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Worker Policing
Worker policing is a behavior seen in colonies of social hymenopterans (ants, bees, and wasps) whereby worker females eat or remove eggs that have been laid by other workers rather than those laid by a queen. Worker policing ensures that the offspring of the queen will predominate in the group. In certain species of bees, ants and wasps, workers or the queen may also act aggressively towards fertile workers. Worker policing has been suggested as a form of coercion to promote the evolution of altruistic behavior in eusocial insect societies. Proposed mechanisms for the recognition of worker-laid eggs or active reproductive workers include marker hydrocarbons on the surface of queen-laid eggs, cuticle hydrocarbons on reproductive workers, and recognition of nest-mates. In rare cases, worker-laid eggs carry mimicked queen hydrocarbons and escape policing, a condition known as the ''anarchic syndrome''. Not all forms of policing require the presence of a queen; it also occurs in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alanna Spence - Queen Bee (by)
Alana, Alanna, or Alannah is a female given name. It can be derived either from the Old High German word for "precious" or from the Irish language term ''"a leanbh"'' for "child". Alana is also a unisex given name in the Hawaiian community meaning ''fair'', ''beautiful'', ''offering'', “harmony”. In Aramaic, Alanna means "high", "elevated" or "exalted". People with the given name Alana/Alaina/Alanna/Alannah/Alanah * Alaina Lockhart (born 1974), Canadian politician * Alana Blanchard, American professional surfer and model * Alana Boden, English actress * Alana Bridgewater, Canadian singer and actor from the Canadian production of the musical '' We Will Rock You'' * Alana Evans, American pornographic actress * Alana Haim, American musician and member of the band Haim * Alana Henderson, Northern Irish singer-songwriter and cellist * Alana Mann, food activist * Alana Paon, Canadian politician * Alana Patience, Australian ballroom dancer and two times winner of ''Danc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kin Selection
Kin selection is the evolutionary strategy that favours the reproductive success of an organism's relatives, even when at a cost to the organism's own survival and reproduction. Kin altruism can look like altruistic behaviour whose evolution is driven by kin selection. Kin selection is an instance of inclusive fitness, which combines the number of offspring produced with the number an individual can ensure the production of by supporting others, such as siblings. Charles Darwin discussed the concept of kin selection in his 1859 book, ''On the Origin of Species'', where he reflected on the puzzle of sterile social insects, such as honey bees, which leave reproduction to their mothers, arguing that a selection benefit to related organisms (the same "stock") would allow the evolution of a trait that confers the benefit but destroys an individual at the same time. R.A. Fisher in 1930 and J.B.S. Haldane in 1932 set out the mathematics of kin selection, with Haldane famously jok ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oophagy
Oophagy ( ) sometimes ovophagy, literally "egg eating", is the practice of embryos feeding on eggs produced by the ovary while still inside the mother's uterus. The word oophagy is formed from the classical Greek (, "egg") and classical Greek (, "to eat"). In contrast, adelphophagy is the cannibalism of a multi-celled embryo. Oophagy is thought to occur in all sharks in the order Lamniformes and has been recorded in the bigeye thresher (''Alopias superciliosus''), the pelagic thresher (''A. pelagicus''), the shortfin mako (''Isurus oxyrinchus'') and the porbeagle (''Lamna nasus'') among others. It also occurs in the tawny nurse shark (''Nebrius ferrugineus''), and in the family Pseudotriakidae. This practice may lead to larger embryos or prepare the embryo for a predatory lifestyle. There are variations in the extent of oophagy among the different shark species. The grey nurse shark (''Carcharias taurus'') practices intrauterine cannibalism, the first developed embryo c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apis Mellifera Carnica Worker Honeycomb 3
Apis or APIS may refer to: *Apis (deity), an ancient Egyptian god * Apis (Greek mythology), several different figures in Greek mythology * Apis (city), an ancient seaport town on the northern coast of Africa ** Kom el-Hisn, a different Egyptian city, formerly called Apis *''Apis'', the genus of the honey bee *Apis, an obsolete name for the constellation Musca * Dragutin Dimitrijević (1876–1917), known as "Apis", Serbian colonel and coup organiser, leader of the Black Hand group * Albastar Apis, a Slovenian motor glider * Wezel Apis 2, a German motor glider * Advance Passenger Information System, an electronic data interchange system *Aircraft Positioning and Information System, an airport stand guidance system A stand guidance system is a system which gives information to a pilot attempting to park an aircraft at an airport stand, usually via visual methods, leading to the term ''Visual Docking Guidance System'' (VDGS) and also ''A-VDGS'' (the A standing ... See also * API (d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convergent Evolution
Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last common ancestor of those groups. The cladistic term for the same phenomenon is homoplasy. The recurrent evolution of flight is a classic example, as flying insects, birds, pterosaurs, and bats have independently evolved the useful capacity of flight. Functionally similar features that have arisen through convergent evolution are ''analogous'', whereas ''homologous'' structures or traits have a common origin but can have dissimilar functions. Bird, bat, and pterosaur wings are analogous structures, but their forelimbs are homologous, sharing an ancestral state despite serving different functions. The opposite of convergence is divergent evolution, where related species evolve different traits. Convergent evolution is similar to paralle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formica Fusca
