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Quercus Pinnativenulosa
''Quercus pinnativenulosa'' is a species of oak endemic to Mexico. Description ''Quercus pinnativenulosa'' is a tree which grows from 10 to 15 meters tall, and occasionally to 20 meters. The species is part of the '' Quercus laurina'' group of oaks from Mexico and Central America, which share many similarities and are often confused with one another. They have lanceolate leaves, with a pointed and bristled apex. The upper and lower leaf surfaces are glabrous, or retain only some clustered trichomes in the axils of the secondary veins.Valencia Avalos, Susana (2010). "Notes on the Genus ''Quercus'' in Mexico". ''International Oak Journal'' No. 21 Spring 2010 Range and habitat ''Quercus pinnativenulosa'' is endemic to Mexico. It inhabits the Sierra Madre Oriental and northern Sierra Madre de Oaxaca, in the states of Nuevo León, Tamaulipas, Querétaro, San Luis Potosí, Hidalgo, Veracruz, Puebla, and Oaxaca. The species grows in pine–oak forest, oak forest, and cloud forest (mon ... [...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 an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations. The goals of the Red List are to provide scientifically based information on the status of species and subspecies at a global level, to draw attention to the magnitude and importance of threatened biodiversity, to influence national and international policy and decision-making, and to provide information to guide actions to conserve biological diversity. Major species assessors include BirdLife International, the Institute of Zoology (the research division of the Zoological Society of London), the World Conservation Monitoring Centre, and many Specialist Groups within th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostrya Virginiana
''Ostrya virginiana'', the American hophornbeam, is a species of ''Ostrya'' native to eastern North America, from Nova Scotia west to southern Manitoba and eastern Wyoming, southeast to northern Florida and southwest to eastern Texas. Populations from Mexico and Central America are also regarded as the same species, although some authors prefer to separate them as a distinct species, ''Ostrya guatemalensis''. Other names include eastern hophornbeam, hardhack (in New England), ironwood, and leverwood. Description ''Ostrya virginiana'' (American hophornbeam) is a small deciduous understory tree growing to tall and trunk diameter. The bark is brown to gray-brown, with narrow shaggy plates flaking off, while younger twigs and branches are smoother and gray, with small lenticels. Very young twigs are sparsely fuzzy to thickly hairy; the hairs (trichomes) drop off by the next year. The leaves are ovoid- acute, long and broad, pinnately veined, with a doubly serrated margin. The u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of The Sierra Madre De Oaxaca
Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring ( indigenous) native plants. The corresponding term for animals is ''fauna'', and for fungi, it is ''funga''. Sometimes bacteria and fungi are also referred to as flora as in the terms ''gut flora'' or ''skin flora'' for purposes of specificity. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cloud Forest Flora Of Mexico
In meteorology, a cloud is an aerosol consisting of a visible mass of miniature liquid droplets, ice crystals, frozen crystals, or other particulates, particles, suspended in the atmosphere of a planetary body or similar space. Water or various other chemicals may compose the droplets and crystals. On Earth, clouds are formed as a result of saturation of the air when it is cooled to its dew point, or when it gains sufficient moisture (usually in the form of water vapor) from an adjacent source to raise the dew point to the ambient temperature. Clouds are seen in the Earth's homosphere, which includes the troposphere, stratosphere, and mesosphere. Nephology is the science of clouds, which is undertaken in the cloud physics branch of meteorology. The World Meteorological Organization uses two methods of naming clouds in their respective layers of the homosphere, Latin and common name. Genus types in the troposphere, the atmospheric layer closest to Earth's surface, have Latin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Oaks Of Mexico
Endemism is the state of a species being found only 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 also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or becomin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Loss
Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease in biodiversity and Abundance (ecology), species numbers. Habitat destruction is in fact the leading cause of biodiversity loss and species extinction worldwide. Humans contribute to habitat destruction through the Exploitation of natural resources, use of natural resources, agriculture, industrial production and urbanization (urban sprawl). Other activities include mining, logging and trawling. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, introduced species, introduction of invasive species, ecosystem nutrient depletion, water pollution, water and noise pollution are some examples. Loss of habitat can be preceded by an initial habitat fragmentation. Fragmentation and lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Area Of Occupancy
