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Beddomeia Launcestonensis
''Beddomeia launcestonensis'' is a species of very small freshwater snail that has a gill and an Operculum (gastropod), operculum, an aquatic animal, aquatic operculate gastropod mollusk in the family Hydrobiidae. This species is Endemism, endemic to Australia. The ''Beddomeia launcestonensis'' is a freshwater snail of the Beddomeia genus, the most diverse of all freshwater families of freshwater molluscs, and Hydrobiidae family. There are approximately 67 species within this hydrobiid and four distinct genera within this ''Beddomeia'' complex. Three species in the genera (''Nanocochlea''; three taxa, ''Phrantela''; thirteen taxa, and ''Beddomeia''; forty-seven taxa) are found in Tasmania, whereas the fourth genus (''Victodrobia''; four taxa) is endemic to Victoria (Australia), Victoria. Only three of these taxa have been given subspecific status, whereas fifty-nine of the species-group taxa are newly described. These species-group taxa are segregated through the use of morpholog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forestry
Forestry is the science and craft of creating, managing, planting, using, conserving and repairing forests, woodlands, and associated resources for human and environmental benefits. Forestry is practiced in plantations and natural stands. The science of forestry has elements that belong to the biological, physical, social, political and managerial sciences. Forest management play essential role of creation and modification of habitats and affect ecosystem services provisioning. Modern forestry generally embraces a broad range of concerns, in what is known as multiple-use management, including: the provision of timber, fuel wood, wildlife habitat, natural water quality management, recreation, landscape and community protection, employment, aesthetically appealing landscapes, biodiversity management, watershed management, erosion control, and preserving forests as " sinks" for atmospheric carbon dioxide. Forest ecosystems have come to be seen as the most important componen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biotic Component
An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue. By feeding on plants and on one another, animals play an important role in the movement of matter and energy through the system. They also influence the quantity of plant and microbial biomass present. By breaking down dead organic matter, decomposers release carbon back to the atmosphere and facilitate nutrient cycling by converting nutrients stored in dead biomass back to a form that can be readily used by plants and microbes. Ecosystems are controlled by external and internal factors. External factors such as climate, parent material which forms the soil and topography, control the overall structure of an ecosystem but are not themselves influenced by the ecosystem. Interna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abiotic
In biology and ecology, abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. Abiotic factors and the phenomena associated with them underpin biology as a whole. They affect a plethora of species, in all forms of environmental conditions, such as marine or land animals. Humans can make or change abiotic factors in a species' environment. For instance, fertilizers can affect a snail's habitat, or the greenhouse gases which humans utilize can change marine pH levels. Abiotic components include physical conditions and non-living resources that affect living organisms in terms of growth, maintenance, and reproduction. Resources are distinguished as substances or objects in the environment required by one organism and consumed or otherwise made unavailable for use by other organisms. Component degradation of a substance occurs by chemical or physical processes, e.g. hydrolysis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Trevallyn
The Trevallyn Dam is a dam on the South Esk River in Launceston, Tasmania, Australia and is used to provide water for hydroelectricity. The dam was completed in 1955 as part of the Trevallyn Hydro Electric Scheme and now holds the waters of Lake Trevallyn. Specifications Lake Trevallyn is a concrete gravity dam built on Dolerite bedrock. The spillway height is 26.8 metres and the dam wall is 177 metres long. The lake has a surface area of 1.48 km² and storage capacity of 12.33 million m³. ANCOLD lists Trevallyn Dam as having a dam wall height of 33 metres and the total volume of the wall as 61,000 cubic metres. The dam diverts water to the Trevallyn Power Station through a 3.2 km tunnel. Lake Trevallyn Lake Trevallyn is the long, narrow lake created by the dam and extends as far as Hadspen where the first rapids begin at the junction of the Meander and South Esk Rivers. The widest point on the lake is at Stephenson's Bay where it reaches 390m wide. Launceston's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cataract Gorge
