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dc.contributor.authorWares, John P
dc.contributor.authorPringle, James M
dc.date.accessioned2013-06-12T15:16:02Z
dc.date.available2013-06-12T15:16:02Z
dc.date.issued2008-08-18
dc.identifier.citationBMC Evolutionary Biology. 2008 Aug 18;8(1):235
dc.identifier.urihttp://dx.doi.org/10.1186/1471-2148-8-235
dc.identifier.urihttp://hdl.handle.net/10724/19753
dc.description.abstractAbstract Background Genetic estimates of effective population size often generate surprising results, including dramatically low ratios of effective population size to census size. This is particularly true for many marine species, and this effect has been associated with hypotheses of "sweepstakes" reproduction and selective hitchhiking. Results Here we show that in advective environments such as oceans and rivers, the mean asymmetric transport of passively dispersed reproductive propagules will act to limit the effective population size in species with a drifting developmental stage. As advection increases, effective population size becomes decoupled from census size as the persistence of novel genetic lineages is restricted to those that arise in a small upstream portion of the species domain. Conclusion This result leads to predictions about the maintenance of diversity in advective systems, and complements the "sweepstakes" hypothesis and other hypotheses proposed to explain cases of low allelic diversity in species with high fecundity. We describe the spatial extent of the species domain in which novel allelic diversity will be retained, thus determining how large an appropriately placed marine reserve must be to allow the persistence of endemic allelic diversity.
dc.titleDrift by drift: effective population size is limited by advection
dc.typeJournal Article
dc.date.updated2013-06-07T18:45:44Z
dc.description.versionPeer Reviewed
dc.language.rfc3066en
dc.rights.holderJohn P Wares et al.; licensee BioMed Central Ltd.


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