Mbi Day Three

MBI Workshop

Becky Epanchin-Niell

  • Motivating example of Rabies spatial control in Switzerland

  • 2012 Eco Let: should New Zealand survey for bark beetle? Cost of survellience, control, and damage. Epanchin-Niell et al. (2012)

  • 2012 JEEM spatial spread of star thistle: control spread and eradication as an integer programming problem in deterministic context. (with Wilen) Epanchin-Niell & Wilen (2012)

  • Breaking landscape into individual landowners makes it less valuable to control early.

Kat Shea

Brian Leung

“Data, uncertainty and risk in biological invasions”

  • Alien risk assessments Leung et al. (2012) , shows a dominance of rank scoring over truely quantitative approaches. Limitations to each.
  • It’s not the model complexity, but the implementation interface that poses the real barrier. Also need better integration needs.

Breakout session: Spatial strategies for management

Scott Barrett

PDG Control

  • back-and-forth with Paul: is second column redundant? Seems not: NPV when paying penalty that doesn’t exist is: profit under penalty (\(\Pi_0(x,h)\)) minus zero (adjustment cost), while scaling is set such that profit under penalty minus adjustment cost, \(\Pi_0(x,h) - \Pi_1(h, c_2)\). Also, better to normalize everything against the adjustment-free ENPV (\(Pi_0\)) than to normalize by the truth/simulation model (which differs in different cases).

See commit log for updated versions.


  • Rebecca S. Epanchin-Niell, Robert G. Haight, Ludek Berec, John M. Kean, Andrew M. Liebhold, Helen Regan, (2012) Optimal Surveillance And Eradication of Invasive Species in Heterogeneous Landscapes. Ecology Letters 15 803-812 10.1111/j.1461-0248.2012.01800.x
  • Rebecca S. Epanchin-Niell, James E. Wilen, (2012) Optimal Spatial Control of Biological Invasions. Journal of Environmental Economics And Management 63 260-270 10.1016/j.jeem.2011.10.003
  • A. R. Hall, A. D. Miller, H. C. Leggett, S. H. Roxburgh, A. Buckling, K. Shea, (2012) Diversity-Disturbance Relationships: Frequency And Intensity Interact. Biology Letters 8 768-771 10.1098/rsbl.2012.0282
  • Brian Leung, Nuria Roura-Pascual, Sven Bacher, Jaakko Heikkilä, Lluis Brotons, Mark A. Burgman, Katharina Dehnen-Schmutz, Franz Essl, Philip E. Hulme, David M. Richardson, Daniel Sol, Montserrat Vilà, Marcel Rejmanek, (2012) Teasing Apart Alien Species Risk Assessments: A Framework For Best Practices. Ecology Letters 15 1475-1493 10.1111/ele.12003
  • A. D. Miller, S. H. Roxburgh, K. Shea, (2011) How Frequency And Intensity Shape Diversity-Disturbance Relationships. Proceedings of The National Academy of Sciences 108 5643-5648 10.1073/pnas.1018594108
  • Adam David Miller, Stephen H. Roxburgh, Katriona Shea, (2011) Timing of Disturbance Alters Competitive Outcomes And Mechanisms of Coexistence in an Annual Plant Model. Theoretical Ecology 5 419-432 10.1007/s12080-011-0133-1