An ounce of prevention or a pound of cure: bioeconomic risk analysis of invasive species

Leung, Brian; Lodge, David M.; Finnoff, David; Shogren, Jason F.; Lewis, Mark A.; Lamberti, Gary A.

doi:10.1098/rspb.2002.2179

Cited by 802 publications

(625 citation statements)

References 24 publications

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“…Preventing the introduction of alien taxa is often more cost-effective than managing these taxa after introduction (Leung et al 2002;Puth and Post 2005;Wittenberg and Cock 2005;Simberloff 2006;Simberloff et al 2013). Most efforts to prevent the introduction of alien taxa into a new region focus on species-or pathway-centred approaches (Hulme 2006).…”

Section: Introductionmentioning

confidence: 99%

Understanding and managing the introduction pathways of alien taxa: South Africa as a case study

et al. 2015

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For the effective prevention of biological invasions, the pathways responsible for introductions must be understood and managed. However introduction pathways, particularly for developing nations, However the number of new plant and vertebrate escapes has increased over time. Invertebrates have been deliberately released or unintentionally introduced as contaminants or stowaways. For invertebrates the number of release, contaminant and stowaway introductions has increased, and most contaminants and stowaways have become invasive. As effective screening procedures are in place for invertebrates released for biological control, the major threats for South Africa are from vertebrate and plant escapes and invertebrate contaminants and stowaways. We recommend improvements to risk assessment and education to prevent escapes, and prioritised inspection strategies to reduce stowaway and contaminant introductions. Finally, as introduction pathways and introduced taxa change temporally, biosecurity decisions need to be informed by information on current and future pathways.

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Section: Introductionmentioning

confidence: 99%

Understanding and managing the introduction pathways of alien taxa: South Africa as a case study

et al. 2015

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“…The optimal strategy for prevention necessarily depends on the long-term costs to society of an invasion if it were to occur (Olson 2006;Leung et al 2002). Long-term damages from establishment depend on the likelihood of establishment, localized damage impacts, species' temporal characteristics such as lags and rates of spread, and effectiveness and costs of controls postestablishment, among other factors (Epanchin-Niell and Liebhold 2015; Leung et al 2002). Studies on prevention have variously accounted for how invader damage and growth characteristics, introduction probabilities, and the costs and effectiveness of postestablishment control options affect optimal investments in prevention.…”

Section: Invasion Preventionmentioning

confidence: 99%

Economics of invasive species policy and management

Epanchin‐Niell

2017

Biol Invasions

163

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This article examines the use of economic analysis to inform bioinvasion management, with particular focus on forest resources. Economics is key for understanding invasion processes, impacts, and decision-making. Biological invasions are driven by and affect economic activities at multiple scales and stages of an invasion. Bioeconomic modeling seeks to inform how resources can be optimally allocated across invasion management activities-including prevention, surveillance programs for early detection and management, and controlling invasion populations and spread-to minimize the long-term costs and damages. Economic analysis facilitates understanding of decisions by public and private decision-makers, gaps between these, and the design of policies to achieve socially desirable outcomes. Private decisionmakers may undercontrol invasions relative to socially optimal levels, because they generally account for their own costs and benefits of control but less often for broader ecosystem impacts or future spread across the landscape. Economic analysis considers approaches for increasing private invasion management and evaluates feedbacks between ecological and economic systems that can affect policy outcomes. Future research should continue evaluation and design of control strategies across the biosecurity continuum and across species to enhance cost-effectiveness, better incorporate uncertainty into policy design, increase focus on incentives and behavioral tools to influence private behaviors that affect invasion spread, and incorporate invasive species consideration within broader systems-focused science. In addition, challenges in valuing biodiversity and ecosystem service impacts and the costs and effectiveness of control measures are key data gaps. Greater collaboration between decision-makers and researchers will facilitate development and communication of usable economic research.

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“…Management efforts to reduce the risk of new introductions provide realistic opportunities to mitigate the ecological and economic uncertainty imposed by invasive ascidians, and they are more effective and less costly than eradication or curtailment of spread of established populations (Leung et al 2002;Lodge et al 2006;Hulme et al 2008;Reaser et al 2008). Besides prevention of new introductions, screening of areas of concerns regularly will be necessary to detect individuals that successfully evade prevention measures (Sephton et al 2011).…”

Section: Management Solutionsmentioning

confidence: 99%