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Magnolia Oaxacensis
''Magnolia oaxacensis'' is a species of flowering plant in the family Magnoliaceae. It is endemic to the Sierra Madre de Oaxaca of Oaxaca state in southern Mexico. Description ''Magnolia oaxacensis'' is a small tree that grows up to 5 meters tall. The species was classed as ''Magnolia schiedeana'', which is native to the Sierra Madre Oriental, until being recognized as a distinct species. Range and habitat ''Magnolia oaxacensis'' is endemic to the Sierra Mazateca, part of the Sierra Madre de Oaxaca in northern Oaxaca state. The species' estimated extent of occurrence (EOO) is about 1000 km2. ''Magnolia oaxacensis'' grows in montane cloud forests from 2,000 to 2,100 meters elevation. It is sometimes found around swampy pond margins. The trees are typically scattered among trees of other species. Conservation ''Magnolia oaxacensis'' has a small range and a decreasing population. It is subject habitat loss from excessive timber harvesting and conversion forest lands to agr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The IUCN Red List Of Threatened Species
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to IUCN the formally stated goals of the Red List are to provide sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extent Of Occurrence
Extent may refer to: Computing * Extent (file systems), a contiguous region of computer storage medium reserved for a file * Extent File System, a discontinued file system implementation named after the contiguous region * Extent, a chunk of storage space logical volume management uses internally to provide various device mappings * Extent, in computer programming, is the period during which a variable has a particular value Other * Extent, a technical description of the wingspan of a bird, bat, or other flying animal * Extent, a writ allowing a creditor to seize or assume temporary ownership of a debtor's property; also, the actual seizure in its execution * Map extent A map extent is the portion of area of a region shown in a map. The limits of a map extent are defined in the coordinate system of the map. In Western culture, map extents usually have a rectangular shape, so they are defined with a minimum and ma ..., the portion of a region shown in a map See also * Ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of The Sierra Madre De Oaxaca
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms ''gut flora'' or ''skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de Phyt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of Northern America
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller palms, tree ferns, bananas, and bamboos are also trees. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some reaching several thousand years old. Trees have been in existence for 370 million years. It is estimated that there are some three trillion mature trees in the world. A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typically co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora Of Mexico
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnolia
''Magnolia'' is a large genus of about 210 to 340The number of species in the genus ''Magnolia'' depends on the taxonomic view that one takes up. Recent molecular and morphological research shows that former genera ''Talauma'', ''Dugandiodendron'', ''Manglietia'', ''Michelia'', ''Elmerrillia'', ''Kmeria'', ''Parakmeria'', ''Pachylarnax'' (and a small number of monospecific genera) all belong within the same genus, ''Magnolia'' s.l. (s.l. = ''sensu lato'': 'in a broad sense', as opposed to s.s. = ''sensu stricto'': 'in a narrow sense'). The genus ''Magnolia'' s.s. contains about 120 species. See the section Nomenclature and classification in this article. flowering plant species in the subfamily Magnolioideae of the family Magnoliaceae. It is named after French botanist Pierre Magnol. ''Magnolia'' is an ancient genus. Appearing before bees evolved, the flowers are theorized to have evolved to encourage pollination by beetles. To avoid damage from pollinating beetles, the carpe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assessing the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 reducing biodiversity and species abundance. Habitat destruction is the leading cause of biodiversity loss. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they are major threats to the survival of endangered species. Activities such as harvesting natural resources, industrial production and urbanization are human contributions to habitat destruction. Pressure from agriculture is the principal human cause. Some others include mining, logging, trawling, and urban sprawl. Habitat destruction is currently considered the primary cause of species extinction worldwide. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Mazateca
The Sierra Mazateca is a mountainous area, part of the Sierra Madre de Oaxaca mountain range, located in the northern part of the state of Oaxaca in Southern Mexico. It is named after the Mazatec people, who are indigenous to the area. Geography Its western part is within the district of Teotitlán District, Oaxaca, Teotitlan del Camino in the Cañada, Oaxaca, Cañada Region; and its eastern part is within the district of Tuxtepec District, Oaxaca, Tuxtepec, in the Papaloapan Region, Oaxaca, Papaloapan Region. The main towns of the region are Huautla de Jimenez, Eloxochitlán de Flores Magón and Jalapa de Díaz. In 1954 the eastern part of the Sierra Mazateca region was submerged by the construction of the Miguel Alemán Dam, now under Miguel Alemán Lake reservoir. See also * {{coord, 18.3800, N, 99.1000, W, source:wikidata, display=title Regions of Oaxaca Sierra Madre de Oaxaca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnoliaceae
The Magnoliaceae () are a flowering plant family, the magnolia family, in the order Magnoliales. It consists of two genera: ''Magnolia'' and ''Liriodendron'' (tulip trees). Unlike most angiosperms, whose flower parts are in whorls (rings), the Magnoliaceae have their stamens and pistils in spirals on a conical receptacle. This arrangement is found in some fossil plants and is believed to be a basal or early condition for angiosperms. The flowers also have parts not distinctly differentiated into sepals and petals, while angiosperms that evolved later tend to have distinctly differentiated sepals and petals. The poorly differentiated perianth parts that occupy both positions are known as tepals. The family has about 219 species and ranges across subtropical eastern North America, Mexico and Central America, the West Indies, tropical South America, southern and eastern India, Sri Lanka, Indochina, Malesia, China, Japan, and Korea. Genera The number of genera in Magnoliaceae i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Madre Oriental
The Sierra Madre Oriental () is a mountain range in northeastern Mexico. The Sierra Madre Oriental is part of the American Cordillera, a chain of mountain ranges (cordillera) that consists of an almost continuous sequence of mountain ranges that form the western "backbone" of North America, Central America, South America, and Antarctica. Setting Spanning the Sierra Madre Oriental runs from the Rio Grande on the border between Coahuila and Texas south through Nuevo León, southwest Tamaulipas, San Luis Potosí, Querétaro, and Hidalgo to northern Puebla, where it joins with the east-west running Eje Volcánico Transversal of central Mexico. The northernmost are the Sierra del Burro and the Sierra del Carmen which reach the border with the United States at the Rio Grande. North of the Rio Grande, the range continues northwestward into Texas and beyond as the Davis and Guadalupe Ranges. Mexico's Gulf Coastal Plain lies to the east of the range, between the mountains and the Gul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnolia Schiedeana
''Magnolia schiedeana'' is a species of flowering plant in the family Magnoliaceae. It is endemic to Mexico, where it occurs along the slopes of the Gulf of Mexico. Description ''Magnolia schiedeana'' is a tree growing up to 25 meters tall. It flowers from April to June.Rico Y, León-Tapia MÁ, Zurita-Solís M, Rodríguez-Gómez F, Vásquez-Morales SG. Influence of Pleistocene climatic oscillations on the phylogeography and demographic history of endemic vulnerable trees (section Magnolia) of the Tropical Montane Cloud Forest in Mexico. PeerJ. 2021 Sep 28;9:e12181. doi: 10.7717/peerj.12181. PMID: 34692249; PMCID: PMC8485838. Range and habitat ''Magnolia schiedeana'' is native to the southern Sierra Madre Oriental in eastern Mexico, in the states of Hidalgo, Puebla, and Veracruz. It is knowns from about 14 scattered populations including Acatlán, Veracruz and the La Cortadura cloud forest of Coatepec, Veracruz. The species' estimated potential forest distribution is 17,411 km2. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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