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Dawson's Burrowing Bee
''Amegilla dawsoni'', sometimes called the Dawson's burrowing bee, is a species of bee that nests by the thousands in arid claypans in Western Australia. It is a long tongued bee, of the tribe Anthophorini and genus ''Amegilla,'' the second largest genus in Anthophorini. The Dawson's burrowing bee is one of the largest Australian bee species, growing to be in length and in wingspan. With the exception of their faces, the bees are covered in brown fur, if male, or brown and white fur if female. They are similar in size and coloring to Australian carpenter bees. They are known solitary nesters. Though each female bee will build her own nest, they aggregate in large communities that give the appearance of colonies. Their nests are dug into the ground, with individual capsules created for each brood cell. Each female will only breed once in their breeding season. The males of the species are dimorphic, based on brood provisioning strategies during development. The larger males ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claypan
Claypan is a dense, compact, slowly permeable layer in the subsoil. It has a much higher clay content than the overlying material, from which it is separated by a sharply defined boundary. The dense structure restricts root growth and water infiltration. Therefore, a perched water table might form on top of the claypan. In the Canadian classification system, claypan is defined as a clay-enriched illuvial B (Bt) horizon. Location Claypan is present in a wide area of the central United States (about 4 million ha) across multiple states such as Kansas, Oklahoma, and Illinois. It can also be found in Australia throughout the south-west Queensland. Formation Claypan is formed in different parent materials depending on geological locations, such as floodplains. The formation of the claypan relates to a lack of vegetation coverage, soil particle size distribution, and high rainfall. The lack of vegetation coverage makes soil become more susceptible to raindrop attacks. When the raindro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tricosane
Higher alkanes are alkanes having nine or more carbon atoms. Nonane is the lightest alkane to have a flash point above 25 °C, and is not classified as dangerously flammable. The term ''higher alkanes'' is sometimes used literally as "alkanes with a higher number of carbon atoms". One definition distinguishes the higher alkanes as the n-alkanes that are solid under natural conditions. Uses Alkanes from nonane to hexadecane (those alkanes with nine to sixteen carbon atoms) are liquids of higher viscosity, which are less suitable for use in gasoline. They form instead the major part of diesel and aviation fuel. Diesel fuels are characterised by their cetane number, cetane being an older name for hexadecane. However the higher melting points of these alkanes can cause problems at low temperatures and in polar regions, where the fuel becomes too thick to flow correctly. Mixtures of the normal alkanes are used as boiling point standards for simulated distillation by gas chromat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apinae
The Apinae are the subfamily that includes the majority of bees in the family Apidae. It includes the familiar " corbiculate" (pollen basket) bees—bumblebees, honey bees, orchid bees, stingless bees, Africanized bees, and the extinct genus ''Euglossopteryx''. It also includes all but two of the groups (excluding Nomadinae and Xylocopinae) that were previously classified in the family Anthophoridae. Most species in the subfamily (other than honey bees, bumblebees, and stingless bees) are solitary, though several of the tribes are entirely kleptoparasitic, such as the Ericrocidini, Isepeolini, Melectini, Osirini, Protepeolini, and Rhathymini. Behaviors Certain behaviors are known from members of the Apinae that are rarely seen in other bees, including the habit of males forming "sleeping aggregations" on vegetation - several males gathering on a single plant in the evening, grasping a plant with their jaws and resting there through the night (sometimes held in place only by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miltogramminae
The Miltogramminae are a subfamily of the family Sarcophagidae. They are kleptoparasites of solitary bees and solitary wasps (not eusocial species). Genera *'' Aenigmetopia'' Malloch, 1930 *'' Alusomyia'' Villeneuve, 1933 *'' Ambouya'' Villeneuve, 1935 *'' Amobia'' Robineau-Desvoidy, 1830 *'' Apodacra'' Macquart, 1854 *'' Beludzhia'' Rohdendorf, 1935 *'' Chaetapodacra'' Rohdendorf, 1935 *'' Chivamyia'' Pape, 1996 *'' Chorezmomyia'' Rohdendorf, 1935 *'' Craticulina'' Bezzi, 1906 *'' Dolichotachina'' Villeneuve, 1913 *'' Eremasiomyia'' Rohdendorf, 1927 *'' Eumacronychia'' Townsend, 1892 *'' Euphyto'' Townsend, 1908 *'' Gymnoprosopa'' Townsend, 1892 *'' Gymnopsidia'' Shewell, 1987 *'' Hoplacephala'' Macquart, 1846 *'' Khowaba'' Pape, 1991 *'' Lamprometopia'' Macquart, 1846 *'' Macronychia'' Rondani, 1859 *'' Medomyia'' Rohdendorf, 1926 *'' Mesomelena'' Rondani, 1859 *'' Metopia'' Meigen, 1803 *'' Metopodia'' Brauer & von Bergenstamm, 1889 *'' Miltogramma'' M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichodesma
''Trichodesma'' is a genus of flowering plants in the borage family, Boraginaceae. There are about 40 to 45 species distributed in tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ... and subtropical regions of Africa, Asia, and Australia.''Trichodesma''. Flora of China.''Trichodesma''. Flora of Pakistan. Species include: *'' Trichodesma africanum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solanum
''Solanum'' is a large and diverse genus of flowering plants, which include three food crops of high economic importance: the potato, the tomato and the eggplant (aubergine, brinjal). It is the largest genus in the nightshade family Solanaceae, comprising around 1,500 species. It also contains the so-called horse nettles (unrelated to the genus of true nettles, ''Urtica''), as well as numerous plants cultivated for their ornamental flowers and fruit. ''Solanum'' species show a wide range of growth habits, such as annuals and perennials, vines, subshrubs, shrubs, and small trees. Many formerly independent genera like '' Lycopersicon'' (the tomatoes) and ''Cyphomandra'' are now included in ''Solanum'' as subgenera or sections. Thus, the genus today contains roughly 1,500–2,000 species. Name The generic name was first used by Pliny the Elder (AD 23–79) for a plant also known as , most likely ''S. nigrum''. Its derivation is uncertain, possibly stemming from the Latin word ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eremophila (plant)
