A Practical Comparison of Viability Models Used for Management of Endangered and Threatened Anadromous Pacific Salmonids
| Autor: | D. Shallin Busch, Thomas D. Cooney, Thomas N. Williams, Peter W. Lawson, Mary Ruckelshaus, Steven T. Lindley, Paul McElhany, David A. Boughton, Norma Jean Sands, Thomas C. Wainwright, Brian C. Spence, Michelle M. McClure |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Fish migration
education.field_of_study Extinction Ecology business.industry Ecology (disciplines) Population Environmental resource management Endangered species social sciences Management Monitoring Policy and Law Aquatic Science humanities Geography Multiple Models Threatened species education business Population status Ecology Evolution Behavior and Systematics |
| Zdroj: | North American Journal of Fisheries Management. 33:1125-1141 |
| ISSN: | 1548-8675 0275-5947 |
| DOI: | 10.1080/02755947.2013.824933 |
| Popis: | This study considered whether different population viability analyses give similar estimates of extinction risk across management contexts. We compared the performance of population viability analyses developed by numerous scientific teams to estimate extinction risk of anadromous Pacific salmonids listed under the U.S. Endangered Species Act and challenged each analysis with data from 34 populations. We found variation in estimated extinction risk among analytical techniques, which was driven by varying model assumptions and the inherent uncertainty of risk forecasts. This result indicates that the scientific teams developed techniques that perform differently. We recommend that managers minimize uncertainty in risk estimates by using multiple models tailored to the local ecology. Assessment of relative extinction risk was less sensitive to model assumptions than was assessment of absolute extinction risk. Thus, the former method is better for comparing population status and raises caution about... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text