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Maximizing a new quantity in sequential reserve selection

Published online by Cambridge University Press:  19 December 2013

ADAM W. SCHAPAUGH  and
ANDREW J. TYRE
ADAM W. SCHAPAUGH*
Affiliation:
School of Natural Resources, Hardin Hall, 3310 Holdrege Street, University of Nebraska-Lincoln, Lincoln, Nebraska 68510, USA
ANDREW J. TYRE
Affiliation:
School of Natural Resources, Hardin Hall, 3310 Holdrege Street, University of Nebraska-Lincoln, Lincoln, Nebraska 68510, USA
*
*Correspondence: Dr Adam Schapaugh Tel: +1 785 317-2571 e-mail: adam.schapaugh@huskers.unl.edu
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Summary

The fundamental goal of conservation planning is biodiversity persistence, yet most reserve selection methods prioritize sites using occurrence data. Numerous empirical studies support the notion that defining and measuring objectives in terms of species richness (where the value of a site is equal to the number of species it contains, or contributes to an existing reserve network) can be inadequate for maintaining biodiversity in the long-term. An existing site-assessment framework that implicitly maximized the persistence probability of multiple species was integrated with a dynamic optimization model. The problem of sequential reserve selection as a Markov decision process was combined with stochastic dynamic programming to find the optimal solution. The approach represents a compromise between representation-based approaches (maximizing occurrences) and more complex tools, like spatially-explicit population models. The method, the inherent problems and interesting conclusions are illustrated with a land acquisition case study on the central Platte River.

Keywords

Bayesian networkMarkov decision processreserve adequacyreserve selectionstochastic dynamic programming
Type
THEMATIC SECTION: Spatial Simulation Models in Planning for Resilience
Information
Environmental Conservation , Volume 41 , Issue 2 , June 2014 , pp. 198 - 205
Copyright
Copyright © Foundation for Environmental Conservation 2013 

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