Species Distributions, Land Values, and Efficient Conservation

Author:

Ando Amy1234,Camm Jeffrey1234,Polasky Stephen1234,Solow Andrew1234

Affiliation:

1. A. Ando, Resources for the Future, 1616 P Street, NW, Washington, DC 20036, USA.

2. J. Camm, Department of Quantitative Analysis and Operations Management, University of Cincinnati, Cincinnati, OH 45221, USA.

3. S. Polasky, Department of Agricultural and Resource Economics, Oregon State University, Corvallis, OR 97331, USA.

4. A. Solow, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA.

Abstract

Efforts at species conservation in the United States have tended to be opportunistic and uncoordinated. Recently, however, ecologists and economists have begun to develop more systematic approaches. Here, the problem of efficiently allocating scarce conservation resources in the selection of sites for biological reserves is addressed. With the use of county-level data on land prices and the incidence of endangered species, it is shown that accounting for heterogeneity in land prices results in a substantial increase in efficiency in terms of either the cost of achieving a fixed coverage of species or the coverage attained from a fixed budget.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference14 articles.

1. Geographic Distribution of Endangered Species in the United States

2. L. G. Underhill Biol. Conserv. 70 85 (1994)

3. J. D. Camm S. Polasky A. R. Solow B. Csuti ibid. 78 353 (1996).

4. Formally an optimal solution to the SCP is found by solving the following: Minimize ∑j∈J cjxj subject to ∑j∈Ni xj≥1 for all i∈Iwhere J = { j | j = 1 … n } is the index set of candidate reserve sites I = { i | i = 1 … m } is the index set of species to be covered N i is the subset of J that contain species i c j is the loss associated with selecting site j and x j = 1 if site j is selected and 0 otherwise. An optimal solution to the MCP is found by solving the following: Maximize ∑i∈I yi subject to ∑j∈Ni xj≥yi for all i∈I and ∑j∈J cjxj≤bwhere y i = 1 if species i is contained in at least one of the selected sites and b is the maximum allowable loss. If loss is measured by the number of selected sites then c j = 1 for all j. If loss is measured by the cost of the selected sites then c j is the cost of establishing a reserve in site j.

5. M. Fisher and P. Kedia Manage. Sci. 36 674 (1990)

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