Alien plant invasions in South Africa: Driving forces and the human dimension

dc.contributor.authorLe Maitre, David C
dc.contributor.authorRichardson, David M
dc.contributor.authorChapman, R Arthur
dc.date.accessioned2018-03-22T10:40:28Z
dc.date.available2018-03-22T10:40:28Z
dc.date.issued2004
dc.date.updated2016-01-14T09:48:22Z
dc.description.abstractInvasive alien plants pose a substantial threat to the rich biodiversity of South Africa, and to the sustained delivery of a wide range of ecosystem services. Biological invasions are driven by human activities and mediated by culturally shaped values and ethics. This paper explores the human dimensions of alien plant invasions in South Africa. We consider four primary forces, those which directly influence the likelihood and rate of invasion — arrival of propagules; changes in disturbance regimes; changes in the availability of limiting factors; and fragmentation of the landscape — and the roles of 22 secondary driving forces in shaping the outcomes of the four primary driving forces. Human societies and their dynamics and activities are an integral part of each of the secondary driving forces. A map of the interactions between and among the primary and secondary driving forces shows how they are interlinked and influence each other — either positively or negatively, or switching between the two. There are two key points for intervention: prevention of the introduction of propagules of potentially invasive species and developing collaborative initiatives with enterprises that rely largely on alien species (for example, horticulture, agriculture and forestry, including community forestry) to minimize the introduction and use of potentially invasive species. An example of the first type of intervention would be to implement more effective inspection systems at international border and customs posts. This type of intervention can only be effective if those who are directly affected — whether businessmen, tourists or migrants — understand the requirement for these measures, and collaborate. The need to build public awareness of the critical importance of the human dimension of invasions emerges as a key theme from this analysis and is the basis for better-informed decisions, more effective control programmes and a reduction of further invasions.
dc.identifier.apacitationLe Maitre, D. C., Richardson, D. M., & Chapman, R. A. (2004). Alien plant invasions in South Africa: Driving forces and the human dimension. <i>South African Journal of Science</i>, http://hdl.handle.net/11427/27696en_ZA
dc.identifier.chicagocitationLe Maitre, David C, David M Richardson, and R Arthur Chapman "Alien plant invasions in South Africa: Driving forces and the human dimension." <i>South African Journal of Science</i> (2004) http://hdl.handle.net/11427/27696en_ZA
dc.identifier.citationLe Maitre, D. C., Richardson, D. M., & Chapman, R. A. (2004). Alien plant invasions in South Africa: driving forces and the human dimension: working for water. South African Journal of Science, 100(1 & 2), p-103.
dc.identifier.ris TY - Journal Article AU - Le Maitre, David C AU - Richardson, David M AU - Chapman, R Arthur AB - Invasive alien plants pose a substantial threat to the rich biodiversity of South Africa, and to the sustained delivery of a wide range of ecosystem services. Biological invasions are driven by human activities and mediated by culturally shaped values and ethics. This paper explores the human dimensions of alien plant invasions in South Africa. We consider four primary forces, those which directly influence the likelihood and rate of invasion — arrival of propagules; changes in disturbance regimes; changes in the availability of limiting factors; and fragmentation of the landscape — and the roles of 22 secondary driving forces in shaping the outcomes of the four primary driving forces. Human societies and their dynamics and activities are an integral part of each of the secondary driving forces. A map of the interactions between and among the primary and secondary driving forces shows how they are interlinked and influence each other — either positively or negatively, or switching between the two. There are two key points for intervention: prevention of the introduction of propagules of potentially invasive species and developing collaborative initiatives with enterprises that rely largely on alien species (for example, horticulture, agriculture and forestry, including community forestry) to minimize the introduction and use of potentially invasive species. An example of the first type of intervention would be to implement more effective inspection systems at international border and customs posts. This type of intervention can only be effective if those who are directly affected — whether businessmen, tourists or migrants — understand the requirement for these measures, and collaborate. The need to build public awareness of the critical importance of the human dimension of invasions emerges as a key theme from this analysis and is the basis for better-informed decisions, more effective control programmes and a reduction of further invasions. DA - 2004 DB - OpenUCT DP - University of Cape Town J1 - South African Journal of Science LK - https://open.uct.ac.za PB - University of Cape Town PY - 2004 T1 - Alien plant invasions in South Africa: Driving forces and the human dimension TI - Alien plant invasions in South Africa: Driving forces and the human dimension UR - http://hdl.handle.net/11427/27696 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/27696
dc.identifier.vancouvercitationLe Maitre DC, Richardson DM, Chapman RA. Alien plant invasions in South Africa: Driving forces and the human dimension. South African Journal of Science. 2004; http://hdl.handle.net/11427/27696.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.sourceSouth African Journal of Science
dc.source.urihttps://www.sajs.co.za/
dc.titleAlien plant invasions in South Africa: Driving forces and the human dimension
dc.typeJournal Article
uct.type.filetypeText
uct.type.filetypeImage
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