Assessing land-use impacts on viability of intermountain trouts using Bayesian belief networks
- Forest Service, Boise, ID (United States). Intermountain Research Station
Many salmonid populations of the intermountain region of North America are threatened by habitat degradation resulting from changing land-use practices. Public lands managed by the USDA Forest Service and USDI Bureau of Land Management comprise a significant portion of the remaining suitable habitat. Public land-use decisions must consider the potential effects on sensitive species. A computer-aided viability assessment model is presented which can help anticipate impacts of management actions on resident trout populations. Central to this system is a Bayesian belief network that links physical habitat characteristics directly to reproduction and survival parameters of a population viability model. Recognizing that such linkages are imprecise and knowledge is uncertain, this system provides probabilistic risk assessments of land-use impacts. Preliminary results suggest that the principal threats to population viability arise from a combination of chronic habitat degradation and increased risks of major or catastrophic disturbances.
- OSTI ID:
- 49540
- Report Number(s):
- CONF-9410273-; TRN: IM9523%%363
- Resource Relation:
- Conference: 15. annual meeting of the Society of Environmental Toxicology and Chemistry (SETAC), Denver, CO (United States), 30 Oct - 3 Nov 1994; Other Information: PBD: 1994; Related Information: Is Part Of Society of Environmental Toxicology and Chemistry 15th annual meeting: Abstract book. Ecological risk: Science, policy, law, and perception; PB: 286 p.
- Country of Publication:
- United States
- Language:
- English
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