''Formica fusca'' is a black-colored ant commonly found throughout Europe as well as parts of Southern Asia and Africa. It has the common names silky ant or dusky ant. The range within the palaearctic region extends from Portugal in the west to Japan in the east and from Italy in the south to Fennoscandia in the north. Populations from North America have been split off as a separate species, '' Formica subaenescens''. ''F. fusca'' nests are usually found in rotten tree stumps or under stones in clearcut areas and along woodland borders and hedgerows. Eusociality Colonies are facultatively polygynous (though weakly so); though the queens coexist amicably, contribution to the brood tends to be unequal. Nests are usually small, containing 500–2,000 workers. The workers are large, at long, and fast moving, though timid. To ensure that non-nest mate eggs are not reared, these workers will engage in a process known as worker policing. Alate (winged) forms are produced in June ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antenna (biology)
Antennae ( antenna), sometimes referred to as "feelers", are paired appendages used for Sensory system, sensing in arthropods. Antennae are connected to the first one or two Segmentation (biology), segments of the arthropod head. They vary widely in form but are always made of one or more jointed segments. While they are typically sensory organs, the exact nature of what they sense and how they sense it is not the same in all groups. Functions may variously include sensing tactition, touch, air motion, heat, vibration (sound), and especially insect olfaction, smell or gustation, taste. Antennae are sometimes modified for other purposes, such as mating, brooding, swimming, and even anchoring the arthropod to a substrate (biology), substrate. Larval arthropods have antennae that differ from those of the adult. Many crustaceans, for example, have free-swimming larvae that use their antennae for swimming. Antennae can also locate other group members if the insect lives in a group, lik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platythyrea Punctata
''Platythyrea punctata'' is a species of ant in the family Formicidae. References Further reading * Ponerinae Articles created by Qbugbot Insects described in 1858 {{ponerinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocarbon
In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons are examples of group 14 hydrides. Hydrocarbons are generally colourless and hydrophobic, and their odors are usually weak or exemplified by the odors of gasoline and lighter fluid. They occur in a diverse range of molecular structures and phases: they can be gases (such as methane and propane), liquids (such as hexane and benzene), low melting solids (such as paraffin wax and naphthalene) or polymers (such as polyethylene and polystyrene). In the fossil fuel industries, ''hydrocarbon'' refers to the naturally occurring petroleum, natural gas and coal, and to their hydrocarbon derivatives and purified forms. Combustion of hydrocarbons is the main source of the world's energy. Petroleum is the dominant raw-material source for organic commodity chemicals such as solvents and polymers. Most anthropogenic (human-generated) emissions of greenhouse gases are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carpenter Ant
Carpenter ants (''Camponotus'' spp.) are large () ants indigenous to many forested parts of the world. They build nests inside wood consisting of galleries chewed out with their mandibles or jaws, preferably in dead, damp wood. However, unlike termites, they do not consume wood, discarding a material that resembles sawdust outside their nest. Sometimes, carpenter ants hollow out sections of trees. They also commonly infest wooden buildings and structures, and are a widespread problem and major cause of structural damage. Nevertheless, their ability to excavate wood helps in forest decomposition. The genus includes over 1,000 species. They also farm aphids. In their farming, the ants protect the aphids from predators (usually other insects) while they excrete a sugary fluid called honeydew, which the ants get by stroking the aphids with their antennae. Description ''Camponotus'' are generally large ants, with workers being 4-7 mm long in small species or 7-13 mm in large s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusca Feeding
Fusca may refer to: * Fusca of Ravenna Fusca of Ravenna is a child martyr killed ca. 250 AD in Ravenna, Italy under the persecutions of Decius. Her nurse, Marura, was martyred with her. She is venerated as a saint by the Roman Catholic Church. The presence of a column painting of the sa ... (died c. 250), child saint of the Roman Catholic Church * Volkswagen Beetle, a 1938–2003 economy car (sold as the "Fusca" in Brazil) * Volkswagen Beetle (A5), a 2011–2019 compact car (also sold as the "Fusca" in Brazil) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gene-centered View Of Evolution
With gene defined as "not just one single physical bit of DNA utall replicas of a particular bit of DNA distributed throughout the world", the gene-centered view of evolution, gene's eye view, gene selection theory, or selfish gene theory holds that adaptive evolution occurs through the differential survival of competing genes, increasing the allele frequency of those alleles whose phenotypic trait effects successfully promote their own propagation. The proponents of this viewpoint argue that, since heritable information is passed from generation to generation almost exclusively by DNA, natural selection and evolution are best considered from the perspective of genes. Proponents of the gene-centered viewpoint argue that it permits understanding of diverse phenomena such as altruism and intragenomic conflict that are otherwise difficult to explain from an organism-centered viewpoint. The gene-centered view of evolution is a synthesis of the theory of evolution by natural sel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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