Laboratory relationships between adult lifetime reproductive success and fitness surrogates in a Drosophila littoralis population

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Show simple item record Pekkala, Nina Kotiaho, Janne Sakari Puurtinen, Mikael 2012-08-20T11:44:46Z 2012-08-20T11:44:46Z 2011
dc.identifier.citation Pekkala N, Kotiaho JS, Puurtinen M (2011) Laboratory Relationships between Adult Lifetime Reproductive Success and Fitness Surrogates in a Drosophila littoralis Population. PLoS ONE 6(9): e24560. doi:10.1371/journal.pone.0024560
dc.identifier.issn 1932-6203
dc.description.abstract The difficulties in measuring total fitness of individuals necessitate the use of fitness surrogates in ecological and evolutionary studies. These surrogates can be different components of fitness (e.g. survival or fecundity), or proxies more uncertainly related to fitness (e.g. body size or growth rate). Ideally, fitness would be measured over the lifetime of individuals; however, more convenient short-time measures are often used. Adult lifetime reproductive success (adult LRS) is closely related to the total fitness of individuals, but it is difficult to measure and rarely included in fitness estimation in experimental studies. We explored phenotypic correlations between female adult LRS and various commonly used fitness components and proxies in a recently founded laboratory population of Drosophila littoralis. Noting that survival is usually higher in laboratory conditions than in nature, we also calculated adjusted adult LRS measures that give more weight to early reproduction. The lifetime measures of fecundity, longevity, and offspring viability were all relatively highly correlated with adult LRS. However, correlations with short-time measures of fecundity and offspring production varied greatly depending on the time of measurement, and the optimal time for measurement was different for unadjusted compared to adjusted adult LRS measures. Correlations between size measures and adult LRS varied from weak to modest, leg size and female weight having the highest correlations. Our results stress the importance of well-founded choice of fitness surrogates in empirical research. fi
dc.language.iso eng
dc.publisher Public Library of Science
dc.relation.ispartofseries PLoS ONE
dc.rights © 2011 Pekkala et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.rights openAccess fi
dc.subject.other aging en
dc.subject.other fecundity en
dc.subject.other life history traits en
dc.subject.other longevity en
dc.subject.other elinkiertopiirteet fi
dc.subject.other elinikä fi
dc.subject.other fekunditeetti fi
dc.subject.other ikääntyminen fi
dc.subject.other koko fi
dc.subject.other LRS
dc.title Laboratory relationships between adult lifetime reproductive success and fitness surrogates in a Drosophila littoralis population
dc.type Article
dc.identifier.urn URN:NBN:fi:jyu-201208202194
dc.subject.kota 118
dc.contributor.laitos Bio- ja ympäristötieteiden laitos fi
dc.contributor.laitos The Department of Biological and Environmental Science en
dc.identifier.doi doi:10.1371/journal.pone.0024560
dc.description.version Publisher's PDF
dc.type.coar journal article
dc.description.reviewstatus peerReviewed
dc.relation.issn 1932-6203
dc.type.version publishedVersion

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