Details

Autor(en) / Beteiligte

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

Titel

Net Present Biodiversity Value and the Design of Biodiversity Offsets

Ist Teil von

• Ambio, 2013-02, Vol.42 (1), p.100-110

Ort / Verlag

Dordrecht: Springer

Erscheinungsjahr

2013

Quelle

MEDLINE

Beschreibungen/Notizen

• 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.