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Magazine - Sympatric speciation Jerry A. Coyne
Magazine R787 Quick guide Sympatric speciation Jerry A. Coyne What is sympatric speciation? The likelihood of sympatric speciation is perhaps the most controversial aspect of speciation, and certainly one of the most contested questions in evolutionary biology.
Speciation
Sympatric speciation Another example: some Pacific salmon have astrict two-year life cycle. Salmon born in 2003 will spawn in 2005, their children will spawn in 2007.
Sympatric speciation in Nicaraguan crater lake cichlid fish
©2006 Nature Publishing Group Sympatric speciation in Nicaraguan crater lake cichlid fish Marta Barluenga 1 *, Kai N. Sto¨lting 1 *, Walter Salzburger 1,2 *, Moritz Muschick 1 &Axel Meyer 1 Sympatric speciation, the formation of species in the absence of geographical barriers, remains one of ...
Adaptive Speciation
In contrast to traditional models of sympatric speciation, adaptive dynamics typically describes the evolution of continuously varying traits or metric charact ers.
Outline of "Speciation"
... mating preferences for similar-raised flies--flies became more efficient at digesting starch or maltose--although segregation was not perfect, suggested that eventually, reproductive isolation would occur Fig. 20 9 • much evidence suggests that sympatric speciation is important ...
122 [Study Guide] 24-1 Species and Speciation
Checking Your Knowledge * You should be able to write out the definitions to each of the followinng terms in your own words: species prezygotic barrier sympatric speciation reproductive isolation postzygotic barrier hybrid zone hybrid allopatric speciation punctuated equilibrium Overview: That ...
Speciation in sea urchins
Evolution of reproductive isolation in the presence of gene flow (sympatric speciation) is considered by these authors as improbable, but according to various models (reviewed by Coyne & Orr 2004, Gavrilets 2004), it can occur if some very restrictive conditions obtain.
Speciation by perception
Speciation by perception ANDERSBRODIN&FREDRIKH AAS Department of Ecology, Lund University (Received 4July 2005; initial acceptance 10 August 2005; final acceptance 11 October 2005; publishedonline 24 May 2006; MS. number: 8601R) During sympatric andparapatric speciation the diverging populations ...
Appendix Table 1. A collection of putative cases of sympatric ...
Appendix Table 1. A collection of putative cases of sympatric speciation. Listing a particular case study does not imply that we advocate its status as a case of sympatric speciation, merely that it has been claimed as such.
Speciation in fungi
The possibility of sympatric speciation in fungi thus heavily relies on the specialization of individuals to differ-entecological niches, possibly causing directly reproductive isolation or selecting for assortative mating.
