---
res:
  bibo_abstract:
  - If distinct biological species are to coexist in sympatry, they must be reproductively
    isolated and must exploit different limiting resources. A two-niche Levene model
    is analysed, in which habitat preference and survival depend on underlying additive
    traits. The population genetics of preference and viability are equivalent. However,
    there is a linear trade-off between the chances of settling in either niche, whereas
    viabilities may be constrained arbitrarily. With a convex trade-off, a sexual
    population evolves a single generalist genotype, whereas with a concave trade-off,
    disruptive selection favours maximal variance. A pure habitat preference evolves
    to global linkage equilibrium if mating occurs in a single pool, but remarkably,
    evolves to pairwise linkage equilibrium within niches if mating is within those
    niches--independent of the genetics. With a concave trade-off, the population
    shifts sharply between a unimodal distribution with high gene flow and a bimodal
    distribution with strong isolation, as the underlying genetic variance increases.
    However, these alternative states are only simultaneously stable for a narrow
    parameter range. A sharp threshold is only seen if survival in the 'wrong' niche
    is low; otherwise, strong isolation is impossible. Gene flow from divergent demes
    makes speciation much easier in parapatry than in sympatry.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Nicholas H
      foaf_name: Barton, Nicholas H
      foaf_surname: Barton
      foaf_workInfoHomepage: http://www.librecat.org/personId=4880FE40-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-8548-5240
  bibo_doi: 10.1098/rstb.2010.0001
  bibo_issue: '1547'
  bibo_volume: 365
  dct_date: 2010^xs_gYear
  dct_identifier:
  - UT:000277208600009
  dct_language: eng
  dct_publisher: Royal Society@
  dct_title: What role does natural selection play in speciation?@
  fabio_hasPubmedId: '20439284'
...