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Harvest and extinction in multi-species ecosystems

Publication ,  Journal Article
Potts, MD; Vincent, JR
Published in: Ecological Economics
April 1, 2008

A potential cost of harvesting in multi-species ecosystems is the extinction of nonharvested species that are at the same trophic level as the harvested species. Existing analytical models are not well-suited for studying this harvest externality because they focus on species interactions across trophic levels instead of within them. We identify the conditions under which the harvesting of a single species causes at least one extinction of nonharvested species at the same trophic level. We compare two harvest regimes: uniform management, in which a privately optimal harvest rate is applied to the entire ecosystem; and specialized management, in which a portion of the ecosystem is intensively managed for the harvested species and the rest is left unharvested. Which regime is more likely to result in extinction depends on the discount rate and on the harvested species' competitive ability and colonization rate compared to those of the other species. © 2007 Elsevier B.V. All rights reserved.

Duke Scholars

Published In

Ecological Economics

DOI

ISSN

0921-8009

Publication Date

April 1, 2008

Volume

65

Issue

2

Start / End Page

336 / 347

Related Subject Headings

  • Agricultural Economics & Policy
  • 3899 Other economics
  • 3801 Applied economics
  • 3103 Ecology
  • 1499 Other Economics
  • 1402 Applied Economics
  • 0502 Environmental Science and Management
 

Citation

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Potts, M. D., & Vincent, J. R. (2008). Harvest and extinction in multi-species ecosystems. Ecological Economics, 65(2), 336–347. https://doi.org/10.1016/j.ecolecon.2007.06.020
Potts, M. D., and J. R. Vincent. “Harvest and extinction in multi-species ecosystems.” Ecological Economics 65, no. 2 (April 1, 2008): 336–47. https://doi.org/10.1016/j.ecolecon.2007.06.020.
Potts MD, Vincent JR. Harvest and extinction in multi-species ecosystems. Ecological Economics. 2008 Apr 1;65(2):336–47.
Potts, M. D., and J. R. Vincent. “Harvest and extinction in multi-species ecosystems.” Ecological Economics, vol. 65, no. 2, Apr. 2008, pp. 336–47. Scopus, doi:10.1016/j.ecolecon.2007.06.020.
Potts MD, Vincent JR. Harvest and extinction in multi-species ecosystems. Ecological Economics. 2008 Apr 1;65(2):336–347.
Journal cover image

Published In

Ecological Economics

DOI

ISSN

0921-8009

Publication Date

April 1, 2008

Volume

65

Issue

2

Start / End Page

336 / 347

Related Subject Headings

  • Agricultural Economics & Policy
  • 3899 Other economics
  • 3801 Applied economics
  • 3103 Ecology
  • 1499 Other Economics
  • 1402 Applied Economics
  • 0502 Environmental Science and Management