Conditions for sympatric speciation: A diploid model incorporating habitat fidelity and non-habitat assortative mating

@article{Johnson2005ConditionsFS,
  title={Conditions for sympatric speciation: A diploid model incorporating habitat fidelity and non-habitat assortative mating},
  author={P. Johnson and F. Hoppensteadt and James J. Smith and G. Bush},
  journal={Evolutionary Ecology},
  year={2005},
  volume={10},
  pages={187-205}
}
SummaryThree types of genes have been proposed to promote sympatric speciation: habitat preference genes, assortative mating genes and habitat-based fitness genes. Previous computer models have analysed these genes separately or in pairs. In this paper we describe a multilocus model in which genes of all three types are considered simultaneously. Our computer simulations show that speciation occurs in complete sympatry under a broad range of conditions. The process includes an initial… Expand

Figures and Tables from this paper

Speciation: more likely through a genetic or through a learned habitat preference?
  • J. Beltman, J. Metz
  • Biology, Medicine
  • Proceedings of the Royal Society B: Biological Sciences
  • 2005
TLDR
A model where a habitat preference evolves, and that mates are chosen within the preferred habitat is presented, which shows that, when loci are completely unlinked and learning confers little cost, the presence of disruptive selection most probably leads to speciation via the simultaneous evolution of a learned habitat preference. Expand
MULTILOCUS MODELS OF SYMPATRIC SPECIATION: BUSH VERSUS RICE VERSUS FELSENSTEIN
TLDR
Documenting instances of sympatric species that are reproductively isolated only by host or habitat preference would provide evidence for the plausibility of symp atric speciation in nature. Expand
SPECIATION THROUGH COMPETITION: A CRITICAL REVIEW
TLDR
These theoretical models do not support the conclusion that sympatric speciation is a likely outcome of competition for resources, because in their parapatric model (Doebeli and Dieckmann 2003), clustering into distinct phenotypes is driven by edge effects, rather than by frequency‐dependent competition. Expand
MULTILOCUS MODELS OF SYMPATRIC SPECIATION: BUSH VERSUS RICE VERSUS FELSENSTEIN
  • J. D. Fry
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 2003
TLDR
Documenting instances of sympatric species that are reproductively isolated only by host or habitat preference would provide evidence for the plausibility of symp atric speciation in nature. Expand
Adaptive Dynamics of Speciation: Ecological Underpinnings
TLDR
The adaptive dynamic analysis reveals the course of long-term evolution expected in a given ecological scenario and shows whether, and under which conditions, a population is expected to evolve toward a state in which disruptive selection arises and promotes speciation. Expand
Species coexist more easily if reinforcement is based on habitat preferences than on species recognition.
TLDR
The results emphasize the importance of habitat segregation in reinforcement, and offer a way to interpret findings where closely related taxa show similar performance on different resources or in different habitats, as well as examining the outcomes when both isolation mechanisms evolve jointly. Expand
Case studies and mathematical models of ecological speciation. 1. Cichlids in a crater lake
TLDR
A stochastic, individual‐based, explicit genetic model tailored for this cichlid system shows that relatively rapid colonization of a new ecological niche and (sympatric or parapatric) speciation via local adaptation and divergence in habitat and mating preferences are theoretically plausible. Expand
Habitat Choice and Speciation
TLDR
This work proposes and describes three independent criteria underlying ten different evolutionary scenarios in which habitat choice may promote or maintain local adaptation in the intertidal gastropod Littorina saxatilis, assessing whether any of the proposed scenarios can be reliably distinguished, given current research. Expand
Importance of the life cycle in sympatric host race formation and speciation of pathogens.
TLDR
It is shown that divergence can occur in sympatry and lead to host race formation, or even speciation, by a mere process of specialization, with strong divergent adaptive selection. Expand
The genetics and ecology of sympatric speciation: A case study
TLDR
Evidence is provided that in phytophagous and parasitic insects sufficient intrinsic barriers to gene flow can evolve between sister populations as they adapt to different habitats or hosts to allow each population to establish independent evolutionary lineages in sympatry. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 70 REFERENCES
Sympatric speciation : a simulation model of imperfect assortative mating
TLDR
The computer model of sympatric speciation has been expanded and partial assortative mating incorporated and the hypothesis states that increased homozygosity in populations must exist and be observed at least temporarily as a distinct deviation from the Hardy-Weinberg recombination principle. Expand
DISRUPTIVE SELECTION ON HABITAT PREFERENCE AND THE EVOLUTION OF REPRODUCTIVE ISOLATION: A SIMULATION STUDY
  • W. Rice
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 1984
TLDR
It is suggested that environmental conditions which produce disruptive selection on habitat preference represent a special case in which sympatric speciation is particularly likely to occur. Expand
Polymorphism in heterogeneous environments, evolution of habitat selection and sympatric speciation: Soft and hard selection models
TLDR
It appears then that hard selection can account for the existence of empty habitat and for an easier evolution of habitat specialization, and be responsible for the maintenance of adaptive polymorphism when selection is hard. Expand
Sympatric speciation: when is it possible?
TLDR
The present analysis confirms the view that such a selection on sufficiently polymorphic traits for speciation is ecologically realistic and shows that populations with bimodal distributions of some genetically determined quantitative characters can have a considerable life-time. Expand
THE EVOLUTION OF REPRODUCTIVE ISOLATION AS A CORRELATED CHARACTER UNDER SYMPATRIC CONDITIONS: EXPERIMENTAL EVIDENCE
  • W. Rice, G. Salt
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 1990
A set of experiments is described that tests the general hypothesis that sympatric speciation is genetically feasible whenever reproductive isolation evolves indirectly as a correlated character. WeExpand
Theoretical Considerations of Sympatric Divergence
TLDR
Results showed that a polymorphism could be maintained particularly with high levels of selection and/or low levels of gene flow, both in single-gene and polygenic cases. Expand
Multilocus model of sympatric speciation. I: One character
TLDR
The model shows that sympatric speciation is possible under a wide range of quite realistic conditions, which supports the hypothesis about its possibility in nature. Expand
Speciation via habitat specialization: the evolution of reproductive isolation as a correlated character
  • W. Rice
  • Biology
  • Evolutionary Ecology
  • 2005
TLDR
It is shown that disruptive selection on a continuous distribution of habitat preference can lead to the evolution of prezygotic reproductive isolation as a correlated character and the form of selection eliminates the major theoretical objections to the process of sympatric speciation. Expand
Lottery of sympatric speciation—A computer model
TLDR
It was demonstrated that under a particular set of conditions the speciation may be triggered as a result of a sequence of time-related events, including a decrease of heterozygote fitness, followed by a mutation originating assortative mating, which effectively blocks sympatric speciation. Expand
PLEIOTROPY AND PARAPATRIC SPECIATION.
TLDR
The potential importance of pleiotropic effects at different loci tend to reinforce each other and can lead to speciation in parapatric populations is investigated by means of a simple model. Expand
...
1
2
3
4
5
...