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dc.contributor.author Fitzpatrick, John Leo
dc.contributor.author Simmons, Leigh W.
dc.contributor.author Evans, Jonathan P.
dc.coverage.spatial Swan River
dc.coverage.spatial Claremont
dc.coverage.spatial Western Australia
dc.date.accessioned 2012-02-21T17:35:31Z
dc.date.available 2012-02-21T17:35:31Z
dc.date.issued 2012-03-21
dc.identifier doi:10.5061/dryad.307c3n10
dc.identifier.citation Fitzpatrick JL, Simmons LW, Evans JP (2012) Complex patterns of multivariate selection on the ejaculate of a broadcast spawning marine invertebrate. Evolution 66(8): 2451-2460.
dc.identifier.uri http://hdl.handle.net/10255/dryad.37939
dc.description Assessing how selection operates on several, potentially interacting, components of the ejaculate is a challenging endeavour. Ejaculates can be subject to natural and/or sexual selection, which can impose both linear (directional) and nonlinear (stabilizing, disruptive and correlational) selection on different ejaculate components. Most previous studies have examined linear selection of ejaculate components and, consequently, we know very little about patterns of nonlinear selection on the ejaculate. Even less is known about how selection acts on the ejaculate as a functionally integrated unit, despite evidence of covariance among ejaculate components. Here we assess how selection acts on multiple ejaculate components simultaneously in the broadcast spawning sessile invertebrate Mytilus galloprovincialis using the statistical tools of multivariate selection analyses. Our analyses of relative fertilization rates revealed complex patterns of selection on sperm velocity, motility and morphology. Interestingly, the most successful ejaculates were made up of slower-swimming sperm with relatively low percentages of motile cells, and sperm with smaller head volumes that swam in highly pronounced curved swimming trajectories. These results are consistent with an emerging body of literature on fertilization kinetics in broadcast spawners, and shed light on the fundamental nature of selection acting on the ejaculate as a functionally integrated unit.
dc.relation.haspart doi:10.5061/dryad.307c3n10/1
dc.relation.isreferencedby doi:10.1111/j.1558-5646.2012.01627.x
dc.relation.isreferencedby PMID:22834744
dc.subject Selection - Sexual
dc.subject Fitness
dc.subject Reproductive Strategies
dc.title Data from: Complex patterns of multivariate selection on the ejaculate of a broadcast spawning marine invertebrate
dc.type Article *
dwc.ScientificName Mytilus galloprovincialis
dc.contributor.correspondingAuthor Fitzpatrick, John Leo
prism.publicationName Evolution

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Title Fitzpatrick_et_al_Selection_Data
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Description Raw data used in multivariate selection analysis. Data include: proportion eggs fertilized, sperm density, mean sperm head volume (measured as spheroid ovoid volume), mean sperm flagellum length, composite sperm motility PC1 and PC2 scores, sperm age and egg age.
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