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Kotochalia Junodi
The wattle bagworm (''Kotochalia junodi'', formerly ''Acanthopsyche junodi'') is a species of moth in the family Psychidae. In southern Africa it is a pest of the black wattle (''Acacia mearnsii'') which is grown largely as a source of vegetable tannin. ''Kotochalia junodi'' is indigenous to Southern Africa, where it originally fed on indigenous relatives of the wattle. Like all members of the family Psychidae, the male larva develops into an adult in a mobile silken bag covered with materials such as thorns and twigs. Only once it is mature does it leave the bag to mate. The female never leaves her bag. In spring the eggs hatch in the bag in which the adult female had grown. Because the female never leaves the tree in which she grew and died, the insects need some other way to move to new trees or in general to disperse, and in fact the newly hatched (first-instar) larva is the dispersive stage of the wattle bagworm life cycle. The larva spins a silken thread on which it may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Posterior (anatomy)
Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek language, Greek roots, describe something in its standard anatomical position. This position provides a definition of what is at the front ("anterior"), behind ("posterior") and so on. As part of defining and describing terms, the body is described through the use of anatomical planes and anatomical axis, anatomical axes. The meaning of terms that are used can change depending on whether an organism is bipedal or quadrupedal. Additionally, for some animals such as invertebrates, some terms may not have any meaning at all; for example, an animal that is radially symmetrical will have no anterior surface, but can still have a description that a part is close to the middle ("proximal") or further from the middle ("distal"). International organisations have determined vocabularies that are often used as standard vocabular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichneumonidae
The Ichneumonidae, also known as the ichneumon wasps, Darwin wasps, or ichneumonids, are a family (biology), family of parasitoid wasps of the insect order Hymenoptera. They are one of the most diverse groups within the Hymenoptera with roughly 25,000 species currently described. However, this likely represents less than a quarter of their true Species richness, richness as reliable estimates are lacking, along with much of the most basic knowledge about their ecology, Species distribution, distribution, and evolution.Quicke, D. L. J. (2015). The braconid and ichneumonid parasitoid wasps: biology, systematics, evolution and ecology. Chichester: John Wiley & Sons, Ltd. Ichneumonid wasps, with very few exceptions, attack the immature stages of Holometabolism, holometabolous insects and spiders, eventually killing their hosts. They thus fulfill an important role as regulators of insect populations, both in natural and semi-natural systems, making them promising agents for Biological p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitoid
In evolutionary ecology, a parasitoid is an organism that lives in close association with its host (biology), host at the host's expense, eventually resulting in the death of the host. Parasitoidism is one of six major evolutionarily stable strategy, evolutionary strategies within parasitism, distinguished by the fatal prognosis for the host, which makes the strategy close to predation. Among parasitoids, strategies range from living inside the host (''endoparasitism''), allowing it to continue growing before emerging as an adult, to Paralysis, paralysing the host and living outside it (''ectoparasitism''). Hosts can include other parasitoids, resulting in hyperparasitism; in the case of oak galls, up to five levels of parasitism are possible. Some parasitoids Behavior-altering parasite, influence their host's behaviour in ways that favour the propagation of the parasitoid. Parasitoids are found in a variety of Taxon, taxa across the insect superorder Endopterygota, whose compl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyhedral Virus
Polyhedral may refer to: *Dihedral (other), various meanings *Polyhedral compound * Polyhedral combinatorics * Polyhedral cone * Polyhedral cylinder * Polyhedral convex function * Polyhedral dice * Polyhedral dual * Polyhedral formula *Polyhedral graph *Polyhedral group *Polyhedral model *Polyhedral net *Polyhedral number *Polyhedral pyramid *Polyhedral prism *Polyhedral space *Polyhedral skeletal electron pair theory *Polyhedral symbol *Polyhedral symmetry *Polyhedral terrain See also * Polyhedron In geometry, a polyhedron (plural polyhedra or polyhedrons; ) is a three-dimensional shape with flat polygonal faces, straight edges and sharp corners or vertices. A convex polyhedron is the convex hull of finitely many points, not all on ..., a geometric shape {{disamb Polyhedra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacillus Thuringiensis
