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Cost-effective management of invasive species using linear-quadratic control

  • Blackwood, Julie
  • Hastings, Alan
  • Costello, Christopher

The removal of invasive species is the first step toward restoring an ecosystem following invasion. We develop spatially-explicit, dynamic optimal control strategies for a large class of invasion problems using linear-quadratic control. This approach allows us to produce new insights that help guide policy that could not have emerged from existing models. We assume adults are sedentary, and heterogeneous patches are connected via dispersal of offspring. We develop a generalized approach to optimally manage species across time and space and apply the framework to several examples, primarily based on Spartina alterniflora. General conclusions are drawn and we show that strong connectivity makes invasive control much more costly, demonstrating that reducing connectivity can be a cost-effective part of invasive species control.

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Article provided by Elsevier in its journal Ecological Economics.

Volume (Year): 69 (2010)
Issue (Month): 3 (January)
Pages: 519-527

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Handle: RePEc:eee:ecolec:v:69:y:2010:i:3:p:519-527
Contact details of provider: Web page: http://www.elsevier.com/locate/ecolecon

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  1. Bhat, Mahadev G. & Huffaker, Ray G., 2007. "Management of a transboundary wildlife population: A self-enforcing cooperative agreement with renegotiation and variable transfer payments," Journal of Environmental Economics and Management, Elsevier, vol. 53(1), pages 54-67, January.
  2. Sanchirico, James N. & Wilen, James E., 2005. "Optimal spatial management of renewable resources: matching policy scope to ecosystem scale," Journal of Environmental Economics and Management, Elsevier, vol. 50(1), pages 23-46, July.
  3. Kenneth L. Judd, 1998. "Numerical Methods in Economics," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262100711, June.
  4. Pimentel, David & Zuniga, Rodolfo & Morrison, Doug, 2005. "Update on the environmental and economic costs associated with alien-invasive species in the United States," Ecological Economics, Elsevier, vol. 52(3), pages 273-288, February.
  5. Costello, Christopher & Polasky, Stephen, 2008. "Optimal harvesting of stochastic spatial resources," Journal of Environmental Economics and Management, Elsevier, vol. 56(1), pages 1-18, July.
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