''Eremophila'' is a genus of more than 260 species of plants in the figwort family, Scrophulariaceae all of which are endemic to mainland Australia. (One species, '' Eremophila debilis'' is thought to be a recent arrival in New Zealand). Eremophilas are widespread in the arid areas of Australia, especially Western Australia and range in size from low-growing shrubs to small trees. The petals are joined, at least at their bases, into a tube with the upper petals different in size and shape from the lower ones. Some species have common names including emu bush, poverty bush or fuchsia bush, reflecting the belief that emus eat the fruit, their arid environment or a superficial resemblance to the flowers of plants in the genus ''Fuchsia''. Description Eremophilas vary in size and habit from low, prostrate shrubs such as '' E. serpens'' to small trees in the case of '' E. bignoniiflora''. Leaf size and shape is also variable but the leaves are usually small and are often shiny or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassia (genus)
''Cassia'' is a genus of flowering plants in the legume family, Fabaceae, and the subfamily Caesalpinioideae. Species are known commonly as cassias. Cassia is also the English common name of some species in the genus ''Cinnamomum'' of the family Lauraceae. Species of the genera '' Senna'' and ''Chamaecrista'' were previously included in ''Cassia''. ''Cassia'' now generally includes the largest species of the legume subtribe Cassiinae, usually mid-sized trees. Ecology ''Cassia'' species occur in a range of climates. Some can be utilized widely as ornamental plants. They have been used in reforestation projects, and species from desert climates can be used to prevent desertification. ''Cassia'' species are used as food plants by the caterpillars of many lepidopteran taxa. For example, the skipper ''Astraptes fulgerator'' and the pierids ''Catopsilia pomona'' and '' C. pyranthe'' are all seen on ''Cassia fistula''. The latter utilizes several other cassias, as well. The plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heptacosane
Higher alkanes are alkanes having nine or more carbon atoms. Nonane is the lightest alkane to have a flash point above 25 °C, and is not classified as dangerously flammable. The term ''higher alkanes'' is sometimes used literally as "alkanes with a higher number of carbon atoms". One definition distinguishes the higher alkanes as the n-alkanes that are solid under natural conditions. Uses Alkanes from nonane to hexadecane (those alkanes with nine to sixteen carbon atoms) are liquids of higher viscosity, which are less suitable for use in gasoline. They form instead the major part of diesel and aviation fuel. Diesel fuels are characterised by their cetane number, cetane being an older name for hexadecane. However the higher melting points of these alkanes can cause problems at low temperatures and in polar regions, where the fuel becomes too thick to flow correctly. Mixtures of the normal alkanes are used as boiling point standards for simulated distillation by gas c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentacosane
Higher alkanes are alkanes having nine or more carbon atoms. Nonane is the lightest alkane to have a flash point above 25 °C, and is not classified as dangerously flammable. The term ''higher alkanes'' is sometimes used literally as "alkanes with a higher number of carbon atoms". One definition distinguishes the higher alkanes as the n-alkanes that are solid under natural conditions. Uses Alkanes from nonane to hexadecane (those alkanes with nine to sixteen carbon atoms) are liquids of higher viscosity, which are less suitable for use in gasoline. They form instead the major part of diesel and aviation fuel. Diesel fuels are characterised by their cetane number, cetane being an older name for hexadecane. However the higher melting points of these alkanes can cause problems at low temperatures and in polar regions, where the fuel becomes too thick to flow correctly. Mixtures of the normal alkanes are used as boiling point standards for simulated distillation by gas c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiochemical
A semiochemical, from the Greek σημεῖον (''semeion''), meaning "signal", is a chemical substance or mixture released by an organism that affects the behaviors of other individuals. Semiochemical communication can be divided into two broad classes: communication between individuals of the same species (intraspecific) or communication between different species (interspecific). It is usually used in the field of chemical ecology to encompass pheromones, allomones, kairomones, attractants and repellents. Many insects, including parasitic insects, use semiochemicals. Pheromones are intraspecific signals that aid in finding mates, food and habitat resources, warning of enemies, and avoiding competition. Interspecific signals known as allomones and kairomones have similar functions. In nature Pheromone A pheromone (from Greek ''phero'' "to bear" + ''hormone'' from Greek – "impetus") is a secreted or excreted chemical factor that triggers a social response in members of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of . It is the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. the state has 2.76 million inhabitants percent of the national total. The vast majority (92 percent) live in the south-west corner; 79 percent of the population lives in the Perth area, leaving the remainder of the state sparsely populated. The first Europeans to visit Western Australia belonged to the Dutch Dirk Hartog expedition, who visited the Western Australian coast in 1616. The first permanent European colony of Western Australia occurred following the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