The Cataract Gorge is a river gorge in Launceston, Tasmania, Australia, approximately 1.5 km from the city centre. It is one of the region's premier tourist attractions with Cataract Gorge boat tripleaving from Home Point Parade. It is found at the lower section of the South Esk River. History The earliest known European visitor to the site was William Collins, who discovered its entrance in 1804. A pathway, known as the King’s Bridge-Cataract Walk, and originally built by volunteers in the 1890s, runs along the north bank of the Cataract Gorge, and is a popular tourist destination. The original toll house at which pedestrians had to pay to enter the walk can still be seen near King's Bridge on the northern edge of the gorge. The chairlift is the longest single-span chairlift in the world, with the longest span being . The chairlift, built in 1972, has a total span of . In the past, there was a power station at Duck Reach, about from a suspension bridge which was b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bursa Copulatrix
( grc-gre, Προῦσα, Proûsa, Latin: Prusa, ota, بورسه, Arabic:بورصة) is a city in northwestern Turkey and the administrative center of Bursa Province. The fourth-most populous city in Turkey and second-most populous in the Marmara Region, Bursa is one of the industrial centers of the country. Most of Turkey's automotive production takes place in Bursa. As of 2019, the Metropolitan Province was home to 3,056,120 inhabitants, 2,161,990 of whom lived in the 3 city urban districts (Osmangazi, Yildirim and Nilufer) plus Gursu and Kestel, largely conurbated. Bursa was the first major and second overall capital of the Ottoman State between 1335 and 1363. The city was referred to as (, meaning "God's Gift" in Ottoman Turkish, a name of Persian origin) during the Ottoman period, while a more recent nickname is ("") in reference to the parks and gardens located across its urban fabric, as well as to the vast and richly varied forests of the surrounding region ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyriform Prostate Gland
Piriform, sometimes ''pyriform'', means pear-shaped (from Latin ''pirum'' "pear" and ''forma'' "shape"). It may also refer to: Going pear-shaped * Going wrong or going pear-shaped Anatomy * Piriform aperture, more commonly known as anterior nasal aperture * Piriform cortex, a region in the brain * Piriformis muscle, a gluteal muscle * Piriformis syndrome, a neuromuscular disorder in which piriformis muscle compresses the sciatic nerve * Piriform sinus, piriform recess or piriform fossa, synonyms referring to one of the four sites of the hypopharynx * the pear female body shape Other uses * Piriform (company), a software company * Piriform, in hydrostatic equilibrium In fluid mechanics, hydrostatic equilibrium (hydrostatic balance, hydrostasy) is the condition of a fluid or plastic solid at rest, which occurs when external forces, such as gravity, are balanced by a pressure-gradient force. In the planetary ... * Pyriform, a teapot shape introduced in the 18th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypobranchial Gland
The hypobranchial gland is a glandular structure which is part of the anatomy of many mollusks, including several different families of gastropods, and also many protobranch bivalves. This gland produces mucus as well as biologically active compounds. The cephalopod ink sac is a modified hypobranchial gland. Anatomy and function ;Gastropods The hypobranchial gland is found in many sea snails, including those in the families Haliotidae, Buccinidae, Mitridae and Costellariidae. It usually presents itself as a thickening of the tissue located in the roof of the animal's mantle cavity. This is in association with parts of the aquatic mollusk anatomy that perform sediment consolidation in these organisms. However, this gland is absent in all terrestrial gastropods except the Neritacea. Its morphology, however, is variable between different groups of snails. Glands with similar functions are present in the Nuculidae, Solenomyidae, Monia, Patellacea, and Loritcata. In the Haliotida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austropyrgus
''Austropyrgus'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the Hydrobiidae family. ''Austropyrgus'' species are endemic to Australia, where they are found in virtually all freshwater habitats, from high mountain streams to isolated springs in the arid zone. Species With 76 recognized species, ''Austropyrgus'' is the largest genus of Australian freshwater molluscs and is the most widespread of the Australian freshwater ''Hydrobiidae'' genera. ''Austropyrgus'' species include: * ''Austropyrgus abercrombiensis'' Clark, Miller & Ponder, 2003 * ''Austropyrgus angasi'' (E. A. Smith, 1882) * ''Austropyrgus aslini'' Clark, Miller & Ponder, 2003 * ''Austropyrgus avius'' Clark, Miller & Ponder, 2003 * ''Austropyrgus buchanensis'' Clark, Miller & Ponder, 2003 * ''Austropyrgus bullerensis'' Clark, Miller & Ponder, 2003 * '' Austropyrgus bungoniensis'' Clark, Miller & Ponder, 2003 * ''Austropyrgus colensis'' Clark, Miller & Po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudotricula
''Pseudotricula'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Tateidae.MolluscaBase eds. (2022). MolluscaBase. Pseudotricula Ponder, 1992. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1057333 on 2022-02-25 The genus was first described in 1992 by Winston Ponder. Species * ''Pseudotricula arthurclarkei'' Ponder, S. A. Clark, Eberhard & Studdert, 2005 * ''Pseudotricula auriforma'' Ponder, S. A. Clark, Eberhard & Studdert, 2005 * ''Pseudotricula conica'' Ponder, S. A. Clark, Eberhard & Studdert, 2005 * ''Pseudotricula eberhardi'' Ponder, 1992 * ''Pseudotricula elongata'' Ponder, S. A. Clark, Eberhard & Studdert, 2005 * ''Pseudotricula expandolabra'' Ponder, S. A. Clark, Eberhard & Studdert, 2005 * ''Pseudotricula progenitor ''Pseudotricula'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
