AMBIO

, Volume 42, Issue 1, pp 100–110 | Cite as

Net Present Biodiversity Value and the Design of Biodiversity Offsets

  • Jacob McC. Overton
  • R. T. Theo Stephens
  • Simon Ferrier
Report

Abstract

There is an urgent need to develop sound theory and practice for biodiversity offsets to provide a better basis for offset multipliers, to improve accounting for time delays in offset repayments, and to develop a common framework for evaluating in-kind and out-of-kind offsets. Here, we apply concepts and measures from systematic conservation planning and financial accounting to provide a basis for determining equity across type (of biodiversity), space, and time. We introduce net present biodiversity value (NPBV) as a theoretical and practical measure for defining the offset required to achieve no-net-loss. For evaluating equity in type and space we use measures of biodiversity value from systematic conservation planning. Time discount rates are used to address risk of non-repayment, and loss of utility. We illustrate these concepts and measures with two examples of biodiversity impact–offset transactions. Considerable further work is required to understand the characteristics of these approaches.

Keywords

Net present value Conservation planning Time discounting Benefit functions No-net-loss 

Notes

Acknowledgments

S. Walker improved the manuscript, and A. Austin edited the manuscript. J.M.O. was funded by the Biodiversity Offsets Programme, a Cross Departmental Research Pool science program and by the FRST Capability research fund. Comments from two anonymous reviewers improved the manuscript.

