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Sierra Madre Crow
The Sierra Madre crow (''Corvus sierramadrensis'') is a passerine bird in the crow family Corvidae that is endemic to the island of Luzon in the Philippines. It was formerly considered as conspecific with the Samar crow with the combined taxa known as the small crow. Its natural habitats are primary tropical moist lowland forest. It is now extremely rare and likely endangered. It is threatened by habitat loss and hunting. Description and taxonomy Described as a small and short tailed crow with bare facial skin and a distinctive whirring flight style found in pristine primary forests. Its call is described as a high pitched squeals not typical for a crow. It is very similar to the Samar crow but it has a longer and thicker bill, less intense black plumage and paler gray feathers on the base of its neck. It also differs in voice which is described as three to four throaty squeals and another call described as a buzzy and throaty single note. The Sierra Madre crow was formall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austin L
Austin refers to: Common meanings * Austin, Texas, United States, a city * Austin (given name), a list of people and fictional characters * Austin (surname), a list of people and fictional characters * Austin Motor Company, a British car manufacturer Arts and entertainment * ''Austin'' (album), by Post Malone, 2023 * "Austin" (Blake Shelton song), 2001 * "Austin" (Dasha song), 2023 * ''Austin'' (TV series), a 2024 Australian-British comedy series Businesses and organisations Businesses * American Austin Car Company, short-lived American automobile maker * Austin Automobile Company, short-lived American automobile company * Austin Motor Company, British car manufacturer ** ''Austin'' magazine, produced for the Austin Motor Company by in-house Nuffield Press * Austin Airways, a former Canadian passenger airline and freight carrier * Austin cookies and crackers, a Keebler Company brand Education * Austin College, in Sherman, Texas, U.S. * Austin High School (other) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunda Crow
The Sunda crow (''Corvus enca''), formerly known as the slender-billed crow, is a passerine bird of the family Corvidae, in the genus ''Corvus''. It is found from Malaysia to Borneo. The violet crow has been shown to be distinct genetically and separated as ''Corvus violaceus''. The small crow has been split as ''Corvus samarensis'' and the Palawan crow has also been split as ''Corvus pusillus''. Taxonomy The Sunda crow was formally described in 1821 by the American naturalist Thomas Horsfield based on a specimen collected on the Indonesian island of Java. He coined the binomial name ''Fregilus enca''. The specific epithet ''enca'' is a Javanese word for a crow. Two subspecies are recognised: * ''C. e. compilator'' Richmond, 1903 – Malay Peninsula, Sumatra, west Sumatran islands and Borneo * ''C. e. enca'' ( Horsfield, 1821) – Java and Bali Former subspecies now treated as separate species: * Sulawesi crow (''Corvus celebensis'') * Samar crow (''Corvus samarensis'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corvus
''Corvus'' is a widely distributed genus of passerine birds ranging from medium-sized to large-sized in the family Corvidae. It includes species commonly known as crows, ravens, and rooks. The species commonly encountered in Europe are the carrion crow, hooded crow, common raven, and rook; those discovered later were named "crow" or "raven" chiefly on the basis of their size, crows generally being smaller. The genus name is Latin for "raven". The 46 or so members of this genus occur on all temperate continents except South America, and several islands. The ''Corvus'' genus makes up a third of the species in the family Corvidae. The members appear to have evolved in Asia from the corvid stock, which had evolved in Australia. The collective name for a group of crows is a "flock" or a "murder". Recent research has found some crow species capable of not only tool use, but also tool construction. Crows are now considered to be among the world's most intelligent animals with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illegal Logging
Illegal logging is the harvest, transportation, purchase, or sale of timber in violation of laws. The harvesting procedure itself may be illegal, including using corrupt means to gain access to forests; extraction without permission, or from a protected area; the cutting down of protected species; or the extraction of timber in excess of agreed limits. Illegal logging is a driving force for a number of environmental issues such as deforestation, soil erosion and biodiversity loss which can drive larger-scale environmental crises such as climate change and other forms of environmental degradation. Illegality may also occur during transport, such as illegal processing and export (through smuggling, fraudulent declaration to customs); the tax avoidance, avoidance of taxes and other charges, and fraudulent certification. These acts are often referred to as "wood laundering". Illegal logging is driven by a number of economic forces, such as demand for raw materials, land grabbing and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kalbario–Patapat Natural Park
The Kalbario–Patapat Natural Park is a protected area in the Philippines, located on the Patapat Mountains in the municipalities of Pagudpud and Adams in northern Ilocos Norte province."Protected areas in Region 1" . Protected Areas and Wildlife Bureau. Retrieved on 2012-06-20. Protected area The natural park was established on April 20, 2007, by Proclamation no. 1275 encompassing with a buffer zone of . The park was created under the National Integrated Protected Areas System (NIPAS) of the |
