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dc.contributor.authorMineur, F.
dc.contributor.authorDavies, A. J.
dc.contributor.authorMaggs, C. A.
dc.contributor.authorVerlaque, M.
dc.contributor.authorJohnson, M. P.
dc.date.accessioned2018-09-20T16:17:56Z
dc.date.available2018-09-20T16:17:56Z
dc.date.issued2010-04-21
dc.identifier.citationMineur, F. Davies, A. J.; Maggs, C. A.; Verlaque, M.; Johnson, M. P. (2010). Fronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time. Proceedings of the Royal Society B: Biological Sciences 277 (1694), 2693-2701
dc.identifier.issn0962-8452,1471-2954
dc.identifier.urihttp://hdl.handle.net/10379/12910
dc.description.abstractNot all introduced (invasive) species in a region will spread from a single point of introduction. Long-distance dispersal or further introductions can obscure the pattern of spread, but the regional importance of such processes is difficult to gauge. These difficulties are further compounded when information on the multiple scale process of invasive species range expansion is reduced to one-dimensional estimates of spread (e. g. km yr(-1)). We therefore compared the results of two different metrics of range expansion: maximum linear rate of spread and accumulation of occupied grid squares (50 x 50 km) over time. An analysis of records for 54 species of introduced marine macrophytes in the Mediterranean and northeast Atlantic revealed cases where the invasion process was probably missed (e. g. Atlantic Bonnemaisonia hamifera) and suggested cases of secondary introductions or erratic jump dispersal (Dasysiphonia sp. and Womersleyella setacea). A majority of species analysed showed evidence for an accumulation of invaded sites without a clear invasion front. Estimates of spread rate are increasing for more recent introductions. The increase is greater than can be accounted for by temporally varying search effort and implies a historical increase in vector efficiency and/or a decreased resistance of native communities to invasion.
dc.publisherThe Royal Society
dc.relation.ispartofProceedings of the Royal Society B: Biological Sciences
dc.subjectdispersal
dc.subjectcoastal environment
dc.subjectspatial spread
dc.subjectvectors
dc.subjectaliens
dc.subjectmacroalgae
dc.subjectplant invasions
dc.subjectbiological invasion
dc.subjectdispersal
dc.subjectmacroalgae
dc.subjectrhodophyta
dc.subjectattachment
dc.subjectdynamics
dc.subjectseaweeds
dc.titleFronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time
dc.typeArticle
dc.identifier.doi10.1098/rspb.2010.0494
dc.local.publishedsourcehttp://rspb.royalsocietypublishing.org/content/royprsb/277/1694/2693.full.pdf
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