Title
Harvesting in an eight-species ecosystem
Abbreviated Journal Title
J.Environ.Econ.Manage.
Keywords
ecosystems and economics; bioeconomic harvesting; multispecies ecosystem; SYSTEMS; HYPOTHESIS; PREDATION; Business; Economics; Environmental Studies
Abstract
The theory for a general equilibrium ecosystem model that can include large number of interacting species is presented. Features include: (1) individual plants and animals are assumed to behave as if they are maximizing their net energy intake, (2) short- and long-run equilibriums are obtained, (3) species' population adjustments depend on individual net energies. The theory is applied using simulations of an eight-species Alaskan marine ecosystem for which a "natural" equilibrium is calculated. Humans are introduced by adding a regulated open access fishery that harvests one of the species. Fishing impacts the fish population as well as the populations of other species, including Stellar sea lions, an endangered species. The sensitivity of fish and nonfish species populations to harvesting are calculated. (C) 2003 Published by Elsevier Science (USA).
Journal Title
Journal of Environmental Economics and Management
Volume
45
Issue/Number
3
Publication Date
1-1-2003
Document Type
Article
Language
English
First Page
589
Last Page
611
WOS Identifier
ISSN
0095-0696
Recommended Citation
"Harvesting in an eight-species ecosystem" (2003). Faculty Bibliography 2000s. 3750.
https://stars.library.ucf.edu/facultybib2000/3750