Arid
DOI10.1002/jwmg.21308
Evaluating Dall’s Sheep Habitat Use via Camera Traps
Dertien, Jeremy S.1; Doherty, Paul F., Jr.1; Bagley, Calvin F.2; Haddix, John A.3; Brinkman, Aleya R.4; Neipert, Elizabeth S.2
通讯作者Dertien, Jeremy S.
来源期刊JOURNAL OF WILDLIFE MANAGEMENT
ISSN0022-541X
EISSN1937-2817
出版年2017
卷号81期号:8页码:1457-1467
英文摘要

Anthropogenic disturbances, such as military training, potentially affect mountain ungulate populations. Assessing the spatiotemporal occupancy or habitat use of a wildlife population can assist with planning of potentially disrupting activities. Currently, military training is expanding into potential Dall’s sheep (Ovis dalli dalli) habitat within 2 training areas of Fort Wainwright, Alaska. The 2 study areas included Molybdenum Ridge, a 10-km long geologically isolated granite ridgeline on the northern periphery of the Alaska Range and Black Rapids Training Area, a steeper and smaller area within the mountain range and bordered by the Delta River. The United States Army requires a better understanding of sheep habitat use in these 2 areas to identify how training could affect the population and to reduce overlap of training and high sheep occupancy. We used an array of 54 spatially balanced camera traps, taking triggered and hourly time lapse images, to determine Dall’s sheep habitat use based on seasonal and site covariates. Camera traps operated for a continuous 15-month sampling period and captured nearly 8,000 images of sheep. Our occupancy models indicated that abiotic covariates such as slope, snow depth, and distance to escape terrain were the most important factors determining habitat use. Seasonal differences in habitat use indicated higher use during winter and spring for Molybdenum Ridge, and higher habitat use during the summer for Black Rapids Training Area. Detection probabilities were constant temporally and were higher if the camera was positioned on a wildlife trail versus off trail. Our results suggest that the best opportunity to minimize training interactions with Dall’s sheep is to conduct training in early-July to early-September, specifically in areas with <60% slope and >500 m from escape terrain. (C) 2017 The Wildlife Society.


英文关键词Alaska camera traps Dall’s sheep habitat use military lands occupancy models Ovis dalli dalli
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000417628900015
WOS关键词DESERT BIGHORN SHEEP ; OVIS-DALLI ; MOUNTAIN SHEEP ; ACTIVITY PATTERNS ; MARKED ANIMALS ; STONES SHEEP ; MILITARY ; BEHAVIOR ; POPULATION ; OCCUPANCY
WOS类目Ecology ; Zoology
WOS研究方向Environmental Sciences & Ecology ; Zoology
来源机构Colorado State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/200896
作者单位1.Colorado State Univ, Dept Fish Wildlife & Conservat Biol, 1474 Campus Delivery, Ft Collins, CO 80523 USA;
2.Colorado State Univ, Ctr Environm Management Mil Lands, 1490 Campus Delivery, Ft Collins, CO 80523 USA;
3.US Army Garrison Ft Wainwright, Environm Div, 3023 Engn Pl, Ft Wainwright, AK 99703 USA;
4.US Army Garrison Ft Wainwright, Environm Div, Ctr Environm Management Mil Lands, 3023 Engn Pl, Ft Wainwright, AK 99703 USA
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GB/T 7714
Dertien, Jeremy S.,Doherty, Paul F., Jr.,Bagley, Calvin F.,等. Evaluating Dall’s Sheep Habitat Use via Camera Traps[J]. Colorado State University,2017,81(8):1457-1467.
APA Dertien, Jeremy S.,Doherty, Paul F., Jr.,Bagley, Calvin F.,Haddix, John A.,Brinkman, Aleya R.,&Neipert, Elizabeth S..(2017).Evaluating Dall’s Sheep Habitat Use via Camera Traps.JOURNAL OF WILDLIFE MANAGEMENT,81(8),1457-1467.
MLA Dertien, Jeremy S.,et al."Evaluating Dall’s Sheep Habitat Use via Camera Traps".JOURNAL OF WILDLIFE MANAGEMENT 81.8(2017):1457-1467.
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