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Quantifying individual- and community-level effects of competition using experimentally-determined null species pools
dc.contributor.authorRajaniemi, Tara K.en_US
dc.contributor.authorGoldberg, Deborah E.en_US
dc.date.accessioned2010-06-01T20:04:46Z
dc.date.available2010-06-01T20:04:46Z
dc.date.issued2000-06en_US
dc.identifier.citationRajaniemi, Tara K.; Goldberg, Deborah E. (2000). "Quantifying individual- and community-level effects of competition using experimentally-determined null species pools." Journal of Vegetation Science 11(3): 433-442. <http://hdl.handle.net/2027.42/73205>en_US
dc.identifier.issn1100-9233en_US
dc.identifier.issn1654-1103en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/73205
dc.description.abstractThe effects of competition on individual fitness and species diversity were investigated in a first-year old field by comparing the natural community to an experimentally-determined null community. The species pool for the null community was estimated from low-density plots, and hypothetical sample plots in the null community were constructed by random sampling from the species pool. Individual plants were larger in low-density plots than control plots, indicating that competition reduced individual fitness. Competition appeared to reduce diversity in half the plots (i.e. species richness and diversity were lower than in hypothetical null community plots with the same number of individuals), but did not affect diversity in the other plots. However, the reduction in diversity could be explained as an artifact caused by spatial aggregation in control plots. The magnitude of the effects of competition on diversity did not change with plot density, and no species consistently increased or decreased in relative abundance as plot density increased. We conclude that competition had no effect on diversity in this community, despite the strong effect on individual growth.en_US
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dc.format.extent3109 bytes
dc.format.mimetypeapplication/pdf
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dc.publisherBlackwell Publishing Ltden_US
dc.rights2000 IAVS - the International Association of Vegetation Scienceen_US
dc.subject.other1996)en_US
dc.subject.otherCompetitive Abilityen_US
dc.subject.otherNull Communityen_US
dc.subject.otherNull Modelen_US
dc.subject.otherOld-fielden_US
dc.subject.otherSpatial Aggregationen_US
dc.subject.otherSpecies Diversityen_US
dc.subject.otherSpecies Interactionen_US
dc.subject.otherSpecies Poolen_US
dc.subject.otherVoss (1972en_US
dc.subject.other1985en_US
dc.titleQuantifying individual- and community-level effects of competition using experimentally-determined null species poolsen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelNatural Resources and Environmenten_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Biology, University of Michigan, Ann Arbor, MI 48109, USAen_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/73205/1/3236636.pdf
dc.identifier.doi10.2307/3236636en_US
dc.identifier.sourceJournal of Vegetation Scienceen_US
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dc.owningcollnameInterdisciplinary and Peer-Reviewed


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