Van Wilgen, BWDyer, CHoffmann, JHIvey, PLe Maitre, David CMoore, JLRichardson, DMRouget, MWannenburgh, AWilson, RU2011-10-272011-10-272011-09Van Wilgen, BW, Dyer, C, Hoffmann, JH et al. 2011. National-scale strategic approaches for managing introduced plants: insights from Australian acacias in South Africa. Diversity and Distributions, Vol 17(5), pp 1060-10751472-46421366-9516http://onlinelibrary.wiley.com/doi/10.1111/j.1472-4642.2011.00785.x/abstracthttp://hdl.handle.net/10204/5258Copyright: 2011 Blackwell Publishing - ABSTRACT ONLYA range of approaches and philosophies underpin national-level strategies for managing invasive alien plants. This study presents a strategy for the management of taxa that both have value and do harm. Insights were derived from examining Australian Acacia species in South Africa (c. 70 species introduced, mostly > 150 years ago; some have commercial and other values; 14 species are invasive, causing substantial ecological and economic damage). The authors consider options for combining available tactics and management practices. They defined (1) categories of species based on invaded area (a surrogate for impact) and the value of benefits generated and (2) management regions based on habitat suitability and degree of invasion. For each category and region, they identified strategic goals and proposed the combinations of management practices to move the system in the desired direction. The authors identified six strategic goals that in combination would apply to eight species categories. They further identified 14 management practices that could be strategically combined to achieve these goals for each category in five discrete regions. When used in appropriate combinations, the prospect of achieving the strategic goal will be maximized. As the outcomes of management cannot be accurately predicted, management must be adaptive, requiring continuous monitoring and assessment, and realignment of goals if necessary. Invasive Australian Acacia species in South Africa continue to spread and cause undesirable impacts, despite a considerable investment into management. This is because the various practices have historically been uncoordinated in what can be best described as a strategy of hope. The study's proposed strategy offers the best possible chance of achieving goals, and it is the first to address invasive alien species that have both positive value and negative impacts.enAdaptive managementBiological controlBiological invasionsEcosystem servicesInvasive alien speciesResource economicsNational-scale strategic approaches for managing introduced plants: insights from Australian acacias in South AfricaArticleVan Wilgen, B., Dyer, C., Hoffmann, J., Ivey, P., Le Maitre, D. C., Moore, J., ... Wilson, R. (2011). National-scale strategic approaches for managing introduced plants: insights from Australian acacias in South Africa. http://hdl.handle.net/10204/5258Van Wilgen, BW, C Dyer, JH Hoffmann, P Ivey, David C Le Maitre, JL Moore, DM Richardson, M Rouget, A Wannenburgh, and RU Wilson "National-scale strategic approaches for managing introduced plants: insights from Australian acacias in South Africa." (2011) http://hdl.handle.net/10204/5258Van Wilgen B, Dyer C, Hoffmann J, Ivey P, Le Maitre DC, Moore J, et al. National-scale strategic approaches for managing introduced plants: insights from Australian acacias in South Africa. 2011; http://hdl.handle.net/10204/5258.TY - Article AU - Van Wilgen, BW AU - Dyer, C AU - Hoffmann, JH AU - Ivey, P AU - Le Maitre, David C AU - Moore, JL AU - Richardson, DM AU - Rouget, M AU - Wannenburgh, A AU - Wilson, RU AB - A range of approaches and philosophies underpin national-level strategies for managing invasive alien plants. This study presents a strategy for the management of taxa that both have value and do harm. Insights were derived from examining Australian Acacia species in South Africa (c. 70 species introduced, mostly > 150 years ago; some have commercial and other values; 14 species are invasive, causing substantial ecological and economic damage). The authors consider options for combining available tactics and management practices. They defined (1) categories of species based on invaded area (a surrogate for impact) and the value of benefits generated and (2) management regions based on habitat suitability and degree of invasion. For each category and region, they identified strategic goals and proposed the combinations of management practices to move the system in the desired direction. The authors identified six strategic goals that in combination would apply to eight species categories. They further identified 14 management practices that could be strategically combined to achieve these goals for each category in five discrete regions. When used in appropriate combinations, the prospect of achieving the strategic goal will be maximized. As the outcomes of management cannot be accurately predicted, management must be adaptive, requiring continuous monitoring and assessment, and realignment of goals if necessary. Invasive Australian Acacia species in South Africa continue to spread and cause undesirable impacts, despite a considerable investment into management. This is because the various practices have historically been uncoordinated in what can be best described as a strategy of hope. The study's proposed strategy offers the best possible chance of achieving goals, and it is the first to address invasive alien species that have both positive value and negative impacts. DA - 2011-09 DB - ResearchSpace DP - CSIR KW - Adaptive management KW - Biological control KW - Biological invasions KW - Ecosystem services KW - Invasive alien species KW - Resource economics LK - https://researchspace.csir.co.za PY - 2011 SM - 1472-4642 SM - 1366-9516 T1 - National-scale strategic approaches for managing introduced plants: insights from Australian acacias in South Africa TI - National-scale strategic approaches for managing introduced plants: insights from Australian acacias in South Africa UR - http://hdl.handle.net/10204/5258 ER -