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Protecting an Endangered Species While Harvesting Its Prey in a General Equilibrium Ecosystem Model

  • David Finnoff
  • John Tschirhart

Because endangered species are in predator/prey, competitive, and other relationships with many species who share their habitat, efficient conservation requires simultaneously considering the needs of many species. Understanding ecological relationships and understanding how human activity affects these other species and indirectly affects endangered species are important to know when forming endangered species policies. We offer an integrated ecological /economic model that tracks both ecological relationships and human activities. The model is applied to an Alaskan marine ecosystem in which fish are harvested and Steller sea lions are endangered. Results illustrate the tradeoff between harvested fish and endangered sea lions.

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Article provided by University of Wisconsin Press in its journal Land Economics.

Volume (Year): 79 (2003)
Issue (Month): 2 ()
Pages: 160-180

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Handle: RePEc:uwp:landec:v:79:y:2003:i:2:p:160-180
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  1. Flaaten, Ola, 1991. "Bioeconomics of sustainable harvest of competing species," Journal of Environmental Economics and Management, Elsevier, vol. 20(2), pages 163-180, March.
  2. Montgomery Claire A. & Brown Jr. , Gardner M. & Adams Darius M., 1994. "The Marginal Cost of Species Preservation: The Northern Spotted Owl," Journal of Environmental Economics and Management, Elsevier, vol. 26(2), pages 111-128, March.
  3. Finnoff, David & Tschirhart, John, 2003. "Harvesting in an eight-species ecosystem," Journal of Environmental Economics and Management, Elsevier, vol. 45(3), pages 589-611, May.
  4. Tu, Pierre N. V. & Wilman, Elizabeth A., 1992. "A generalized predator- prey model: Uncertainty and management," Journal of Environmental Economics and Management, Elsevier, vol. 23(2), pages 123-138, September.
  5. Ragozin, David L. & Brown, Gardner Jr., 1985. "Harvest policies and nonmarket valuation in a predator -- prey system," Journal of Environmental Economics and Management, Elsevier, vol. 12(2), pages 155-168, June.
  6. Wolfgang Ströbele & Holger Wacker, 1995. "The economics of harvesting predator-prey systems," Journal of Economics, Springer, vol. 61(1), pages 65-81, February.
  7. Loomis, John B. & White, Douglas S., 1996. "Economic benefits of rare and endangered species: summary and meta-analysis," Ecological Economics, Elsevier, vol. 18(3), pages 197-206, September.
  8. Hannesson, Rognvaldur, 1983. "Optimal harvesting of ecologically interdependent fish species," Journal of Environmental Economics and Management, Elsevier, vol. 10(4), pages 329-345, December.
  9. Wilen, James & Brown, Gardner Jr., 1986. "Optimal recovery paths for perturbations of trophic level bioeconomic systems," Journal of Environmental Economics and Management, Elsevier, vol. 13(3), pages 225-234, September.
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