Bio Economics Of Invasive Species

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Invasive species and the intersection of Biology and Economics: A presentation based upon the book "Bioeconomics" by Keller Lodge et al 2009 OUPv

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  • Hi!

    I'm sure it needs your expert explanation, but the graphics are excellent, and funny
    ;-) Only suggestion is that you repeat your assumptions on the same page as your functions, in the first slides, as you did for 'Trait Based Assessment' in later slides.

    I like 'underestimating Infinity' caught that in your tweets, and wanted to argue with you..but if we have the correct technology [big if] I guess you are right..

    Lots of work..visually pleasing..would like to hear it presented..

    Cindy
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Bio Economics Of Invasive Species

  1. 1. Integrating Ecology, Economics, Policy & Management BIO-ECONOMICS OF INVASIVE SPECIES Presentation based upon book: edited by Reuben P. Keller, David M. Lodge, Mark A. Lewis and Jason F. Shogren UOP 2009 John Peter Thompson 2009
  2. 2. WHY BIO-ECONOMICS? Balancing flow of damage, until next control, delaying control, and controlling costs and damages between controls
  3. 3. Multidisciplinaryapproach
  4. 4. Bringing biology (ecology) & economics together  Framework for endogenous risk http://en.wikipedia.org/wiki/File:Complex-adaptive-system.jpg
  5. 5.  manager’s investment in control  investment in prevention (non- exclusive & non-rival consumption)  random uncertainty variable  research in/for the public good  endowed wealth x Q θ Β M Assumptions
  6. 6.  probability of a good state of nature, no damage from invasive species  probability of a bad state, damage from invasive species  money equivalent of realized damages  distribution of support bounded by (a,b) research to reduce  control P(Q; θ) 1 - P(Q; θ) D(x; θ) F(θ; β) c(Q, x) Functions
  7. 7.  social value of good state of nature  Net wealth  social value bad state of nature  change in damages affect social welfare  V0[m-c(Q, x )] w = m-c(Q, x) V1[m - D(x, θ) -- c(Q, x) V2[m-c(Q, x); D(x; θ)] Functions
  8. 8. Bioeconomics of Invasive Species Integrating Ecology, Economics, Policy, and Management Edited by Reuben P. Keller, David M. Lodge, Mark A. Lewis and Jason F. Shogren Endogenous Risk Model Challenges •Irreversibility of outcomes •Uncertainty over time •Timing of investments or action
  9. 9. THE ROLE OF UNCERTAINTY
  10. 10. “…function generally requires the consideration of opinions of experts or expert groups, of experience gained from comparable problems, and of additional information where necessary…” Linguistic & eco-biological uncertainty “…any study of biological complexity is rooted in the knowledge of biological reality, an expression for possible limit of human knowledge about ontological biological reality…” © Institute of Statics and Dynamics of Structures (TU Dresden) © Copyright by Luis Mateus Rocha 1997 The Smithsonian/NASA Astrophysics Data System
  11. 11. Opportunitycosts SUPPLY DEMAND QUANTITY PRICE Consumer surplus Production surplus
  12. 12. Underestimating infinity SUPPLY DEMAND QUANTITY PRICE Consumer surplus Production surplus
  13. 13. MODELS & DECISIONS Uncertainty and the potential of models http://www.gapingvoidgallery.com/images/quality005jGIF.gif
  14. 14. Entropy Measuring Uncertainty Our uncertainty is expressed quantitatively by the information which we do not have about the state occupied. Entropy, because it is expressed in terms of probabilities, depends on the observer. One person may have different knowledge of the system from another, and therefore would calculate a different numerical value for entropy. http://www.mtl.mit.edu/Courses/6.050/2003/notes/chapter10.pdf
  15. 15. BN = economic benefit of introducing new species Θ = new species VT = annual value of trade in new species α = number of invaders/number of introduced species A = proportional risk assessment D = annual cost of administrating risk assessment Trait based assessment Economic model trait based risk assessmaent Integrating Ecology, Economics, Policy, and Management Edited by Reuben P. Keller, David M. Lodge, Mark A. Lewis and Jason F. Shogren
  16. 16. Models “How much population biology is needed to manage invasive species?” (Simberloff 2003) •Niche •Gravity •Random utility •Reaction-diffusion •Spatial-phenemological •
  17. 17. Behaviorchoices inadynamic system x(t) = u(t)= du/dt= •time dependent state variable (invader abundance) •control strategies in aggregation •change in abundance to the change in control strategies Integrating Ecology, Economics, Policy, and Management Edited by Reuben P. Keller, David M. Lodge, Mark A. Lewis and Jason F. Shogren
  18. 18. INTEGRATING ASSESSMENTS ~Environecobiopragmophilosophic ~
  19. 19. SUSTAINABILITY thesuperwicked problem INVASIVE SPECIES ENERGY CLIMATE CHANGE POPULATION
  20. 20. • Freedom to innovate • Objectivity • Comprehensiveness • Openness/Transpare ncy • Simplicity  Shift the burden of proof  Scientific uncertainty  Recognize diverse positions  Least-harmful solution  Duty to take action
  21. 21. Science alone does not set management or policy goals, but informs them Translate research into user-friendly language Create personal networks Change is not instantaneous Focus on the immediately relevant

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