adaptive radiation
adaptive radiation (divergent evolution) The evolution from one species of animals or plants of a number of different forms. As the original population increases in size it spreads out from its centre of origin to exploit new habitats and food sources. In time this results in a number of populations each adapted to its particular habitat: eventually these populations will differ from each other sufficiently to become new species. A good example of this process is the evolution of the Australian marsupials into species adapted as carnivores, herbivores, burrowers, fliers, etc. On a smaller scale, the adaptive radiation of the Galapagos finches provided Darwin with crucial evidence for his theory of evolution (see
Darwin's finches).
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Multigene phylogeny of the Mustelidae: Resolving relationships, tempo and biogeographic history of a mammalian adaptive radiation.(Research article)
Magazine article from: BMC Biology; 2/14/2008; ; 700+ words
; ...habitats. As with other cases of adaptive radiation [3], resolving...certain groups that exemplify adaptive radiation (e.g. Anolis lizards...an important issue because adaptive radiations are often composed of lineages...
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Molecular Evolution and Adaptive Radiation.(Review)
Magazine article from: Ecology; 1/1/1999; ; 700+ words
; ...Givnish outlines alternatives to adaptive radiation (non-adaptive, developmental, sexual, and coevolutionary radiations) and demonstrates how the study of adaptive radiation provides insight into adaptation...
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RaySearch Laboratories: Agreement between Philips and RaySearch Regarding Adaptive Radiation Therapy is Finalized.
Business Wire; 10/31/2006; 700+ words
; ...new products within adaptive radiation therapy. The agreement...second half of 2007. Adaptive radiation therapy...is known as adaptive radiation therapy. Today, there...is a simpler form of adaptive radiation therapy...
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"Radiating" Plants.(adaptive radiation)
Magazine article from: Endangered Species Bulletin; 11/1/1998; ; 700+ words
; Adaptive radiation of Hawaiian species has been aided by the isolation...special interest are the striking examples of adaptive radiation that pervade Hawaii's biotic landscape. In adaptive radiation, a single ancestral species evolves...
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Published Studies Highlight Calypso Medical's Role in Enabling Real-Time Adaptive Radiation Delivery to Moving Tumors.
Business Wire; 6/18/2009; 700+ words
; ...immediate adjustments to radiation delivery in response...known as real-time adaptive radiation treatment...System data will enable radiation treatment to be delivered...targets defined during radiation treatments," said...gating and real-time adaptive radiation treatment...
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Adaptive radiation in sticklebacks: trade-offs in feeding performance and growth.
Magazine article from: Ecology; 1/1/1995; ; 700+ words
; ...hypothesized to be a primary cause of adaptive radiation (Lack 1947, Amadon 1950, Mayr...resources. This hypothesis of adaptive radiation makes at least three...complex appears to represent an adaptive radiation in its earliest stages...
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U.S., German Inventors Develop Adaptive Radiation Therapy Framework Utilizing System
News Wire article from: US Fed News Service, Including US State News; 8/21/2008; 553 words
; ...According to the U.S. Patent & Trademark Office: "Use of an adaptive radiation therapy framework includes determination of a radiation beam size, radiation beam shape, and radiation beam position for delivering at least a portion...
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Philips new drag-and-drop oncology software allows faster tumor contouring and paves the way for adaptive radiation therapy; Company announces Brilliance CT Big Bore installation milestone and new features.
Business Wire; 7/31/2006; 700+ words
; ...software for Image Guided Radiation Therapy (IGRT) workflow...the current Pinnacle(3) Radiation Therapy Planning system...toolbox capable of sculpting radiation doses to tumors. The new...efficiencies today, future adaptive IGRT planning will depend...
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Siemens Receives FDA 510(k) Clearance for the MVision Megavoltage Cone Beam Imaging Package; New Radiation Treatment Solution for Adaptive Radiation Therapy Enables Improved Treatment Accuracy.
Business Wire; 4/3/2006; 700+ words
; ...is the latest innovation in Siemens' portfolio of Adaptive Radiation Therapy (ART) solutions. MVision is a unique volumetric...solution and the natural next step in Image-Guided Radiation Therapy (IGRT). Designed to work with Siemens...
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Survey of Leguminosae - a study in adaptive radiation.(Chemistry of Cerambycid Host Plants, part 1)
Magazine article from: The Botanical Review; 10/1/1997; ; 700+ words
; ...questionable. The present patterns of host utilization may be entirely the result of a process that Brown (1987) named "adaptive radiation." Applied to Brown's objects of study, the Ithomiinae, this means that these butterflies colonized their present...
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adaptive radiation
Book article from: A Dictionary of Ecology
adaptive radiation 1. A burst of evolution, with rapid...many taxonomic levels (e.g. the radiation of the mammals at the base of the Cenozoic...division of one species into two and adaptive radiation imposes no such constraint...
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adaptive type
Book article from: A Dictionary of Zoology
adaptive type A population or taxon that has distinctive adaptive attributes, expressed as a particular...evolutionary terms, the appearance of a new adaptive type is frequently followed by radiations that yield variants; these partition...
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radiation
Book article from: A Dictionary of Biology
radiation 1. (in physics) Energy travelling in the form of electromagnetic waves or photons...from a radioactive source or neutrons from a nuclear reactor. See also background radiation . 3. (in evolution)See adaptive radiation .
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African Cichlid Fishes
Book article from: Animal Sciences
...adaptive radiation . An adaptive radiation describes a group...Other well-known adaptive radiations include those of...other instances of adaptive radiation, including those...In both these radiations of birds, there...
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Endemic
Encyclopedia entry from: The Gale Encyclopedia of Science
...remarkable examples of evolutionary radiation of endemic species on oceanic...diverse groups likely evolved by adaptive radiations into unfilled habitat opportunities...influences of isolation and adaptive radiation on islands, these places tend...
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