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dc.contributor.authorFoxcroft, L.C.
dc.contributor.authorJarosik, V.
dc.contributor.authorPysek, P.
dc.contributor.authorRichardson, D.M.
dc.contributor.authorRouget, M.
dc.date.accessioned2011-12-12T06:25:03Z
dc.date.available2011-12-12T06:25:03Z
dc.date.issued2011
dc.identifier.citationFoxcroft, L.C.; Jarosik, V.; Pysek, P.; Richardson, D.M. and Rouget, M. (2011) Protected-area boundaries as filters of plant invasions. Conservation Biology, 25(2), 400-405en
dc.identifier.urihttp://hdl.handle.net/123456789/989
dc.description.abstractHuman land uses surrounding protected areas provide propagules for colonization of these areas by non-native species, and corridors between protected-area networks and drainage systems of rivers provide pathways for long-distance dispersal of non-native species. Nevertheless, the influence of protected area boundaries on colonization of protected areas by invasive non-native species is unknown. We drew on a spatially explicit data set of more than 27,000 non-native plant presence records for South Africa’s Kruger National Park to examine the role of boundaries in preventing colonization of protected areas by non-native species. The number of records of non-native invasive plants declined rapidly beyond 1500 m inside the park; thus, we believe that the park boundary limited the spread of non-native plants. The number of non-native invasive plants inside the park was a function of the amount of water runoff, density of major roads, and the presence of natural vegetation outside the park. Of the types of human-induced disturbance, only the density of major roads outside the protected area significantly increased the number of non-native plant records. Our findings suggest that the probability of incursion of invasive plants into protected areas can be quantified reliably.en
dc.description.sponsorshipCentre of Excellence for Invasion Biologyen
dc.format.extent249409 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherSociety for Conservation Biologyen
dc.subjectbarriers to invasionen
dc.subjectKruger National Parken
dc.subjectnon-native invasive speciesen
dc.subjectoverland water flowen
dc.subjectprotected-area boundaryen
dc.titleProtected-area boundaries as filters of plant invasionsen
dc.typeJournalArticlesen
dc.cibjournalConservation Biologyen
dc.cibprojectNAen


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