气候变化领域集成服务门户(CCPortal): A specialized forest carnivore navigates landscape-level disturbance: Canada lynx in spruce-beetle impacted forests

CCPortal

DOI	10.1016/j.foreco.2020.118400
	A specialized forest carnivore navigates landscape-level disturbance: Canada lynx in spruce-beetle impacted forests
	Squires J.R.; Holbrook J.D.; Olson L.E.; Ivan J.S.; Ghormley R.W.; Lawrence R.L.
发表日期	2020
ISSN	0378-1127
卷号	475
英文摘要	Canada lynx (Lynx canadensis) occupy cold wet forests (boreal and subalpine forest) that were structured by natural disturbance processes for millennia. In the Southern Rocky Mountains, at the species’ southern range periphery, Canada lynx habitat has been recently impacted by large-scale disturbance from spruce beetles (Dendroctonus rufipennis). This disturbance poses a challenge for forest managers who must administer this novel landscape in ways that also facilitate timber salvage. To aid managers with this problem, we instrumented Canada lynx with GPS collars to document their selection of beetle impacted forests at spatial scales that spanned from landscapes to movement paths. We used a use-availability design based on remotely-sensed covariates to evaluate landscape- and path-level selection. We evaluated selection at the home-range scale in beetle-kill areas based on vegetation plots sampled in the field to quantify forest structure and composition. We found that across all scales of selection, Canada lynx selected forests with a higher proportion of beetle-kill trees that were generally larger in diameter than randomly available. Within home ranges, Canada lynx selected forests with greater live components of subalpine fir and live canopy of Engelmann spruce. During winter, Canada lynx exhibited functional responses, or disproportionate use relative to availability, for forest horizontal cover, diameter of beetle killed trees, live canopy of Engelmann spruce (Picea engelmannii) and subalpine fir (Abies lasiocarpa), and additive use (and consistent selection) for relative density of snowshoe hares and density of subcanopy subalpine fir 3–4.9 in. (7.6–12.4 cm) in diameter. We discuss our results in the context of balancing resource needs of Canada lynx with the desire to salvage timber in beetle-impacted forests. © 2020
英文关键词	Colorado; Dendroctonus rufipennis; Disturbance ecology; Forest carnivore; Forest insect; Functional response; Lynx canadensis; Resource selection; Spruce bark beetle; Step-selection functions
语种	英语
scopus关键词	Managers; Timber; Availability design; Dendroctonus rufipennis; Forest carnivores; Forest structure; Functional response; Natural disturbance; Southern rocky mountains; Subalpine forests; Forestry; beetle; boreal forest; carnivore; coniferous tree; ecosystem structure; environmental disturbance; felid; forest ecosystem; functional response; GPS; home range; movement; salvaging; spatial analysis; subalpine environment; Rocky Mountains; Abies lasiocarpa; Coleoptera; Dendroctonus rufipennis; Hexapoda; Lepus americanus; Lynx canadensis; Picea; Picea engelmannii; Scolytinae
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155051
作者单位	USDA Forest Service, Rocky Mountain Research Station, Missoula, MT, United States; Haub School of Environment and Natural Resources, Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States; Colorado Parks and Wildlife, Fort Collins, CO, United States; Rio Grande National Forest (retired), Monte VistaCO, United States; Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, United States
推荐引用方式 GB/T 7714	Squires J.R.,Holbrook J.D.,Olson L.E.,et al. A specialized forest carnivore navigates landscape-level disturbance: Canada lynx in spruce-beetle impacted forests[J],2020,475.
APA	Squires J.R.,Holbrook J.D.,Olson L.E.,Ivan J.S.,Ghormley R.W.,&Lawrence R.L..(2020).A specialized forest carnivore navigates landscape-level disturbance: Canada lynx in spruce-beetle impacted forests.Forest Ecology and Management,475.
MLA	Squires J.R.,et al."A specialized forest carnivore navigates landscape-level disturbance: Canada lynx in spruce-beetle impacted forests".Forest Ecology and Management 475(2020).