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dc.contributor.authorRahlao, S. J.
dc.contributor.authorMilton, S. J.
dc.contributor.authorEsler, K. J.
dc.contributor.authorBarnard, P.
dc.date.accessioned2011-05-23T06:47:19Z
dc.date.available2011-05-23T06:47:19Z
dc.date.issued2010
dc.identifier.citationRahlao SJ, Milton SJ, Esler KJ & Barnard P (2010). The distribution of invasive Pennisetum setaceum along roadsides in western South Africa: the role of corridor interchanges. Weed Research, 50, 537–543.en
dc.identifier.urihttp://hdl.handle.net/123456789/884
dc.description.abstractRoads and rivers may be dispersal corridors for invasive alien grass seeds that fly and float. These two systems interact at bridge interchanges that are also disturbed artificial habitats. The invasive grass Pennisetum setaceum (perennial fountain grass) establishes on roadsides and river banks and benefits from habitat conditions prevailing at these interchanges. The distribution of the grass across biomes and vegetation types and the influence of environmental variables were assessed. A road survey method was used to record and map the distribution of P. setaceum along 1 km roadside transects at 10 km intervals and at every road-river corridor interchange for 5112 km of South African national roads in the arid and semi-arid parts of the country. Pennisetum setaceum populations occurred in 10% of the total length sampled, including the interchanges. Fynbos Swartland Shale Renosterveld was the most significantly invaded amongst the vegetation types surveyed. Our results indicate that, although P. setaceum performs better on the interchanges, it does not preferentially colonise them over other parts of the landscape. The presence of P. setaceum was, however, closely associated with the presence of water bodies and disturbances away from the roads. Corridor interchanges should be considered important targets of both local and regional efforts to prevent and control P. setaceum invasions.en
dc.description.sponsorshipCentre of Excellence for Invasion Biologyen
dc.format.extent302056 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherEuropean Weed Research Societyen
dc.subjectdisturbanceen
dc.subjectinvasive alien speciesen
dc.subjectinflorescenceen
dc.subjectmanagementen
dc.subjectornamental grassen
dc.subjectperennial grassesen
dc.subjectroad surveyen
dc.titleThe distribution of invasive Pennisetum setaceum along roadsides in western South Africa: the role of corridor interchangesen
dc.typeJournalArticlesen
dc.cibjournalWeed Researchen
dc.cibprojectNAen


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