A trait specific model of competition in a spatially structured plant community

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dc.contributor.author Warren, John M.
dc.contributor.author Topping, Chris
dc.date.accessioned 2008-12-09T10:27:40Z
dc.date.available 2008-12-09T10:27:40Z
dc.date.issued 2004-12-01
dc.identifier.citation Warren , J M & Topping , C 2004 , ' A trait specific model of competition in a spatially structured plant community ' Ecological Modelling , vol 180 , no. 4 , pp. 477-485 . , 10.1016/j.ecolmodel.2004.04.033 en
dc.identifier.other PURE: 91351
dc.identifier.other dspace: 2160/1473
dc.identifier.uri http://hdl.handle.net/2160/1473
dc.description John Warren and Chris Topping (2004). A trait specific model of competition in a spatially structured plant community. Ecological Modelling, 180 pp.477-485 RAE2008 en
dc.description.abstract The non-random dispersal of plant propagules is thought to counter competitive exclusion and thus promote the survival of competitively inferior species. We investigated this process by modelling the outcome of interactions between species with competitive ability defined as a function of both life-history traits and the environment with both random and clustered dispersal strategies and in environmentally homogeneous and heterogeneous environments. Four main results emerged: (1) environmental heterogeneity was seen to promote co-existence in conjunction with associated trait variation for tolerance to the environmental variable and where this trait variation was effectively limited by ‘trade-off’ such that no single species had an overall competitive advantage, (2) consistent with theory, random dispersal appeared to enhance the likelihood of competitive exclusion, whereas clustering favoured co-existence, (3) the ecological outcome of interactions between dispersal and competitive relationships varied as a function of the trait determining the competitive advantage within a particular environment, and (4) promotion of co-existence by clustered dispersal was most marked when associated with environmental heterogeneity. It is argued that these results suggest that current ecological models of species interactions may need to be modified to incorporate a more realistic understanding of competitive ability if we are to better understand the factors effecting species co-existence. en
dc.format.extent 9 en
dc.language.iso eng
dc.relation.ispartof Ecological Modelling en
dc.title A trait specific model of competition in a spatially structured plant community en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1016/j.ecolmodel.2004.04.033
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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