Canadian Forest Service Publications
Early Intervention Strategies for Invasive Species Management: Connections Between Risk Assessment, Prevention Efforts, Eradication, and Other Rapid Responses. In: Poland, Venette R.C. et al. (2021) T.M., Patel-Weynand T., Finch D.M., Miniat C.F., Hayes D.C., Lopez V.M. (eds) Invasive Species in Forests and Rangelands of the United States. Springer, Cham.
Issued by: Great Lakes Forestry Centre
Catalog ID: 40363
Availability: PDF (download)
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Plain Language Summary
Managing invasive species becomes increasingly difficult and expensive as populations of new pathogens, plants, insects, and other animals (i.e., pests) spread and reach high densities. Research over the past decade confirms the value of early intervention strategies intended to (1) prevent invasive species from arriving within an endangered area or (2) detect and respond quickly to new species incursions. The goal of such biosecurity approaches is to keep or return the density of invasive species to zero so that damages from those pests might be prevented or to confine populations to localized areas so that damage from those species might be limited. Prediction, prevention, early detection, eradication, and other rapid responses, all components of proactive management, are less costly and more effective than reactive tactics. Prediction is achieved through risk assessment (a process to forecast the likelihood and consequence of an invasion) and pathway analysis (a process to evaluate the means by which invasive species might be brought into an area of concern). Prevention is achieved through a variety of measures including regulations and quarantine treatments. Surveillance is fundamental to early detection, and if a target species is detected, the primary rapid responses are eradication, containment, or suppression. Early intervention strategies often operate at spatial scales that are much greater than the scale at which most land managers operate. Success thus requires effective coordination among researchers, regulators, and managers at international, national, sub-national, and local levels.