''), or the Ambodimahabibo sportive lemur, is a sportive lemur endemic to Madagascar. Like all members of the genus Lepilemur, it is solitary, nocturnal and largely folivorous. It is threatened by habitat loss and hunting. Taxonomy and phylogenetics Otto's sportive lemur was described in 2007 from tissue samples, hair samples and morphometrics collected from live individuals in 2004. The species was recognized as new to science based primarily through genetic evidence. The specific epithet ''otto'' honors Michael Otto for his monetary donations to lemur research and conservation. Genetic analyses show Otto's sportive lemur to be the outgroup to a clade containing Grewcock's sportive lemur and Milne-Edwards' sportive lemur. Description Otto's sportive lemur has a grey-brown back and a grey to creamy underside. A dark stripe runs from the uper skull down the spine and ending before the tail. The tail varies from grey-brown to deep brown, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sportive Lemur
The sportive lemurs are the medium-sized primates that make up the family Lepilemuridae. The family consists of only one extant genus, ''Lepilemur''. They are closely related to the other lemurs and exclusively live on the island of Madagascar. For a time, this family was named Megaladapidae, but the current name was given precedence since the extinct genus '' Megaladapis'' was removed from the family. Etymology French zoologist Isidore Geoffroy Saint-Hilaire first described the genus ''Lepilemur'' in 1851, prefixing the existing genus ''Lemur'' with the Latin ''lepidus'' ("pleasant" or "pretty"). However, it was erroneously spelled—a mistake later authors unsuccessfully attempted to correct to ''Lepidolemur''. Members of the monogeneric family Lepilemuridae are referred to as either sportive or weasel lemurs. "Sportive lemur", which is more commonly used, was coined by Henry Ogg Forbes in 1894. Though he did not explain the name choice, he did mention the agility of ''Lepile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally associated. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the ''International Code of Nomenclature for algae, fungi, and plants'' (ICN), the scientific name of every taxon is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Fragmentation
Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay. Causes of habitat fragmentation include geological processes that slowly alter the layout of the physical environment (suspected of being one of the major causes of speciation), and human activity such as land conversion, which can alter the environment much faster and causes the extinction of many species. More specifically, habitat fragmentation is a process by which large and contiguous habitats get divided into smaller, isolated patches of habitats. Definition The term habitat fragmentation includes five discrete phenomena: * Reduction in the total area of the habitat * Decrease of the interior: edge ratio * Isolation of one habitat fragment from other areas of habitat * Breaking up of one patch of habitat into several smaller patches * Decrease in the average size of each patch of habit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest Corridor Of Bongolava
A forest is an ecosystem characterized by a dense community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' Food and Agriculture Organization (FAO) defines a forest as, "Land spanning more than 0.5 hectares with trees higher than 5 meters and a canopy cover of more than 10 percent, or trees able to reach these thresholds ''in situ''. It does not include land that is predominantly under agricultural or urban use." Using this definition, '' Global Forest Resources Assessment 2020'' found that forests covered , or approximately 31 percent of the world's land area in 2020. Forests are the largest terrestrial ecosystems of Earth by area, and are found around the globe. 45 percent of forest land is in the tropical latitudes. The next largest share of forests are found in subarctic climates, followed by temperate, and subtropic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shifting Cultivation
Shifting cultivation is an agricultural system in which plots of land are cultivated temporarily, then abandoned while post-disturbance fallow vegetation is allowed to freely grow while the cultivator moves on to another plot. The period of cultivation is usually terminated when the soil shows signs of exhaustion or, more commonly, when the field is overrun by weeds. The period of time during which the field is cultivated is usually shorter than the period over which the land is allowed to regenerate by lying fallow. This technique is often used in LEDCs (Less Economically Developed Countries) or LICs (Low Income Countries). In some areas, cultivators use a practice of slash-and-burn as one element of their farming cycle. Others employ land clearing without any burning, and some cultivators are purely human migration, migratory and do not use any cyclical method on a given plot. Sometimes no slashing at all is needed where regrowth is purely of grasses, an outcome not uncommon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sportive Lemur
