National-scale strategic approaches for managing introduced plants : insights from Australian acacias in South Africa

Show simple item record Van Wilgen, Brian W. Dyer, Colin Hoffmann, John H. Ivey, Philip Le Maitre, D.C. (David Carlyle) Moore, Joslin L. Richardson, D.M. (David Mark), 1958- Rouget, Mathieu Wannenburgh, Andrew Wilson, John R.U. 2012-06-04T10:32:21Z 2012-06-04T10:32:21Z 2011-05
dc.description.abstract AIM : 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. LOCATION : South Africa. METHODS : 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). We consider options for combining available tactics and management practices. We 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, we identified strategic goals and proposed the combinations of management practices to move the system in the desired direction. RESULTS : We identified six strategic goals that in combination would apply to eight species categories. We 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. MAIN CONCLUSIONS : 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. Our 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. en
dc.description.librarian nf2012 en
dc.description.sponsorship The Working for Water programme and the DST-NRF Centre of Excellence for Invasion Biology. en_US
dc.description.uri en_US
dc.identifier.citation Van Wilgen, BW, Dyer, C, Hoffmann, JH, Ivey, P, Le Maitre, D, Moore, JL, Richardson, DM, Rouget, M, Wannenburgh, A & Wilson, JRU 2011, 'National-scale strategic approaches for managing introduced plants : insights from Australian acacias in South Africa', Diversity and Distributions, vol. 17, no. 5, pp.1060-1075. en
dc.identifier.issn 1366-9516 (print)
dc.identifier.issn 1472-4642 (online)
dc.identifier.other 10.1111/j.1472-4642.2011.00785.x
dc.language.iso en en_US
dc.publisher Wiley-Blackwell en_US
dc.rights © 2011 Blackwell Publishing Ltd. The definite version is available at en_US
dc.subject Adaptive management (Environmental management) en
dc.subject Invasive alien species en
dc.subject Resource economics en
dc.subject Australian acacias en
dc.subject.lcsh Adaptive natural resource management -- South Africa en
dc.subject.lcsh Biological invasions -- South Africa en
dc.subject.lcsh Introduced organisms -- Biological control -- South Africa en
dc.subject.lcsh Ecosystem services -- South Africa en
dc.title National-scale strategic approaches for managing introduced plants : insights from Australian acacias in South Africa en
dc.type Postprint Article en

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