References

  1. Ball, I.R., H.P. Possingham, and M. Watts. 2009. Marxan and relatives: Software for spatial conservation prioritisation. In Spatial conservation prioritisation: quantitative methods and computational tools, ed. A. Moilanen, K.A. Wilson, and H.P. Possingham, 304 pp. Oxford: Oxford University Press.Google Scholar
  2. Bekessy, S.A., B.A. Wintle, D.B. Lindenmayer, M.A. McCarthy, M. Colyvan, M.A. Burgman, and H.P. Possingham. 2010. The biodiversity bank cannot be a lending bank. Conservation Letters 3: 151–158.CrossRefGoogle Scholar
  3. Bierman Jr., H., and S. Smidt. 1966. The capital budgeting decision, 2nd ed. New York: Macmillan.Google Scholar
  4. Bruggeman, D.J., M.L. Jones, F. Lupi, and K.T. Scribner. 2005. Landscape equivalency analysis: Methodology for estimating spatially explicit biodiversity credits. Environmental Management 36: 518–534.CrossRefGoogle Scholar
  5. BBOP (Business and Biodiversity Offsets Programme). 2009. Biodiversity offset design handbook. Washington, DC: BBOP. www.forest-trends.org/biodiversityoffsetsprogram/guidelines/odh.pdf.
  6. Dunford, R.W., T.C. Ginn, and W.H. Desvousges. 2004. The use of habitat equivalency analysis in natural resource damage assessments. Ecological Economics 48: 49–70.CrossRefGoogle Scholar
  7. Faith, D.P., and P.A. Walker. 1996. Integrating conservation and development: Effective trade-offs between biodiversity and in the selection of protected areas. Biodiversity and Conservation 5: 431–446.CrossRefGoogle Scholar
  8. Faith, D.P., P.A. Walker, J.R. Ive, and L. Belbin. 1996. Integrating conservation and forestry production: Exploring trade-offs between biodiversity and production in regional land-use assessment. Forest Ecology and Management 85: 251–260.CrossRefGoogle Scholar
  9. Ferrier, S., and M. Drielsma. 2010. Synthesis of pattern and process in biodiversity conservation assessment: A flexible whole-landscape modelling framework. Diversity and Distributions 16: 386–402.CrossRefGoogle Scholar
  10. Fox, J., and A. Nino-Murcia. 2005. Status of species conservation banking in the United States. Conservation Biology 19: 996–1007.CrossRefGoogle Scholar
  11. Gollier, C. 2010. Ecological discounting. Journal of Economic Theory 145: 812–829.CrossRefGoogle Scholar
  12. Gordon A., W.T. Langford, J.A. Todd, M.D. White, D.W. Mullerworth, and S.A. Bekessy. (2011). Assessing the impacts of biodiversity offset policies. Environmental Modelling & Software 26: 1481–1488.Google Scholar
  13. Hampicke, U. 2011. Climate change economics and discounted utilitarianism. Ecological Economics 72: 45–52.CrossRefGoogle Scholar
  14. Hartig, F., and M. Drechsler. 2008. The time horizon and its role in multiple species conservation planning. Biological Conservation 141: 2625–2631.CrossRefGoogle Scholar
  15. Kiesecker, J.M., H. Copeland, A. Pocewicz, N. Nibbelink, B. McKenney, J. Dahlke, M. Holloran, and D. Stroud. 2009. A framework for implementing biodiversity offsets, selecting sites and determining scale. BioScience 59: 77–84.CrossRefGoogle Scholar
  16. Kiesecker, J.M., H. Copeland, A. Pocewicz, and B. McKenney. 2010. Development by design: Blending landscape-level planning with the mitigation hierarchy. Frontiers in Ecology and the Environment 8: 261–266.CrossRefGoogle Scholar
  17. Margules, C.R., and R.L. Pressey. 2000. Systematic conservation planning. Nature 405: 243–253.CrossRefGoogle Scholar
  18. McKenney, B.A., and J.M. Kiesecker. 2010. Policy development for biodiversity offsets: A review of offset frameworks. Environmental Management 45: 165–176.CrossRefGoogle Scholar
  19. Moilanen, A. 2007. Landscape zonation, benefit functions and target-based planning: Unifying reserve selection strategies. Biological Conservation 134: 571–579.CrossRefGoogle Scholar
  20. Moilanen, A., A. van Teeffelen, Y. Ben-Haim, and S. Ferrier. 2008. How much compensation is enough? Explicit incorporation of uncertainty and time discounting when calculating offset ratios for impacted habitat. Restoration Ecology 17: 470–478.CrossRefGoogle Scholar
  21. Moilanen, A., K.A. Wilson, and H.P. Possingham (eds.). 2009. Spatial conservation prioritization: Quantitative methods and computational tools. Oxford: Oxford University Press.Google Scholar
  22. Nordhaus, W. 2007. A review of the “Stern Review on the Economics of Climate Change”. Journal of Economic Literature XLV: 686–702.Google Scholar
  23. Overton, J.McC., R. Price, R.T.T. Stephens, S. Cook, R. Earl, E. Wright, and S. Walker. 2010. Conservation planning and reporting using the vital sites model. Landcare Research Contract Report LC0910/064, 108 pp.Google Scholar
  24. Quetier, F., and S. Lavorel. 2011. Assessing ecological equivalence in biodiversity offset schemes: Key issues and solutions. Biological Conservation 144: 2991–2999.CrossRefGoogle Scholar
  25. Quigley, J.T., and D.J. Harper. 2005a. Effectiveness of fish habitat compensation in Canada in achieving no net loss. Environmental Management 37: 351–366.CrossRefGoogle Scholar
  26. Quigley, J.T., and D.J. Harper. 2005b. Compliance with Canada’s Fisheries Act: A field audit of habitat compensation projects. Environmental Management 37: 336–350.CrossRefGoogle Scholar
  27. Rodrigues, A.S.L., and T.M. Brooks. 2007. Shortcuts for biodiversity conservation planning: The effectiveness of surrogates. Annual Review of Ecology Evolution and Systematics 38: 713–773.CrossRefGoogle Scholar
  28. Salzman, J., and J.B. Ruhl. 2000. Currencies and the commodification of environmental law. Stanford Law Review 53: 607–694.CrossRefGoogle Scholar
  29. Smith, A.B. 2010. Caution with curves: Caveats for using the species-area relationship in conservation. Biological Conservation 143: 555–564.CrossRefGoogle Scholar
  30. Stephens, R.T.T., D.J. Brown, and N.J. Thornley. 2002. Measuring conservation achievement: concepts and their application over the Twizel area. Science for Conservation 200. Wellington: Department of Conservation.Google Scholar
  31. Stern, N., S. Peters, V. Bakhshi, A. Bowen, C. Cameron, S. Catovsky, D. Crane, S. Cruickshank, et al. 2006. Stern Review: The economics of climate change. London: HM Treasury.Google Scholar
  32. ten Kate, K., J. Bishop, and R. Bayon. 2004. Biodiversity offsets: Views, experience, and the business case, 95. Gland, Switzerland and Cambridge, UK: IUCN and Insight Investment.Google Scholar
  33. Veltman, V.C. 1995. Banking on the future of wetlands using federal law. Northwestern University Law Review 89: 654–689.Google Scholar
  34. Walker, S., A.L. Brower, R.T.T. Stephens, and W.G. Lee. 2009. Why bartering biodiversity fails. Conservation Letters 2: 149–157.CrossRefGoogle Scholar
  35. Weitzman, M.L. 2001. Gamma discounting. American Economic Review 91: 260–271.CrossRefGoogle Scholar

Copyright information

© Royal Swedish Academy of Sciences 2012

Authors and Affiliations

  • Jacob McC. Overton
    • 1
  • R. T. Theo Stephens
    • 2
  • Simon Ferrier
    • 3
  1. 1.Landcare ResearchHamiltonNew Zealand
  2. 2.Landcare ResearchDunedinNew Zealand
  3. 3.CSIRO Ecosystem SciencesCanberraAustralia

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