The sportive lemurs are the medium-sized primates that make up the family Lepilemuridae. The family consists of only one extant genus, ''Lepilemur''. They are closely related to the other lemurs and exclusively live on the island of Madagascar. For a time, this family was named Megaladapidae, but the current name was given precedence since the extinct genus '' Megaladapis'' was removed from the family. Etymology French zoologist Isidore Geoffroy Saint-Hilaire first described the genus ''Lepilemur'' in 1851, prefixing the existing genus ''Lemur'' with the Latin ''lepidus'' ("pleasant" or "pretty"). However, it was erroneously spelled—a mistake later authors unsuccessfully attempted to correct to ''Lepidolemur''. Members of the monogeneric family Lepilemuridae are referred to as either sportive or weasel lemurs. "Sportive lemur", which is more commonly used, was coined by Henry Ogg Forbes in 1894. Though he did not explain the name choice, he did mention the agility of ''Lepile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sofia River
The Sofia is a river of northwestern Madagascar. It flows through the Sofia Region. The source is at the Tsaratanana Massif at an altitude of 1784 metres. It has a length of . Its mouth is in the Indian Ocean in the Boriziny-Vaovao District (Port-Bergé). References {{Rivers of Madagascar Rivers of Madagascar Sofia Region ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mahajamba River
The Mahajamba is a river of northern Madagascar. It flows through Ankarafantsika National Park. The river is surrounded in mangrove A mangrove is a shrub or tree that grows mainly in coastal saline water, saline or brackish water. Mangroves grow in an equatorial climate, typically along coastlines and tidal rivers. They have particular adaptations to take in extra oxygen a ...s. References Rivers of Madagascar {{Madagascar-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ambodimahabibo
Ambodimahabibo is a town and commune () in Madagascar. It belongs to the district of Boriziny, which is a part of Sofia Region. The population of the commune was estimated to be approximately 9,000 in 2001 commune census. Primary and junior level secondary education are available in town. The majority 98% of the population of the commune are farmers. The most important crop is rice, while other important products are maize and cassava ''Manihot esculenta'', common name, commonly called cassava, manioc, or yuca (among numerous regional names), is a woody shrub of the spurge family, Euphorbiaceae, native to South America, from Brazil, Paraguay and parts of the Andes. Although .... Services provide employment for 2% of the population. References and notes Populated places in Sofia Region {{SofiaMG-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical And Subtropical Dry Broadleaf Forests
The tropical and subtropical dry broadleaf forest is a habitat (ecology), habitat type defined by the World Wide Fund for Nature and is located at tropical and subtropical latitudes. Though these forests occur in climates that are warm year-round, and may receive several hundred millimeters of rain per year, they have long dry seasons that last several months and vary with geographic location. These seasonal droughts have great impact on all living things in the forest. Deciduous trees predominate in most of these forests, and during the drought a leafless period occurs, which varies with species type. Because trees lose moisture through their leaves, the shedding of leaves allows trees such as teak and mountain ebony to conserve water during dry periods. The newly bare trees open up the canopy (forest), canopy layer, enabling sunlight to reach ground level and facilitate the growth of thick underbrush. Trees on moister sites and those with access to ground water tend to be ever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madagascar
Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, fourth largest island, the List of island countries, second-largest island country, and the List of countries and dependencies by area, 46th largest country overall. Its capital and List of cities in Madagascar, largest city is Antananarivo. Following the prehistoric breakup of the supercontinent Gondwana, Madagascar split from Africa during the Early Jurassic period, around 180 million years ago, and separated from the Indian subcontinent approximately 90 million years ago. This isolation allowed native plants and animals to evolve in relative seclusion; as a result, Madagascar is a biodiversity hotspot and one of the world's 17 megadiverse countries, with over 90% of its wildlife of Madagascar, wildlife being endemic. The island has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D-loop
In molecular biology, a displacement loop or D-loop is a DNA structure where the two strands of a double-stranded DNA molecule are separated for a stretch and held apart by a third strand of DNA. An R-loop is similar to a D-loop, but in that case the third strand is RNA rather than DNA. The third strand has a base sequence which is complementary to one of the main strands and pairs with it, thus displacing the other complementary main strand in the region. Within that region the structure is thus a form of triple-stranded DNA. A diagram in the paper introducing the term illustrated the D-loop with a shape resembling a capital "D", where the displaced strand formed the loop of the "D". D-loops occur in a number of particular situations, including in DNA repair, in telomeres, and as a semi-stable structure in mitochondrial circular DNA molecules. In mitochondria Researchers at Caltech discovered in 1971 that the circular mitochondrial DNA from growing cells included a sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