Northern Sierra Madre Natural Park
The Northern Sierra Madre Natural Park is the largest protected area of the Philippines covering the northern range of the Sierra Madre mountains of eastern Luzon. The park is located in the eastern part of the province of Isabela in Cagayan Valley (Region II) containing a total of . It was first declared a wilderness reserve encompassing an area within a radius of Palanan Point known as the Palanan Wilderness Area through Letter of Instructions No. 917-A signed by President Ferdinand Marcos on September 7, 1979. On March 10, 1997, the area was converted into a natural park with the signing of Proclamation No. 978 by President Fidel Ramos. The park is considered the richest in terms of genetic, species and habitat diversity in the Philippines. It is one of the country's ten priority protected areas managed by its own Protected Area Management Board headed by the Regional Executive Director of the Department of Environment and Natural Resources for Region II under the rules s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philippine Jungle Crow
The Philippine jungle crow (''Corvus philippinus'') is a species of crow endemic to the Philippines. It is a generalist and found across a wide range of habitats including near human settlements. It was formerly as subspecies of the Large-billed crow but has now been designated as a distinct species. Description and taxonomy EBird describes this as "Large crow endemic to the Philippines; note its relatively long, daggerlike bill with curved top. Entirely black with some glossiness evident in good lighting. Compare with smaller Palawan, Samar, and Sierra Madre Crows in areas of overlap. A frequent scavenger, feeding on carrion, leftover food from humans, and food stolen from other birds. Often gangs up to attack and chase other birds, especially raptors. Occurs in a wide range of habitats including woodlands, urban landscapes, agricultural fields, and open scrub forests. Call varies, generally a harsh or croaking crow." The Philippine jungle crow was formally described in 1853 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interspecific Competition
Interspecific competition, in ecology, is a form of competition in which individuals of ''different'' species compete for the same resources in an ecosystem (e.g. food or living space). This can be contrasted with mutualism, a type of symbiosis. Competition between members of the same species is called intraspecific competition. If a tree species in a dense forest grows taller than surrounding tree species, it is able to absorb more of the incoming sunlight. However, less sunlight is then available for the trees that are shaded by the taller tree, thus interspecific competition. Leopards and lions can also be in interspecific competition, since both species feed on the same prey, and can be negatively impacted by the presence of the other because they will have less food. Competition is only one of many interacting biotic and abiotic factors that affect community structure. Moreover, competition is not always a straightforward, direct, interaction. Interspecific competition may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slash-and-burn
Slash-and-burn agriculture is a form of shifting cultivation that involves the cutting and burning of plants in a forest or woodland to create a Field (agriculture), field called a swidden. The method begins by cutting down the trees and woody plants in an area. The downed vegetation, or "slash", is then left to dry, usually right before the rainiest part of the year. Then, the Biomass (ecology), biomass is burned, resulting in a nutrient-rich layer of ash which makes the Soil fertility, soil fertile, as well as temporarily eliminating weed and pest species. After about three to five years, the plot's productivity decreases due to depletion of nutrients along with weed and pest invasion, causing the farmers to abandon the field and move to a new area. The time it takes for a swidden to recover depends on the location and can be as little as five years to more than twenty years, after which the plot can be slashed and burned again, repeating the cycle. In Bangladesh and India, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinomial Name
In biology, trinomial nomenclature is the system of names for taxa below the rank of species. These names have three parts. The usage is different in zoology and botany. In zoology In zoological nomenclature, a trinomen (), trinominal name, or ternary name is the name of a subspecies. A trinomen is a name with three parts: generic name, specific name and subspecific name. The first two parts alone form the binomen or species name. All three names are typeset in italics, and only the first letter of the generic name is capitalised. No indicator of rank is included: in zoology, subspecies is the only rank below that of species. For example: "''Buteo jamaicensis borealis'' is one of the subspecies of the red-tailed hawk (''Buteo jamaicensis'')." Examples include ''Gorilla gorilla gorilla'' ( Savage and Wyman, 1847) for the western lowland gorilla and ''Gorilla gorilla diehli'' ( Matschie, 1903) for the Cross River gorilla (which are subspecies of ''Gorilla gorilla'', the wester ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated as subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific name, infraspecific ranks, such as variety (botany), variety, may be named. In bacteriology and virology, under standard International Code of Nomenclature of Prokaryotes, bacterial nomenclature and virus clas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