Area is the measure of a region's size on a surface. The area of a plane region or ''plane area'' refers to the area of a shape or planar lamina, while ''surface area'' refers to the area of an open surface or the boundary of a three-dimensional object. Area can be understood as the amount of material with a given thickness that would be necessary to fashion a model of the shape, or the amount of paint necessary to cover the surface with a single coat. It is the two-dimensional analogue of the length of a curve (a one-dimensional concept) or the volume of a solid (a three-dimensional concept). Two different regions may have the same area (as in squaring the circle); by synecdoche, "area" sometimes is used to refer to the region, as in a "polygonal area". The area of a shape can be measured by comparing the shape to squares of a fixed size. In the International System of Units (SI), the standard unit of area is the square metre (written as m2), which is the area of a square ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carpinus Tropicalis
''Carpinus tropicalis'' is a species of tree native to central and southern Mexico, Guatemala, El Salvador, Honduras, and Nicaragua. Description ''Carpinus tropicalis'' is small to medium-sized tree which grows up to tall, with a trunk up to in diameter.Mario González-Espinosa, Jorge A. Meave, Francisco G. Lorea-Hernández, Guillermo Ibarra-Manríquez and Adrian C. Newton, eds (2011). ''The Red List of Mexican Cloud Forest Trees''. Fauna & Flora International, Cambridge, UK. 2011. Range and habitat In Mexico it is found in scattered locations in the Sierra Madre Oriental, Trans-Mexican Volcanic Belt, Sierra Madre de Oaxaca, southern Sierra Madre Occidental, Sierra Madre del Sur, Chiapas Highlands, and Sierra Madre de Chiapas. It is also found in the highlands of Guatemala, El Salvador, Honduras, and Nicaragua. It is characteristic cloud forest A cloud forest, also called a water forest, primas forest, or tropical montane cloud forest, is a generally tropical or subtr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eugenia Xalapensis
''Eugenia'' is a genus of flowering plants in the myrtle family Myrtaceae. It has a worldwide, although highly uneven, distribution in tropical and subtropical regions. The bulk of the approximately 1,100 species occur in the New World tropics, especially in the eastern Brazil's northern Andes, the Caribbean, and the Atlantic Forest (coastal forests). Other centers of diversity include New Caledonia and Madagascar. Many species in the Old World have received a new classification into the genus ''Syzygium''. All species are woody evergreen trees and shrubs. Several are grown as ornamental plants for their attractive glossy foliage, and a few produce edible fruit that are eaten fresh or used in jams and jellies. Taxonomy The genus was named in honor of Prince Eugene of Savoy. Many species new to science have been and are in the process of being described from these regions. For example, 37 new species of ''Eugenia'' have been described from Mesoamerica in the past few years. At ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornus Excelsa
''Cornus excelsa'' is a species of flowering plant in the dogwood genus (''Cornus''). It is native to mountain forests of Mexico, Guatemala, and Honduras. Description ''Cornus excelsa'' is a tree which grows up to 12 meters tall, with a trunk up to 15 cm in diameter. Range and habitat ''Cornus excelsa'' is found in the mountains of Mexico and northern Central America, including the Sierra Madre Oriental, southern Sierra Madre Occidental, Trans-Mexican Volcanic Belt, Sierra Madre de Oaxaca, Sierra Madre del Sur, and Chiapas Highlands of Mexico, the Sierra Madre de Chiapas of Mexico and Guatemala, and the Guatemalan Highlands The Guatemalan Highlands is an upland region in southern Guatemala which lies between the Sierra Madre de Chiapas to the south and the Petén lowlands to the north. Geographic description The Highlands lie between 6360 ft and 13780 ft and are ... of Guatemala and Honduras. It is typically found in cloud forests, where it is a common early successional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Polymorpha
''Quercus polymorpha'', the Mexican white oak, Monterrey oak or netleaf white oak, is a North American species of oak. It is widespread in Mexico, Guatemala, and Honduras, and known from a single population in the United States (about north of the Río Grande in Val Verde County, Texas) but widely planted as an ornamental. Its acorns are poisonous and unsafe for consumptio Description ''Quercus polymorpha'' is a semi-evergreen, subevergreen tree up to 20 meters (67 feet) tall. The bark is gray or brown. The leaves are elliptical or egg-shaped, up to 15 centimetres (6 inches) long, unlobed or with a few shallow rounded lobes. Range and habitat ''Quercus polymorpha'' ranges across eastern and southern Mexico, in the Sierra Madre Oriental and Sierra Madre de Oaxaca ranges, the Chiapas Highlands of southeastern Mexico, and scattered locations on the Mexican Plateau, Trans-Mexican Volcanic Belt, and Sierra Madre Occidental. It is found in the states of Nuevo León, Tamauli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
