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dc.contributor.author Kvalnes, Thomas
dc.contributor.author Ringsby, Thor Harald
dc.contributor.author Jensen, Henrik
dc.contributor.author Hagen, Ingerid Julie
dc.contributor.author Rønning, Bernt
dc.contributor.author Pärn, Henrik
dc.contributor.author Holand, Håkon
dc.contributor.author Engen, Steinar
dc.contributor.author Sæther, Bernt-Erik
dc.coverage.spatial Norway
dc.coverage.spatial Northern Europe
dc.date.accessioned 2017-05-12T14:52:14Z
dc.date.available 2017-05-12T14:52:14Z
dc.date.issued 2017-06-01
dc.identifier doi:10.5061/dryad.v50r8
dc.identifier.citation Kvalnes T, Ringsby TH, Jensen H, Hagen IJ, Rønning B, Pärn H, Holand H, Engen S, Saether B (2017) Reversal of response to artificial selection on body size in a wild passerine. Evolution 71(8): 2062-2079.
dc.identifier.issn 0014-3820
dc.identifier.uri http://hdl.handle.net/10255/dryad.145888
dc.description A general assumption in quantitative genetics is the existence of an intermediate phenotype with higher mean individual fitness in the average environment than more extreme phenotypes. Here we investigate the evolvability and presence of such a phenotype in wild bird populations from an eleven-year experiment with four years of artificial selection for long and short tarsus length, a proxy for body size. The experiment resulted in strong selection in the imposed directions. However, artificial selection was counteracted by reduced production of recruits in offspring of artificially selected parents. This resulted in weak natural selection against extreme trait values. Significant responses to artificial selection were observed at both the phenotypic and genetic level, followed by a significant return towards pre-experimental means. During artificial selection, the annual observed phenotypic response closely followed the predicted response from quantitative genetic theory (ryear = 0.96, rcohorts = 0.56). The rapid return to pre-experimental means was induced by three interacting mechanisms: selection for an intermediate phenotype, immigration and recombination between selected and unselected individuals. The results of this study demonstrates the evolvability of phenotypes and that selection may favour an intermediate phenotype in wild populations.
dc.relation.haspart doi:10.5061/dryad.v50r8/1
dc.relation.haspart doi:10.5061/dryad.v50r8/2
dc.relation.haspart doi:10.5061/dryad.v50r8/3
dc.relation.haspart doi:10.5061/dryad.v50r8/4
dc.relation.isreferencedby doi:10.1111/evo.13277
dc.subject age structure
dc.subject gene Flow
dc.subject individual fitness
dc.subject natural selection
dc.subject microevolution
dc.subject Passer domesticus
dc.title Data from: Reversal of response to artificial selection on body size in a wild passerine
dc.type Article
dwc.ScientificName Passer domesticus
dc.contributor.correspondingAuthor Kvalnes, Thomas
prism.publicationName Evolution

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Title Data on individuals.
Downloaded 2 times
Description Data set with demographic, phenotypic and fitness data on individuals in three house sparrow populations. Two of the populations were subjected to artificial selection for increased (high) or decreased (low) tarsus length over the years 2002-2005. The final population was kept as a control. No phenotypic manipulations were performed in the populations in the subsequent seven years (2006-2012).
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Title Pedigree high
Downloaded 1 time
Description Pedigree for a house sparrow population on the island Leka in Norway, subjected to artificial selection to increase tarsus length (high). Includes phenotyped individuals alive in the years 2002-2012.
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Title Pedigree low
Downloaded 1 time
Description Pedigree for a house sparrow population at the island Vega in Norway, subjected to artificial selection to decrease tarsus length (low). Includes phenotyped individuals alive in the years 2002-2012.
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Title Pedigree control
Downloaded 1 time
Description Pedigree for a house sparrow population at the island Hestmannøy in Norway. Includes phenotyped individuals alive in the years 2002-2012.
Download sparrow_experiment_2002-2012_pedigree_con...12.txt (15.09 Kb)
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