Maximizing return on investment in conservation

William Murdoch, Stephen Polasky, Kerrie A. Wilson, Hugh P. Possingham, Peter Kareiva, Rebecca Shaw

Research output: Contribution to journalArticlepeer-review

255 Scopus citations

Abstract

Global conservation needs far exceed the available resources, so scarce resources must be used cost-effectively. Although many conservation priory-setting frameworks used by NGO's or public agencies explicitly claim to emphasize efficiency or wise investment, none actually incorporates costs in a formal return-on-investment (ROI) framework. We illustrate here how an ROI framework can be applied to real world resource allocation decisions faced by conservation organizations. We present two examples: (1) allocating resources to purchase land in 21 ecoregions that make up the Temperate Forest Habitat in the US; (2) allocating resources among a variety of conservation actions (not just land purchase) in Mediterranean habitats, with rates of habitat loss factored into the analysis. An important feature of both case studies is that costs vary by orders of magnitude, depending on where or how one is doing conservation. Second, because costs and biodiversity are not well correlated, enormous savings are possible by applying an ROI analysis. Moreover, recommended priorities after including costs in the calculations often deviate substantially from priorities based solely on biodiversity measures. Hence we argue that a major effort of conservationist biologists should be to include and record the costs of conservation actions. If serious attention is not given to returns on investment, it implies that "money is no object.".

Original languageEnglish (US)
Pages (from-to)375-388
Number of pages14
JournalBiological Conservation
Volume139
Issue number3-4
DOIs
StatePublished - Oct 1 2007

Keywords

  • Benefit
  • Conservation planning
  • Cost
  • Maximizing gain
  • Minimizing loss
  • Species-area curve
  • Species-investment curve

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