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The Maynard Smith model of sympatric speciation
Journal of Theoretical Biology, 2006The paper entitled "Sympatric speciation," which was published by John Maynard Smith in 1966, initiated the development of mathematical models aiming to identify the conditions for sympatric speciation. A part of that paper was devoted to a specific two-locus, two-allele model of sympatric speciation in a population occupying a two-niche system ...
Sergey Gavrilets
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Refining the conditions for sympatric ecological speciation
Journal of Evolutionary Biology, 2012AbstractCan speciation occur in a single population when different types of resources are available, in the absence of any geographical isolation, or any spatial or temporal variation in selection? The controversial topics of sympatric speciation and ecological speciation have already stimulated many theoretical studies, most of them agreeing on the ...
Florence Débarre
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WAITING FOR SYMPATRIC SPECIATION
Evolution, 2004While it now appears likely that sympatric speciation is possible, its generality remains contentious. If it really is rare, then most natural populations must not fit the assumptions of sympatric speciation theory. A better understanding of these assumptions may help identify when sympatric speciation is or is not likely.
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Evolution, Sympatric Speciation, and Risk Aversion
2020 IEEE Symposium Series on Computational Intelligence (SSCI), 2020Speciation is a crucial topic in the biological sciences. Knowledge of this process helps explain the diversity of life. In the computational realm, considerable efforts have been made to understand mechanisms and conditions that lead to speciation. Speciation has profound implications for artificial life, evolutionary computation, and evolutionary ...
Oluwatobi I. Ajagbe +1 more
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A new approach to sympatric speciation
Trends in Ecology & Evolution, 1987Sympatric speciation has always been a controversial issue. Recently, the debate has centred around the possibility that host race formation in phytophagous insects occurs as a first stage in this process. Now a new approach to host race formation - examining the population genetics of performance on alternative hosts - is challenging a major ...
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Sympatric speciation in palms on an oceanic island
Nature, 2006The origin of species diversity has challenged biologists for over two centuries. Allopatric speciation, the divergence of species resulting from geographical isolation, is well documented. However, sympatric speciation, divergence without geographical isolation, is highly controversial. Claims of sympatric speciation must demonstrate species sympatry,
Savolainen, Vincent +9 more
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Sympatric speciation in Galerucella
1994For decades, the existence and importance of sympatric speciation has remained a controversial issue in speciation research. Very strong opinions exist according to which sympatric speciation could, at most, be a rarely occurring exception, restricted to special types of situations, such as shifts in host preference by herbivorous insects (e.g., Mayr ...
Christina Nokkala, Seppo Nokkala
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Dynamical model for sympatric speciation in an ecological niche.
Theoretical biology forum, 2019The speciation phenomenon is the process used by the evolution to allow populations to become distinct species. The speciation is the primary cause of the complexity of the ecological network. Sympatric speciation concerns the rise of a new species from a surviving ancestral species while both continue to inhabit the same ecological niche or ...
Armando Bazzani +6 more
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Parallel speciation: a key to sympatric divergence
Trends in Ecology & Evolution, 2001Until recently, our view of speciation was that reproductive isolation evolves during long periods of allopatry through the accumulation of genetic differences that result in genetic incompatibility. This view now contrasts with new findings that characters affecting reproductive isolation can diverge rapidly in sympatry as a result of natural ...
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Theory and Models of Sympatric Speciation
1998Abstract In his 1963 book, Animal, Species and Evolution, Ernst Mayr threw down the gauntlet to proponents of sympatric speciation, challenging them to theoretically and empirically support their conjectures of nonallopatric divergence and speciation.
Paul A Johnson, Urban Gullberg
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