The Economic Consequences of Alien Plant Invasions: Examples of Impacts and Approaches to Sustainable Management in South Africa

By B. V. van Wilgen, D. M. Richardson, D. L. Le Maître, C. Marais, D. Magadlela. 2001

280 citations recorded by the source corpus.

Subfields: Economics and Econometrics, Insect Science, Nature and Landscape Conservation

View Paper: https://www.semanticscholar.org/paper/6d795d7e7238a75146be5a8318da14e881d3f050

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Citations in the corpus

Changes in the plant community of a Brazilian grassland savannah after 22 years of invasion by Pinus elliottii Engelm (2011, background): “…via biological interactions, or by affecting the growth environment of native species, such as light availability, and soil and hydrological processes (Vitousek 1986; Armstrong 1995; Le Maitre et al. 1996; Wilcove et al. 1998; D’Antonio et al. 1999; Rosenzweig 2001; Van Wilgen et al. 2001).”
Seed banks of invasive Australian Acacia species in South Africa: Role in invasiveness and options for management (2008, background): “The estimated cost to clear the alien plant invasions in South Africa is around US$ 1.2 billion, or US$ 60 million per year for 20 years (Van Wilgen et al., 2001).”
Benefits of Classical Biological Control for Managing Invasive Plants (2005, background): “Noxious weeds have invaded an estimated 10 million ha in South Africa (van Wilgen et al., 2001), where they are appropriating as many as 3.3 billion m3 (7 percent) of mean annual surface water runoff from catchments, riparian zones, and wetlands (Olckers, 1999).”
Plant Invasions and Invasibility of Plant Communities (2013, background): “…have clear economic implications for humans, e.g. as a result of reduced stream flow from watersheds in South African fynbos following alien tree invasions (Van Wilgen et al. 2001), or through disruption to fishing and navigation after invasion of aquatic plants such as Eichhornia crassipes.”
An economic assessment of the contribution of biological control to the management of invasive alien plants and to the protection of ecosystem services in South Africa (2010, background): “…2005; Culliney 2005; De Wit et al. 2001; Jarvis et al. 2006; Law 2007; McConnachie et al. 2003; Pimentel et al. 2005; Pringle and Heunis 2006; van Wilgen et al. 2000, 2001, 2004; van Wyk and van Wilgen 2002) have discussed or assessed the economic returns on investments in biological control,…”
Alien plant invasions in tropical and sub-tropical savannas: patterns, processes and prospects (2010, background): “Anthropogenic disturbances create habitats and conditions suitable for invasions by alien plants, thus forming multiple sources for further invasions into savanna systems (van Wilgen et al. 2001).”
Commercially Important Trees as Invasive Aliens – Towards Spatially Explicit Risk Assessment at a National Scale (2002, background): “Commercial forestry based on alien trees is a well-established feature of the South African landscape and economy, but the invasions that are associated with it will need to be managed to minimise conflicts around scarce resources, especially water (van Wilgen et al. 2001; Le Maitre et al. 2002).”
Identifying spatial components of ecological and evolutionary processes for regional conservation planning in the Cape Floristic Region, South Africa (2003, background): “Clearing of alien vegetation has received considerable attention under the Working for Water programme (Van Wilgen et al., 2001).”
Biological control in the management of invasive alien plants in South Africa, and the role of the Working for Water programme (2004, background): “Biological control is not a panacea; it is mostly a tool for enhancing the management of invasive alien plants, which are very costly to the South African economy.(30) It has been estimated that biological control has already reduced the overall budget for the management of problem plants in South A”