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Article: Age-specific life history tactics in organisms with determinate growth: Optimal models for non-optimal behavior?

TitleAge-specific life history tactics in organisms with determinate growth: Optimal models for non-optimal behavior?
Authors
KeywordsAge
Evolutionary Model
Life History Evolution
Reproductive Effort
Senescence
Issue Date1996
PublisherSpringer Japan. The Journal's web site is located at http://www.blackwellpublishing.com/journal.asp?ref=0912-3814&site=1
Citation
Ecological Research, 1996, v. 11 n. 1, p. 61-68 How to Cite?
AbstractAmong organisms with determinate growth, optimization models predict that reproductive effort should increase as individuals approach old age, but the assumptions of these models may be inappropriate because the senescence that generates the necessary selective pressure may be not itself be optimal. Population genetics models were constructed to examine whether genes for age-specific changes in reproductive effort could invade a population in which senescence was maintained at equilibrium levels by a balance between mutation and selection. In asexually reproducing organisms, it was found that strategies of increasing reproductive effort could not normally invade the population. In sexually reproducing organisms, however, recombination was found to be important and genes for age-specific changes in effort could spread in the population under most circumstances.
Persistent Identifierhttp://hdl.handle.net/10722/178581
ISSN
2015 Impact Factor: 1.338
2015 SCImago Journal Rankings: 0.713
References

 

DC FieldValueLanguage
dc.contributor.authorThomson, DLen_US
dc.date.accessioned2012-12-19T09:48:30Z-
dc.date.available2012-12-19T09:48:30Z-
dc.date.issued1996en_US
dc.identifier.citationEcological Research, 1996, v. 11 n. 1, p. 61-68en_US
dc.identifier.issn0912-3814en_US
dc.identifier.urihttp://hdl.handle.net/10722/178581-
dc.description.abstractAmong organisms with determinate growth, optimization models predict that reproductive effort should increase as individuals approach old age, but the assumptions of these models may be inappropriate because the senescence that generates the necessary selective pressure may be not itself be optimal. Population genetics models were constructed to examine whether genes for age-specific changes in reproductive effort could invade a population in which senescence was maintained at equilibrium levels by a balance between mutation and selection. In asexually reproducing organisms, it was found that strategies of increasing reproductive effort could not normally invade the population. In sexually reproducing organisms, however, recombination was found to be important and genes for age-specific changes in effort could spread in the population under most circumstances.en_US
dc.languageengen_US
dc.publisherSpringer Japan. The Journal's web site is located at http://www.blackwellpublishing.com/journal.asp?ref=0912-3814&site=1en_US
dc.relation.ispartofEcological Researchen_US
dc.subjectAgeen_US
dc.subjectEvolutionary Modelen_US
dc.subjectLife History Evolutionen_US
dc.subjectReproductive Efforten_US
dc.subjectSenescenceen_US
dc.titleAge-specific life history tactics in organisms with determinate growth: Optimal models for non-optimal behavior?en_US
dc.typeArticleen_US
dc.identifier.emailThomson, DL: dthomson@hku.hken_US
dc.identifier.authorityThomson, DL=rp00788en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0029662445en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0029662445&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume11en_US
dc.identifier.issue1en_US
dc.identifier.spage61en_US
dc.identifier.epage68en_US
dc.publisher.placeJapanen_US
dc.identifier.scopusauthoridThomson, DL=7202586830en_US

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