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Mindoro Racket-tail
The Mindoro racket-tail (''Prioniturus mindorensis'') is a species of parrot in the Psittaculinae family. It was formerly considered conspecific with the blue-crowned racket-tail (''Prioniturus discurus''). It is endemic to the island of Mindoro in the Philippines and it occurs in tropical moist lowland forest. It is threatened by habitat loss and trapping for the cage-bird trade. Description and Taxonomy EBird describes the bird as "A medium-sized parrot of lowland and foothill forest on Mindoro. The two central tail feathers have extended shafts ending in a racket shape. Overall green in color, darker on the back and paler below, with deeper green on the head, a deep blue central crown, and a dark blue hind-crown and edge to the wing. Note the pale bill. Occurs together with Blue-naped Parrot, but is smaller and lacks the thick red bill. Voice includes various squeals and grating calls." Females have shorter "rackets". It eats berries, seeds and nuts. Like all other Racke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Beal Steere
Joseph Beal Steere (9 February 1842 – 7 December 1940) was an American ornithologist. Steere was born in Rollin, Michigan, the son of William Millhouse and Elizabeth Cleghorn (Beal) Steere. He received a B.A. from the University of Michigan in 1868 and a B. of Law in 1870. Shortly after his graduation he entered upon an extensive tour to make collections for the University Museum. His mother's cousin, Rice A. Beal—owner and publisher of the ''Ann Arbor Courier''—agreed to pay for the expedition if Steere would write letters from his journey to be published in the ''Courier''. He spent about eighteen months on the Amazon River and its tributaries, making collections in zoology, botany and archaeology. He crossed the Andes and continued his collections in various parts of Peru. He then sailed for China and the island of Formosa (Taiwan). He went on another scientific expedition in 1887 to the Philippines where he made an extensive collection of birds, shells, and other natu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Near Threatened
A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature as that may be vulnerable to endangerment in the near future, but it does not currently qualify for the threatened status. The IUCN notes the importance of re-evaluating near-threatened taxon at appropriate intervals. The rationale used for near-threatened taxa usually includes the criteria of vulnerable which are plausible or nearly met, such as reduction in numbers or range. Near-threatened species evaluated from 2001 onwards may also be ones which are dependent on conservation efforts to prevent their becoming threatened, whereas before this conservation-dependent species were given a separate category ("Conservation Dependent"). Additionally, the 402 conservation-dependent taxa may also be considered near-threatened. IUCN Categories and Criteria version 2.3 Before 2001, the IUCN used the version 2.3 Categories and Criteria ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Mindoro
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prioniturus
The genus ''Prioniturus'', commonly known as racket-tails, contains nine parrot species found in the Philippines and Indonesia. They are easily distinguished from all other parrots by their elongated central tail feathers with the bare shaft and spatula at the end. Taxonomy The following nine species and several subspecies are recognized in the genus: *''Prioniturus'', Wagler 1832 **''Prioniturus montanus'', Ogilvie-Grant 1895 ( Montane racket-tail)Forshaw (2006). plate 33. **''Prioniturus waterstradti'', Rothschild 1904 (Mindanao racket-tail) ***''Prioniturus waterstradti waterstradti'', Rothschild 1904 ***''Prioniturus waterstradti malindangensis'', Mearns 1909 **''Prioniturus platenae'', Blasius, W 1888 ( Blue-headed racket-tail) **''Prioniturus luconensis'', Steere 1890 ( Green racket-tail) **''Prioniturus discurus'', (Vieillot 1822) ( Blue-crowned racket-tail) ***''Prioniturus discurus discurus'', (Vieillot 1822) ***''Prioniturus discurus whiteheadi'', Salomonsen 1953 **''P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puerto Galera
Puerto Galera, officially the Municipality of Puerto Galera ( tgl, Bayan ng Puerto Galera), is a 1st class municipality in the province of Oriental Mindoro, Philippines. According to the 2020 census, it has a population of 41,961 people. It is mainly accessible from the Southern Luzon gateway port of Batangas by bamboo boats (''bangka'') operated by local regular operators. Seaplane Operator Air Juan Aviation, Inc. flies two daily flights from Manila to Puerto Galera on their Cessna Grand Caravan Seaplanes. History Chinese traders possibly knew the place before the arrival of the Spaniards but there is no evidence of Chinese settlement. The place was likely also known by other Southeast Asian merchants, who would have found it convenient to load and unload trading goods. The state of Ma-i extended to the Puerto Galera area. The bay was a convenient place to shelter ships against bad weather, and a warehouse was built to store supplies and trade black rice from Muelle. In Ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamite
Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay), and Stabilizer (chemistry), stabilizers. It was invented by the Swedish people, Swedish chemist and engineer Alfred Nobel in Geesthacht, Northern Germany, and patented in 1867. It rapidly gained wide-scale use as a more robust alternative to gun powder, black powder. History Dynamite was invented by Swedish chemist Alfred Nobel in the 1860s and was the first safely manageable explosive stronger than black powder. Alfred Nobel's father, Immanuel Nobel, was an industrialist, engineer, and inventor. He built bridges and buildings in Stockholm and founded Sweden's first rubber factory. His construction work inspired him to research new methods of blasting rock that were more effective than black powder. After some bad business deals in Sweden, in 1838 Immanuel moved Nobel family, his family to Saint Petersburg, where Alfred and his brothers were educated privately under Swedish and Russi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slash-and-burn
Slash-and-burn agriculture is a farming method that involves the cutting and burning of plants in a forest or woodland to create a 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 is burned, resulting in a nutrient-rich layer of ash which makes the 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 practice is known as jhum or jhoom. Slash-and-burn is a type of shif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Road Construction
A road is a linear way for the conveyance of traffic that mostly has an improved surface for use by vehicles (motorized and non-motorized) and pedestrians. Unlike streets, the main function of roads is transportation. There are many types of roads, including parkways, avenues, controlled-access highways (freeways, motorways, and expressways), tollways, interstates, highways, thoroughfares, and local roads. The primary features of roads include lanes, sidewalks (pavement), roadways (carriageways), medians, shoulders, verges, bike paths (cycle paths), and shared-use paths. Definitions Historically many roads were simply recognizable routes without any formal construction or some maintenance. The Organization for Economic Co-operation and Development (OECD) defines a road as "a line of communication (travelled way) using a stabilized base other than rails or air strips open to public traffic, primarily for the use of road motor vehicles running on their own wheels", which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, an ... [...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 crisis such as climate change and other forms of environmental degradation. Illegality may also occur during transport, such as illegal processing and export (through fraudulent declaration to customs); the 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 demand for pasture for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montane Forest
Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial factor in shaping plant community, biodiversity, metabolic processes and ecosystem dynamics for montane ecosystems. Dense montane forests are common at moderate elevations, due to moderate temperatures and high rainfall. At higher elevations, the climate is harsher, with lower temperatures and higher winds, preventing the growth of trees and causing the plant community to transition to montane grasslands, shrublands or alpine tundra. Due to the unique climate conditions of montane ecosystems, they contain increased numbers of endemic species. Montane ecosystems also exhibit variation in ecosystem services, which include carbon storage and water supply. Life zones As elevation increases, the climate becomes cooler, due to a decrease in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parrot
Parrots, also known as psittacines (), are birds of the roughly 398 species in 92 genera comprising the order Psittaciformes (), found mostly in tropical and subtropical regions. The order is subdivided into three superfamilies: the Psittacoidea ("true" parrots), the Cacatuoidea (cockatoos), and the Strigopoidea (New Zealand parrots). One-third of all parrot species are threatened by extinction, with higher aggregate extinction risk ( IUCN Red List Index) than any other comparable bird group. Parrots have a generally pantropical distribution with several species inhabiting temperate regions in the Southern Hemisphere, as well. The greatest diversity of parrots is in South America and Australasia. Characteristic features of parrots include a strong, curved bill, an upright stance, strong legs, and clawed zygodactyl feet. Many parrots are vividly coloured, and some are multi-coloured. Most parrots exhibit little or no sexual dimorphism in the visual spectrum. They form the most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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