Assessing carcass relocation for offsetting golden eagle mortality at wind energy facilities

Author:

Lonsdorf Eric V.1ORCID,Gerber James S.2ORCID,Ray Deepak2ORCID,Slater Steven J.3,Allison Taber D.4

Affiliation:

1. Department of Environmental Sciences Emory University, 400 Dowman Drive, Math and Science Center Atlanta GA 30322 USA

2. Institute on the Environment University of Minnesota 1954 Buford Avenue St. Paul MN 55108 USA

3. HawkWatch International 2240 South 900 East Salt Lake City UT 84106 USA

4. Renewable Energy Wildlife Institute 700 12th Street, NW Suite 700 Washington DC 20005 USA

Abstract

AbstractAs wind energy expands to achieve the United States' net zero emission goals, compensatory mitigation will be required to offset negative effects on birds and bats. The golden eagle (Aquila chrysaetos) is particularly susceptible to collision with wind turbines, but only 1 option for offsetting mortalities has been approved by the United States Fish and Wildlife Service despite many sources of anthropogenic‐caused mortality. We update a previously developed vehicle‐collision model with data collected during 3 winters from 2016 to 2019 and integrate a resource equivalency analysis so that relocation of road‐killed game animals can be used as mitigation to offset incidental mortality. We parameterized golden eagle behaviors using motion‐sensitive cameras placed at roadside carcasses. We quantified the effects of different carcass‐relocation schemes based on vehicle and carcass characteristics observed for Wyoming, USA. Our model results indicate that while eagles saved per relocated carcass depends on relocation interval and vehicle traffic volume, carcass relocation is a viable mitigation strategy; up to 7 eagles could be saved each year in some counties. While some uncertainty remains about the precise credit received from each carcass relocated, delaying the inclusion of additional mitigation methods prevents opportunities for conservation action. An adaptive management program could be a way forward where management and monitoring are combined to further improve estimates of mitigation credit.

Funder

National Fish and Wildlife Foundation

Publisher

Wiley

Subject

Nature and Landscape Conservation,Ecology,Ecology, Evolution, Behavior and Systematics,Nature and Landscape Conservation,Ecology,Ecology, Evolution, Behavior and Systematics

Reference24 articles.

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Conservation Letter: Raptor Collisions in Built Environments;Journal of Raptor Research;2024-07-05

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