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Melipona Quadrifasciata
''Melipona quadrifasciata'' is a species of eusocial, stingless bee of the order Hymenoptera. It is native to the southeastern coastal states of Brazil, where it is more commonly known as mandaçaia, which means "beautiful guard," as there is always a bee at the narrow entrance of the nest. ''M. quadrifasciata'' constructs mud hives in the hollows of trees to create thin passages that only allow one bee to pass at a time. Because they are stingless bees, ''M. quadrifasciata'' is often used as pollinators in greenhouses, outperforming honey bees in efficiency and leading to overall larger yields of fruits that were heavier, larger, and contained more seeds. Taxonomy ''Melipona quadrifasciata'' is a member of the family Apidae and the order Hymenoptera. ''M. quadrifasciata'' is in the subfamily Meliponini which is commonly referred to as "stingless bees". The genus ''Melipona'' includes nearly 50 other species. ''M. quadrifasciata'' can be categorized into two subspecies: ''M. q ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amédée Louis Michel Le Peletier, Comte De Saint-Fargeau
Amédée Louis Michel le Peletier, comte de Saint-Fargeau (9 October 1770 – 23 August 1845), also spelled Lepeletier or Lepelletier, was a French entomologist, and specialist in the Hymenoptera. In 1833, he served as president of the Société entomologique de France. Works *with Gaspard Auguste Brullé '' Histoire naturelle des insectes. Hyménoptères''. Roret, Paris 1836–46 p.m. *''Memoires sur le G. Gorytes Latr. Arpactus Jur''. Paris 1832. *''Monographia tenthredinetarum, synonimia extricata''. Levrault, Paris 1823–25. *''Mémoire sur quelques espéces nouvelles d’Insectes de la section des hyménoptères appelés les portetuyaux et sur les caractères de cette famille et des genres qui la composent''. Paris 1806. *''Défense de Félix Lepeletier''. Vatar, Paris 1796/97. *with Jean Guillaume Audinet-Serville a treatise on Hemiptera to Guillaume-Antoine Olivier's Histoire naturelle. ''Entomologie, ou histoire naturelle des Crustacés, des Arachnides et des Insectes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melipona
''Melipona'' is a genus of stingless bees, widespread in warm areas of the Neotropics, from Sinaloa and Tamaulipas (México) to Tucumán and Misiones (Argentina). About 70 species are known.Grüter, C. 2020. ''Stingless Bees: Their Behaviour, Ecology and Evolution''. ''Springer Nature'', 385 pp. The largest producer of honey from ''Melipona'' bees in Mexico is in the state of Yucatán where bees are studied at an interactive park called "Bee Planet" which is within the Cuxtal Ecological Reserve. Several species are kept for honey production, such as in Brazil, where some are well-known enough to have common names, including ''uruçu'', ''mandaçaia'', ''jandaíra'', and ''manduri''. ''Melipona'' honey has long been used by humans and now is of minor commercial importance. Research is going on in improved beekeeping techniques. The Melipona bee is the only pollinator known to pollinate the vanilla plant. Pollination by Melipona bee has only occurred in Mexico and almost all vani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Brazil
Endemism is the state of a species being found 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 be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imidacloprid
Imidacloprid is a systemic insecticide belonging to a class of chemicals called the neonicotinoids which act on the central nervous system of insects. The chemical works by interfering with the transmission of stimuli in the insect nervous system. Specifically, it causes a blockage of the nicotinergic neuronal pathway. By blocking nicotinic acetylcholine receptors, imidacloprid prevents acetylcholine from transmitting impulses between nerves, resulting in the insect's paralysis and eventual death. It is effective on contact and via stomach action. Because imidacloprid binds much more strongly to insect neuron receptors than to mammal neuron receptors, this insecticide is more toxic to insects than to mammals. From 1999 through , imidacloprid was the most widely used insecticide in the world. Although it is now off patent, the primary manufacturer of this chemical is Bayer CropScience (part of Bayer AG). It is sold under many names for many uses; it can be applied by soil injection ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spinosad
Spinosad is an insecticide based on chemical compounds found in the bacterial species ''Saccharopolyspora spinosa''. The genus ''Saccharopolyspora'' was discovered in 1985 in isolates from crushed sugarcane. The bacteria produce yellowish-pink aerial hyphae, with bead-like chains of spores enclosed in a characteristic hairy sheath. This genus is defined as aerobic, Gram-positive, nonacid-fast actinomycetes with fragmenting substrate mycelium. ''S. spinosa'' was isolated from soil collected inside a nonoperational sugar mill rum still in the Virgin Islands. Spinosad is a mixture of chemical compounds in the spinosyn family that has a generalized structure consisting of a unique tetracyclic ring system attached to an amino sugar (D-forosamine) and a neutral sugar (tri-''Ο''-methyl-L-rhamnose). Spinosad is relatively nonpolar and not easily dissolved in water. Spinosad is a novel mode-of-action insecticide derived from a family of natural products obtained by fermentation of ''S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biopesticide
