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- Character_displacement abstract "Character displacement refers to the phenomenon where differences among similar species whose distributions overlap geographically are accentuated in regions where the species co-occur, but are minimized or lost where the species’ distributions do not overlap. This pattern results from evolutionary change driven by competition among species for a limited resource (e.g. food). The rationale for character displacement stems from the competitive exclusion principle, also called Gause's Law, which contends that to coexist in a stable environment two competing species must differ in their respective ecological niche; without differentiation, one species will eliminate or exclude the other through competition.Character displacement was first explicitly explained by William L. Brown and E. O. Wilson (1956): “Two closely related species have overlapping ranges. In the parts of the ranges where one species occurs alone, the populations of that species are similar to the other species and may even be very difficult to distinguish from it. In the area of overlap, where the two species occur together, the populations are more divergent and easily distinguished, i.e., they “displace” one another in one or more characters. The characters involved can be morphological, ecological, behavioral, or physiological; they are assumed to be genetically based.”Brown and Wilson (1956) used the term character displacement to refer to instances of both reproductive character displacement, or reinforcement of reproductive barriers, and ecological character displacement driven by competition. As the term character displacement is commonly used, it generally refers to morphological differences due to competition. Brown and Wilson viewed character displacement as phenomenon involved in speciation, stating, “we believe that it is a common aspect of geographical speciation, arising most often as a product of the genetic and ecological interaction of two (or more) newly evolved, cognate species [derived from the same immediate parental species] during their period of first contact” (1956). While character displacement is important in various scenarios of speciation, including adaptive radiations like the cichlid fish faunas in the rift lakes of East Africa (Meyer 1993), it also plays an important role in structuring communities. The results of numerous studies contribute evidence that character displacement often influences the evolution of resource acquisition among members of an ecological guild (Dayan and Simberloff 2005).Competitive release (Grant 1972), defined as the expansion of an ecological niche in the absence of a competitor, is essentially the mirror image of character displacement. It too was described by Brown and Wilson (1956): “Two closely related species are distinct where they occur together, but where one member of the pair occurs alone it converges toward the second, even to the extent of being nearly identical with it in some characters.”".
- Character_displacement wikiPageExternalLink chardisp.htm.
- Character_displacement wikiPageID "1889289".
- Character_displacement wikiPageLength "14067".
- Character_displacement wikiPageOutDegree "46".
- Character_displacement wikiPageRevisionID "627902695".
- Character_displacement wikiPageWikiLink Adaptation.
- Character_displacement wikiPageWikiLink Adaptive_radiation.
- Character_displacement wikiPageWikiLink Allopatric_speciation.
- Character_displacement wikiPageWikiLink Allopatry.
- Character_displacement wikiPageWikiLink American_mink.
- Character_displacement wikiPageWikiLink Anolis.
- Character_displacement wikiPageWikiLink Belarus.
- Character_displacement wikiPageWikiLink Bismarck_Archipelago.
- Character_displacement wikiPageWikiLink Canada.
- Character_displacement wikiPageWikiLink Cape_Verde.
- Character_displacement wikiPageWikiLink Cape_Verde_Islands.
- Character_displacement wikiPageWikiLink Caribbean.
- Character_displacement wikiPageWikiLink Category:Evolutionary_biology.
- Character_displacement wikiPageWikiLink Cladistics.
- Character_displacement wikiPageWikiLink Community_(ecology).
- Character_displacement wikiPageWikiLink Community_ecology.
- Character_displacement wikiPageWikiLink Competition.
- Character_displacement wikiPageWikiLink Competitive_exclusion_principle.
- Character_displacement wikiPageWikiLink Darwins_finches.
- Character_displacement wikiPageWikiLink E._O._Wilson.
- Character_displacement wikiPageWikiLink Ecological_communities.
- Character_displacement wikiPageWikiLink Ecological_niche.
- Character_displacement wikiPageWikiLink European_mink.
- Character_displacement wikiPageWikiLink Evolution.
- Character_displacement wikiPageWikiLink Galapagos.
- Character_displacement wikiPageWikiLink Galápagos_Islands.
- Character_displacement wikiPageWikiLink Gasterosteus.
- Character_displacement wikiPageWikiLink Guild_(ecology).
- Character_displacement wikiPageWikiLink Introduced_species.
- Character_displacement wikiPageWikiLink Joseph_Grinnell.
- Character_displacement wikiPageWikiLink Lesser_Antilles.
- Character_displacement wikiPageWikiLink Mink.
- Character_displacement wikiPageWikiLink Mustela_lutreola.
- Character_displacement wikiPageWikiLink Mustela_vison.
- Character_displacement wikiPageWikiLink Myzantha.
- Character_displacement wikiPageWikiLink Nectar.
- Character_displacement wikiPageWikiLink Niche_segregation.
- Character_displacement wikiPageWikiLink P._cinereus.
- Character_displacement wikiPageWikiLink Phylogenetic_systematics.
- Character_displacement wikiPageWikiLink Plethodon.
- Character_displacement wikiPageWikiLink Plethodon_hoffmani.
- Character_displacement wikiPageWikiLink Quantitative_genetics.
- Character_displacement wikiPageWikiLink Salamander.
- Character_displacement wikiPageWikiLink Sexual_conflict.
- Character_displacement wikiPageWikiLink Speciation.
- Character_displacement wikiPageWikiLink Species.
- Character_displacement wikiPageWikiLink Sympatric_speciation.
- Character_displacement wikiPageWikiLink Sympatry.
- Character_displacement wikiPageWikiLink Three-spined_stickleback.
- Character_displacement wikiPageWikiLink Valley_and_ridge_salamander.
- Character_displacement wikiPageWikiLink Woodland_salamander.
- Character_displacement wikiPageWikiLink Xylocopa_darwini.
- Character_displacement wikiPageWikiLinkText "Character displacement".
- Character_displacement wikiPageWikiLinkText "Ecological character displacement".
- Character_displacement wikiPageWikiLinkText "character displacement".
- Character_displacement wikiPageWikiLinkText "displacing".
- Character_displacement hasPhotoCollection Character_displacement.
- Character_displacement wikiPageUsesTemplate Template:Reflist.
- Character_displacement subject Category:Evolutionary_biology.
- Character_displacement comment "Character displacement refers to the phenomenon where differences among similar species whose distributions overlap geographically are accentuated in regions where the species co-occur, but are minimized or lost where the species’ distributions do not overlap. This pattern results from evolutionary change driven by competition among species for a limited resource (e.g. food).".
- Character_displacement label "Character displacement".
- Character_displacement sameAs انزياح_الخاصة.
- Character_displacement sameAs Trajta_movo.
- Character_displacement sameAs Deslocamento_de_caráter.
- Character_displacement sameAs m.063_3s.
- Character_displacement sameAs Q4116407.
- Character_displacement sameAs Q4116407.
- Character_displacement wasDerivedFrom Character_displacement?oldid=627902695.
- Character_displacement isPrimaryTopicOf Character_displacement.