adaptive radiation


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

adaptive radiation

Ecology
The evolution of new species or sub-species to fill unoccupied ecological niches.
 
Evolutionary biology
A species-wide diversification in genotype in an environment, resulting in multiple specialised, phenotypically distinct forms, each with survival advantages.

adaptive radiation

the evolution from an ancestral form of a wide range of related species occupying and exploiting many different types of available habitat. For example, mammals, evolving from the Tertiary period, have occupied many habitats and now have flying, running, swimming and burrowing forms, which often show changes to the PENTADACTYL LIMB structure.
References in periodicals archive ?
What the researchers discovered looked nothing like adaptive radiation.
2) Ole Seehausen, "African Cichlid Fish: A Model System in Adaptive Radiation Research," Proceedings of the Royal Society B 273 (2006): 1987-98.
Keywords: Adaptive radiation, biogeography, allopatry, parapatry, evolution
Of special interest are the striking examples of adaptive radiation that pervade Hawaii's biotic landscape.
Several of these contributions address issues related to speciation ranging from a synthesis of research on two continents on the fascinating adaptive radiation of crossbills, to an evaluation of how differences in gene expression affect the process of ecological speciation.
and adds advanced features for clinical resource optimization, workflow automation and adaptive radiation therapy.
His current projects (besides aqua) include: 1) population structure of amphidromous fishes of Micronesia, 2) evolution and systematics of the gobiid genera Ctenogobius, Oxyurichthys, Stiphodon and Sicydium, 2) cryptobenthic Pacific coral reef fish community ecology and evolution, 3) ecological speciation and adaptive radiation of gobies, 4) cryptic speciation in African freshwater sleepers (Eleotridae: Kribia), and 5) conservation genetics of California desert fishes.
It's against both the adaptive radiation model and the proposed stage model.
Dr Grove said: "The study confirmed that a major human adaptive radiation - a pattern whereby the number of coexisting species increases rapidly before crashing again to near previous levels - coincided with an extended period of climatic fluctuation.
Accompanying the workbook, presentation materials provided on the CD make sure to include the role of plate tectonics when investigating the adaptive radiation of primate groups.
It includes functionality such as RaySearch's market-leading algorithms for IMRT and VMAT optimization, highly accurate dose engines for both photon and proton therapy and will have full support for 4D adaptive radiation therapy.
Instructor in Radiation Oncology at the Washington University School of Medicine, which will take place during the Adaptive Radiation Therapy portion of the Joint Symposium on Proffered Papers on Saturday, April 25 at 2:45 p.

Full browser ?