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Density-dependent competition and selection on immune function in genetic lizard morphs

Svensson, Erik LU ; Sinervo, B and Comendant, T (2001) In Proceedings of the National Academy of Sciences 98(22). p.12561-12565
Abstract
Density-dependent territorial interactions have been suggested to cause immunosuppression and thereby decrease fitness, but empirical support from natural populations is lacking. Data from a natural lizard population (Uta stansburiana) showed that breeding females surrounded by many territorial neighbors had suppressed immune function. Furthermore, variation in immunological condition had different effects on the fitness of the two heritable female throat-color morphs in this population. These interactive fitness effects caused correlational selection between female throat color and immune responsiveness. Population genetic theory predicts that this should have lead to the buildup and preservation of a genetic correlation between female... (More)
Density-dependent territorial interactions have been suggested to cause immunosuppression and thereby decrease fitness, but empirical support from natural populations is lacking. Data from a natural lizard population (Uta stansburiana) showed that breeding females surrounded by many territorial neighbors had suppressed immune function. Furthermore, variation in immunological condition had different effects on the fitness of the two heritable female throat-color morphs in this population. These interactive fitness effects caused correlational selection between female throat color and immune responsiveness. Population genetic theory predicts that this should have lead to the buildup and preservation of a genetic correlation between female morphotype and immunological condition. Accordingly, the throat color of a female was genetically correlated (r(A) = -1.36; SE = 0.55) with her daughter's immune responsiveness. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Proceedings of the National Academy of Sciences
volume
98
issue
22
pages
12561 - 12565
publisher
National Acad Sciences
external identifiers
  • scopus:0035940467
ISSN
1091-6490
DOI
language
English
LU publication?
yes
id
ef8e8db9-beb6-42b0-83b9-c8de88697f93 (old id 145692)
date added to LUP
2007-06-26 12:19:56
date last changed
2018-05-29 10:29:59
@article{ef8e8db9-beb6-42b0-83b9-c8de88697f93,
  abstract     = {Density-dependent territorial interactions have been suggested to cause immunosuppression and thereby decrease fitness, but empirical support from natural populations is lacking. Data from a natural lizard population (Uta stansburiana) showed that breeding females surrounded by many territorial neighbors had suppressed immune function. Furthermore, variation in immunological condition had different effects on the fitness of the two heritable female throat-color morphs in this population. These interactive fitness effects caused correlational selection between female throat color and immune responsiveness. Population genetic theory predicts that this should have lead to the buildup and preservation of a genetic correlation between female morphotype and immunological condition. Accordingly, the throat color of a female was genetically correlated (r(A) = -1.36; SE = 0.55) with her daughter's immune responsiveness.},
  author       = {Svensson, Erik and Sinervo, B and Comendant, T},
  issn         = {1091-6490},
  language     = {eng},
  number       = {22},
  pages        = {12561--12565},
  publisher    = {National Acad Sciences},
  series       = {Proceedings of the National Academy of Sciences},
  title        = {Density-dependent competition and selection on immune function in genetic lizard morphs},
  url          = {http://dx.doi.org/},
  volume       = {98},
  year         = {2001},
}