Chronic wasting disease undermines efforts to control the spread of brucellosis in the Greater Yellowstone Ecosystem
| Autor: | Charles Sims, David Finnoff, Dannele E. Peck, Richard D. Horan, Jim Logan, Matthew Maloney, Kevin L. Monteith, David Aadland, Jerod A. Merkle, Thach Winslow, Brant A. Schumaker |
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| Rok vydání: | 2020 |
| Předmět: |
Wyoming
0106 biological sciences Natural resource economics media_common.quotation_subject Population Wildlife 010603 evolutionary biology 01 natural sciences Brucellosis Ecosystem services medicine Animals education Ecosystem media_common education.field_of_study Ecology Cost–benefit analysis business.industry Deer 010604 marine biology & hydrobiology Provisioning Chronic wasting disease medicine.disease Geography Wasting Disease Chronic Cattle Livestock business Welfare |
| Zdroj: | Ecological Applications. 30 |
| ISSN: | 1939-5582 1051-0761 |
| DOI: | 10.1002/eap.2129 |
| Popis: | Wildlife diseases pose a substantial threat to the provisioning of ecosystem services. We use a novel modeling approach to study the potential loss of these services through the imminent introduction of chronic wasting disease (CWD) to elk populations in the Greater Yellowstone Ecosystem (GYE). A specific concern is that concentrating elk at feedgrounds may exacerbate the spread of CWD, whereas eliminating feedgrounds may increase the number of elk on private ranchlands and the transmission of a second disease, brucellosis, from elk to cattle. To evaluate the consequences of management strategies given the threat of two concurrent wildlife diseases, we develop a spatiotemporal bioeconomic model. GPS data from elk and landscape attributes are used to predict migratory behavior and population densities with and without supplementary feeding. We use a 4,800 km2 area around Pinedale, Wyoming containing four existing feedgrounds as a case study. For this area, we simulate welfare estimates under a variety of management strategies. Our results indicate that continuing to feed elk could result in substantial welfare losses for the case-study region. Therefore, to maximize the present value of economic net benefits generated by the local elk population upon CWD's arrival in the region, wildlife managers may wish to consider discontinuing elk feedgrounds while simultaneously developing new methods to mitigate the financial impact to ranchers of possible brucellosis transmission to livestock. More generally, our methods can be used to weigh the costs and benefits of human-wildlife interactions in the presence of multiple disease risks. |
| Databáze: | OpenAIRE |
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