A Biopesticide is a biological substance or organism that damages, kills, or repels organisms seens as pests. Biological pest management intervention involves predatory, parasitic, or chemical relationships. They are obtained from organisms including plants, bacteria and other microbes, fungi, nematodes, ''etc''. They are components of integrated pest management (IPM) programmes, and have received much practical attention as substitutes to synthetic chemical plant protection products (PPPs). Definitions Definitions: ThU.S. Environmental Protection Agencystates that biopesticides "are certain types of pesticides derived from such natural materials as animals, plants, bacteria, and certain minerals, and currently, there are 299 registered biopesticide active ingredients and 1401 active biopesticide product registrations." The EPA also states that biopesticides "include naturally occurring substances that control pests (biochemical pesticides), microorganisms that control pests ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caryocar Brasiliense
''Caryocar brasiliense'', known as pequi (, ) or "souari nut", like its congeners, is an edible fruit popular in some areas of Brazil, especially in Centerwestern Brazil. Taxonomy The pequi tree grows up to 10 m (30 ft) tall. It is common in the central Brazilian cerrado habitatMelo (2001) from southern Pará to Paraná and northern Paraguay. Its leaves are large, tough, hairy and palmate, with three leaflets each. Unlike most other cerrado trees, it bears flowers in the dry winter months, approximately July to September. The yellowish-white flowers are hermaphroditic and bear many stamens; they somewhat resemble a huge pale St John's Wort flower (a distant relative among the Malpighiales). There are often two dozen or more flowers per inflorescence. Pollination Pollination is mainly by bats and, as usual in such cases, the flowers do not have a pleasant smell but produce copious thin nectar. Flowers open in the evening and produce nectar throughout the night ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerrado
The ''Cerrado'' (, ) is a vast ecoregion of tropical savanna in eastern Brazil, particularly in the states of Goiás, Mato Grosso do Sul, Mato Grosso, Tocantins, Minas Gerais, and the Federal District. The core areas of the Cerrado biome are the Brazilian highlands – the ''Planalto''. The main habitat types of the Cerrado consist of forest savanna, wooded savanna, park savanna and gramineous-woody savanna. The ''Cerrado'' also includes savanna wetlands and gallery forests. The second largest of Brazil's major habitat types, after the Amazonian rainforest, the Cerrado accounts for a full 21 percent of the country's land area (extending marginally into Paraguay and Bolivia). The first detailed European account of the Brazilian cerrados was provided by Danish botanist Eugenius Warming (1892) in the book ''Lagoa Santa'', : The above is the original. There are other, later French and Portuguese translations not listed here. in which he describes the main features of the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bahia
Bahia ( , , ; meaning "bay") is one of the 26 Federative units of Brazil, states of Brazil, located in the Northeast Region, Brazil, Northeast Region of the country. It is the fourth-largest Brazilian state by population (after São Paulo (state), São Paulo, Minas Gerais, and Rio de Janeiro (state), Rio de Janeiro) and the 5th-largest by area. Bahia's capital is the city of Salvador, Bahia, Salvador (formerly known as "Cidade do São Salvador da Bahia de Todos os Santos", literally "City of the Saint Savior of the Bay of All the Saints"), on a Spit (landform), spit of land separating the Bay of All Saints from the Atlantic. Once a monarchial stronghold dominated by Agriculture in Brazil, agricultural, Slavery in Brazil, slaving, and ranching interests, Bahia is now a predominantly Working class, working-class industrial and agricultural state. The state is home to 7% of the Brazilian population and produces 4.2% of the country's GDP. Name The name of the state derives from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luminous Intensity
In photometry, luminous intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle, based on the luminosity function, a standardized model of the sensitivity of the human eye. The SI unit of luminous intensity is the candela (cd), an SI base unit. Measurement Photometry deals with the measurement of visible light as perceived by human eyes. The human eye can only see light in the visible spectrum and has different sensitivities to light of different wavelengths within the spectrum. When adapted for bright conditions (photopic vision), the eye is most sensitive to yellow-green light at 555 nm. Light with the same radiant intensity at other wavelengths has a lower luminous intensity. The curve which measures the response of the human eye to light is a defined standard, known as the luminosity function. This curve, denoted ''V''(λ) or \textstyle \overline(\lambda), is based on an average of widely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humidity
Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water, is generally invisible to the human eye. Humidity indicates the likelihood for precipitation, dew, or fog to be present. Humidity depends on the temperature and pressure of the system of interest. The same amount of water vapor results in higher relative humidity in cool air than warm air. A related parameter is the dew point. The amount of water vapor needed to achieve saturation increases as the temperature increases. As the temperature of a parcel of air decreases it will eventually reach the saturation point without adding or losing water mass. The amount of water vapor contained within a parcel of air can vary significantly. For example, a parcel of air near saturation may contain 28 g of water per cubic metre of air at , but only 8 g of water per cubic metre of air at . Three primary measurements of humidity are widely employed: absolute, relative, and specific. Ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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