---
OA_place: publisher
OA_type: hybrid
_id: '4336'
abstract:
- lang: eng
  text: "This paper investigates the dynamic behaviour of hybrid zones which are maintained
    by a balance between dispersal and selection against hybrids. In the first section
    it is shown that a hybrid zone involving a single locus can move in response to
    a selective imbalance between the two homozygotes, and also to variation in population
    density and dispersal rate. It can be trapped by natural barriers, and so an allele
    which is selected against when rare cannot advance, even if it is advantageous
    when common. The continuous model used in deriving these results is shown to be
    a good approximation to the stepping-stone model, provided that the cline contains
    several demes.\r\n\r\nThe effect of stochastic forces on multi-locus hybrid zones
    is then considered. An expression giving the shift in position after an arbitrary
    perturbation in gamete frequency is derived. Using this formula, it is found that
    sampling drift is negligible unless the zone includes few organisms and involves
    few loci. Random variations in population structure are the dominant force, and
    could allow considerable movement in an even environment. However, natural barriers
    can still trap hybrid zones, and so it is likely that they will remain roughly
    where they first formed."
article_processing_charge: No
article_type: original
author:
- first_name: Nicholas H
  full_name: Barton, Nicholas H
  id: 4880FE40-F248-11E8-B48F-1D18A9856A87
  last_name: Barton
  orcid: 0000-0002-8548-5240
citation:
  ama: Barton NH. The dynamics of hybrid zones. <i>Heredity</i>. 1979;43(3):341-359.
    doi:<a href="https://doi.org/10.1038/hdy.1979.87">10.1038/hdy.1979.87</a>
  apa: Barton, N. H. (1979). The dynamics of hybrid zones. <i>Heredity</i>. Springer
    Nature. <a href="https://doi.org/10.1038/hdy.1979.87">https://doi.org/10.1038/hdy.1979.87</a>
  chicago: Barton, Nicholas H. “The Dynamics of Hybrid Zones.” <i>Heredity</i>. Springer
    Nature, 1979. <a href="https://doi.org/10.1038/hdy.1979.87">https://doi.org/10.1038/hdy.1979.87</a>.
  ieee: N. H. Barton, “The dynamics of hybrid zones,” <i>Heredity</i>, vol. 43, no.
    3. Springer Nature, pp. 341–359, 1979.
  ista: Barton NH. 1979. The dynamics of hybrid zones. Heredity. 43(3), 341–359.
  mla: Barton, Nicholas H. “The Dynamics of Hybrid Zones.” <i>Heredity</i>, vol. 43,
    no. 3, Springer Nature, 1979, pp. 341–59, doi:<a href="https://doi.org/10.1038/hdy.1979.87">10.1038/hdy.1979.87</a>.
  short: N.H. Barton, Heredity 43 (1979) 341–359.
date_created: 2018-12-11T12:08:19Z
date_published: 1979-12-01T00:00:00Z
date_updated: 2024-10-16T14:33:08Z
day: '01'
doi: 10.1038/hdy.1979.87
extern: '1'
intvolume: '        43'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.nature.com/articles/hdy197987
month: '12'
oa: 1
oa_version: Published Version
page: 341 - 359
publication: Heredity
publication_identifier:
  eissn:
  - 1365-2540
  issn:
  - 0018-067X
publication_status: published
publisher: Springer Nature
publist_id: '1696'
quality_controlled: '1'
status: public
title: The dynamics of hybrid zones
type: journal_article
user_id: 0043cee0-e5fc-11ee-9736-f83bc23afbf0
volume: 43
year: '1979'
...