期刊
JOURNAL OF WILDLIFE MANAGEMENT
卷 76, 期 5, 页码 1062-1071出版社
WILEY-BLACKWELL
DOI: 10.1002/jwmg.337
关键词
Centrocercus urophasianus; core regions; greater sage-grouse; migration; migratory; radio-telemetry; seasonal movements; Wyoming
资金
- Arch Coal
- Cameco Resources
- Devon Energy
- Foundation Coal West
- Pathfinder Energy
- Petroleum Association
- Powder River Coal
- RioTinto
- Rocky Mountain Power
- Sage Grouse Local Working Groups
- Wyoming Game and Fish Department (WGFD)
- Bureau of Land Management (BLM)
- U.S. Fish and Wildlife Service (USFWS)
- Anadarko Petroleum Corporation
- USDI BLM
- WGFD-Sage-Grouse Conservation Fund
- University of Wyoming School of Energy Resources
- Colorado Division of Wildlife
- Questar Exploration and Production
- North Dakota Game and Fish Department [W-67-R]
- BLM [ESA000013]
- U.S. Forest Service
- Rocky Mountain Research Station [05-JV-11221609-127]
- U.S. Forest Service Dakota Prairie National Grasslands [05-CS-11011800-022]
- South Dakota State University
- WGFD (Upper Snake River Sage-Grouse Working Group)
- Jackson Hole Airport
- Grand Teton National Park
- Yellowstone-to-Yukon Initiative
- EnCana Oil Gas, Inc.
- Ultra Resources Inc.
- Shell Rocky Mountain Production
- Hayden-Wing Associates
- BLM/WGFD
- ConocoPhillips
- EnCana Natural Gas
- Noble Energy
- Bates Hole/Shirley Basin Sage-Grouse Working Group
- BLM in Montana
- BLM in Wyoming
- BLM in Washington D.C.
- Montana Fish
- Wildlife and Parks
- National Fish and Wildlife Foundation
- National Science Foundation (EPS-CORE program)
- Montana Cooperative Fish and Wildlife Research Unit
- Petroleum Association of Wyoming
- Western Gas Resources Incorporated
- Wolf Creek Charitable Foundation
- Bighorn Environmental Consulting
- Anheuser-Busch Companies, Inc.
- Liz Claiborne
- Art Ortenberg Foundation
- Hewlett Foundation
- University of Montana
- Fidelity Exploration and Production Company
- Horizon Wind Energy, Iberdrola Renewables
- Bates Hole/Shirley Basin Local Sage-Grouse Working Group
- Peabody Energy Company's North Antelope Rochelle Mine (NARM)
- University of Wyoming
- Office of Surface Mining of the U.S. Department of the Interior
- Triton Coal Company
- Thunder Basin Coal Company
- NARM
Animals can require different habitat types throughout their annual cycles. When considering habitat prioritization, we need to explicitly consider habitat requirements throughout the annual cycle, particularly for species of conservation concern. Understanding annual habitat requirements begins with quantifying how far individuals move across landscapes between key life stages to access required habitats. We quantified individual interseasonal movements for greater sage-grouse (Centrocercus urophasianus; hereafter sage-grouse) using radio-telemetry spanning the majority of the species distribution in Wyoming. Sage-grouse are currently a candidate for listing under the United States Endangered Species Act and Wyoming is predicted to remain a stronghold for the species. Sage-grouse use distinct seasonal habitats throughout their annual cycle for breeding, brood rearing, and wintering. Average movement distances in Wyoming from nest sites to summer-late brood-rearing locations were 8.1 km (SE = 0.3 km; n = 828 individuals) and the average subsequent distances moved from summer sites to winter locations were 17.3 km (SE = 0.5 km; n = 607 individuals). Average nest-to-winter movements were 14.4 km (SE = 0.6 km; n = 434 individuals). We documented remarkable variation in the extent of movement distances both within and among sites across Wyoming, with some individuals remaining year-round in the same vicinity and others moving over 50 km between life stages. Our results suggest defining any of our populations as migratory or non-migratory is innappropriate as individual strategies vary widely. We compared movement distances of birds marked using Global Positioning System (GPS) and very high frequency (VHF) radio marking techniques and found no evidence that the heavier GPS radios limited movement. Furthermore, we examined the capacity of the sage-grouse core regions concept to capture seasonal locations. As expected, we found the core regions approach, which was developed based on lek data, was generally better at capturing the nesting locations than summer or winter locations. However, across Wyoming the sage-grouse breeding core regions still contained a relatively high percentage of summer and winter locations and seem to be a reasonable surrogate for non-breeding habitat when no other information exists. We suggest that conservation efforts for greater sage-grouse implicitly incorporate seasonal habitat needs because of high variation in the amount of overlap among breeding core regions and non-breeding habitat. (C) 2012 The Wildlife Society.
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