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In evolutionary biology, adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, alters biotic interactions or opens new environmental niches.
Nonadaptive radiations arguably encompass every type of evolutionary radiation that is not an adaptive radiation, [7] [8] although when a more precise mechanism is known to drive diversity, it can be useful to refer to the pattern as, e.g., a geographic radiation. [1]
In other cases, such as certain damselflies [3] and crickets from Hawaii, [5] there can be range overlap in closely related species, and it is likely that sexual selection (and species recognition) plays a role in maintaining (and perhaps giving rise to) species boundaries. [4]
Adaptive radiation is when many species emerge in a short time. Yes, allopatric speciation may have been the manner in which all the species emerged in the adaptive radiation. Still, this does not make the radiation a form of speciation. Radiation is a form of a (large) group of speciations. --Ettrig 17:40, 17 October 2010 (UTC)
A key innovation may allow a species to invade a new region or niche and thus be freed from competition, allowing subsequent speciation and radiation. A classic example of this is the fourth cusp of mammalian molars, the hypocone, which allowed early mammalian ancestors to effectively digest their generalised diet. The precursors to this, the ...
Radiation is the evolutionary process of diversification of a single species into multiple forms. It includes the physiological and ecological diversity within a rapidly multiplying lineage. [ 8 ] There are many types of radiation including adaptive, concordant, and discordant radiation however escape and radiate coevolution does not always ...
The nine days until Federal Reserve officials sit down to decide what to do next with interest rates features a veritable murderers' row of events to shape their move - everything from key ...
A major application of cellular adoptive therapy is cancer treatment, as the immune system plays a vital role in the development and growth of cancer. [1] The primary types of cellular adoptive immunotherapies are T cell therapies. Other therapies include CAR-T therapy, CAR-NK therapy, macrophage-based immunotherapy and dendritic cell therapy.
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