---
_id: '4323'
abstract:
- lang: eng
  text: It is noted that the sibling competition model for the evolution of sex and
    recombination, as it has been developed so far, involves truncation selection.
    After briefly reviewing aspects of the development and behaviour of such models
    an analytical treatment is presented which involves additive selection. Additive
    selection, as compared with truncation selection, decreases the advantage of sex
    to such an extent that it is unlikely that sibling competition could overcome
    its intrinsic two-fold cost, although it could still be important in promoting
    family variability produced by other mechanisms, such as polyandry.
acknowledgement: "We would like to thank M. Bulmer for his helpful comments. R. J.
  Post was supported during this work by an MRC Postdoctoral Fellowship, and N. Barton
  by an SRC Postdoctoral Fellowship. \r\n"
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
- first_name: R.J.
  full_name: Post, R.J.
  last_name: Post
citation:
  ama: Barton NH, Post RJ. Sibling competition and the advantage of mixed families.
    <i>Journal of Theoretical Biology</i>. 1986;120(4):381-387. doi:<a href="https://doi.org/10.1016/S0022-5193(86)80033-9">10.1016/S0022-5193(86)80033-9</a>
  apa: Barton, N. H., &#38; Post, R. J. (1986). Sibling competition and the advantage
    of mixed families. <i>Journal of Theoretical Biology</i>. Elsevier. <a href="https://doi.org/10.1016/S0022-5193(86)80033-9">https://doi.org/10.1016/S0022-5193(86)80033-9</a>
  chicago: Barton, Nicholas H, and R.J. Post. “Sibling Competition and the Advantage
    of Mixed Families.” <i>Journal of Theoretical Biology</i>. Elsevier, 1986. <a
    href="https://doi.org/10.1016/S0022-5193(86)80033-9">https://doi.org/10.1016/S0022-5193(86)80033-9</a>.
  ieee: N. H. Barton and R. J. Post, “Sibling competition and the advantage of mixed
    families,” <i>Journal of Theoretical Biology</i>, vol. 120, no. 4. Elsevier, pp.
    381–387, 1986.
  ista: Barton NH, Post RJ. 1986. Sibling competition and the advantage of mixed families.
    Journal of Theoretical Biology. 120(4), 381–387.
  mla: Barton, Nicholas H., and R. J. Post. “Sibling Competition and the Advantage
    of Mixed Families.” <i>Journal of Theoretical Biology</i>, vol. 120, no. 4, Elsevier,
    1986, pp. 381–87, doi:<a href="https://doi.org/10.1016/S0022-5193(86)80033-9">10.1016/S0022-5193(86)80033-9</a>.
  short: N.H. Barton, R.J. Post, Journal of Theoretical Biology 120 (1986) 381–387.
date_created: 2018-12-11T12:08:15Z
date_published: 1986-06-21T00:00:00Z
date_updated: 2022-01-31T14:44:50Z
day: '21'
doi: 10.1016/S0022-5193(86)80033-9
extern: '1'
intvolume: '       120'
issue: '4'
language:
- iso: eng
month: '06'
oa_version: None
page: 381 - 387
publication: Journal of Theoretical Biology
publication_identifier:
  eissn:
  - 1095-8541
  issn:
  - 0022-5193
publication_status: published
publisher: Elsevier
publist_id: '1720'
quality_controlled: '1'
status: public
title: Sibling competition and the advantage of mixed families
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 120
year: '1986'
...