''Bacillus thuringiensis'' (or Bt) is a gram-positive, soil-dwelling bacterium, the most commonly used biological pesticide worldwide. ''B. thuringiensis'' also occurs naturally in the gut of caterpillars of various types of moths and butterflies, as well on leaf surfaces, aquatic environments, animal feces, insect-rich environments, and flour mills and grain-storage facilities. It has also been observed to parasitize other moths such as ''Cadra calidella''—in laboratory experiments working with ''C. calidella'', many of the moths were diseased due to this parasite. During sporulation, many Bt strains produce crystal proteins (proteinaceous inclusions), called delta endotoxins, that have insecticidal action. This has led to their use as insecticides, and more recently to genetically modified crops using Bt genes, such as Bt corn. Many crystal-producing Bt strains, though, do not have insecticidal properties. The subspecies ''israelensis'' is commonly used for control of mosq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isaria
''Isaria'' is a genus of fungi mostly in the order Hypocreales and family Clavicipitaceae, or by some authorities the Cordycipitaceae. It includes a large number of entomopathogenic fungi, entomopathogenic species, some of them exploited as biopesticides (''e.g. Paecilomyces fumosoroseus, I. fumosorosea''): often previously assigned to the genus ''Paecilomyces''. The teleomorph of this genus appears to be ''Ophiocordyceps''. Species The Encyclopaedia of Life lists the following species: References * * {{Taxonbar, from=Q5921032 Clavicipitaceae Biological pest control Taxa named by Christiaan Hendrik Persoon Hypocreales genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomophthora
''Entomophthora'' is a fungal genus in the family Entomophthoraceae. Species in this genus are parasitic on flies and other two-winged insects. The genus was circumscribed by German physician Johann Baptist Georg Wolfgang Fresenius (1808-1866) in 1856.Fresenius, G. 1856. Botanische Zeitung 14, 882-883. This fungus is parasitic and undergoes a number of stages within its life cycle, these include; infection, incubation, sporulation and mummification. Within each stage, this pathogen invades the host’s body cells, utilising the insect’s nutrients allowing it to take control over the brain just before the host’s death. Entomophthora reproduces asexually through both budding and spores. When in the host’s body, the pathogen utilises budding as a form of growth. This is done through a fungi cell developing a bud (daughter cell) on the parent cell. The parent cell then replicates its DNA and provides the daughter cell with this DNA. The daughter cell is then able to detach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strategy (game Theory)
In game theory, a player's strategy is any of the options which they choose in a setting where the outcome depends ''not only'' on their own actions ''but'' on the actions of others. The discipline mainly concerns the action of a player in a game affecting the behavior or actions of other players. Some examples of "games" include chess, bridge, poker, monopoly, diplomacy or battleship. A player's strategy will determine the action which the player will take at any stage of the game. In studying game theory, economists enlist a more rational lens in analyzing decisions rather than the psychological or sociological perspectives taken when analyzing relationships between decisions of two or more parties in different disciplines. The strategy concept is sometimes (wrongly) confused with that of a move. A move is an action taken by a player at some point during the play of a game (e.g., in chess, moving white's Bishop a2 to b3). A strategy on the other hand is a complete algorithm for p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adaptation
In biology, adaptation has three related meanings. Firstly, it is the dynamic evolutionary process of natural selection that fits organisms to their environment, enhancing their evolutionary fitness. Secondly, it is a state reached by the population during that process. Thirdly, it is a phenotypic trait or adaptive trait, with a functional role in each individual organism, that is maintained and has evolved through natural selection. Historically, adaptation has been described from the time of the ancient Greek philosophers such as Empedocles and Aristotle. In 18th and 19th century natural theology, adaptation was taken as evidence for the existence of a deity. Charles Darwin proposed instead that it was explained by natural selection. Adaptation is related to biological fitness, which governs the rate of evolution as measured by change in allele frequencies. Often, two or more species co-adapt and co-evolve as they develop adaptations that interlock with those of the oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clutch (eggs)
__NOTOC__ A clutch of eggs is the group of eggs produced by birds, amphibians, or reptiles, often at a single time, particularly those laid in a nest. In birds, destruction of a clutch by predators (or removal by humans, for example the California condor breeding program) results in ''double-clutching''. The technique is used to double the production of a species' eggs, in the California condor case, specifically to increase population size. The act of putting one's hand in a nest to remove eggs is known as "dipping the clutch". Size Clutch size differs greatly between species, sometimes even within the same genus. It may also differ within the same species due to many factors including habitat, health, nutrition, predation pressures, and time of year. Clutch size variation can also reflect variation in optimal reproduction effort. In birds, clutch size can vary within a species due to various features (age and health of laying female, ability of male to supply food, and abundan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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