Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.10.017 |
Space use, forays, and habitat selection by California Spotted Owls (Strix occidentalis occidentalis) during the breeding season: New insights from high resolution GPS tracking | |
Blakey, Rachel V.1,2; Siegel, Rodney B.1; Webb, Elisabeth B.3; Dillingham, Colin P.4; Bauer, Rachel L.4; Johnson, Matthew4; Kesler, Dylan C.1 | |
2019-01-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 432页码:912-922 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Our current understanding of the relationship between imperiled species and forest management can benefit from global positioning system (GPS) technologies. Fauna of lateseral stage forests have historically been difficult to detect and track in rugged terrain, leading to challenges in movement characterization and conservation. We investigated movement of California Spotted Owls (Strix occidentalis occidentalis) using automated GPS loggers affixed to 15 owls in the northern Sierra Nevada, California. We used > 17,000 locations from individual owls to characterize homerange size, movement distances, and roosting and foraging habitat selection at four spatio-temporal scales (landscape, home range, foray, nightly) during the breeding season (April-August). Additionally, we assessed owl use of Protected Activity Centers (PACs), which are designated by the U.S.D.A. Forest Service to protect nesting and roosting habitat. Our results corroborated some previous findings about habitat requirements of California Spotted Owls, while also revealing new nuances in space use and habitat selection. Roosting and foraging owls selected stands with high canopy cover and large trees at multiple spatiotemporal scales, with foraging owls showing strongest selection at the largest (landscape) scale investigated. Although owls selected for PACs while foraging and roosting, PACs protected less than one quarter of foraging space use (volume of use) and fewer than half of observed roosts during the breeding season. Female owl home ranges were double the size of male home ranges, and distances travelled from the nest by females were 1.3 times greater than distances travelled by males, with non-breeding females travelling farthest and visiting up to six PACs during a single breeding season. Foraying behavior of this sort has not been documented previously in California Spotted Owls. Our findings support protection of later seral stage forest attributes for roosting and foraging California Spotted Owls. Given their selection for later seral forest attributes, strongest evidence of foraging habitat selection at the landscape scale, long distances travelled by owls and limited habitat protection afforded by PACs, habitat connectivity across the landscape is likely an important component for owl conservation, and distribution of current protected areas may be inadequate for this wide-ranging species. |
英文关键词 | California Spotted Owl Canopy cover Conservation Foraging Foray GPS tracking High resolution tracking Habitat selection Home range Later seral Management Movement Old growth Roost Sierra Nevada Strix occidentalis occidentalis |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000455068700088 |
WOS关键词 | COMPARING RESOURCE USE ; HOME-RANGE ; FORAGING HABITAT ; NATAL DISPERSAL ; SIERRA-NEVADA ; GENETIC MONOGAMY ; NESTING HABITAT ; OCCUPANCY ; BEHAVIOR ; TESTS |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23578 |
专题 | 气候变化 |
作者单位 | 1.Inst Bird Populat, POB 1346, Point Reyes Stn, CA 94956 USA; 2.Univ Missouri, Sch Nat Resources, Missouri Cooperat Fish & Wildlife Res Unit, 302 Anheuser Busch Nat Resources Bldg, Columbia, MO 65211 USA; 3.Univ Missouri, US Geol Survey, Missouri Cooperat Fish & Wildlife Res Unit, Sch Nat Resources, 302 Anheuser Busch Nat Resources Bldg, Columbia, MO 65211 USA; 4.US Forest Serv, USDA, Plumas Natl Forest, 159 Lawrence St, Quincy, CA 95971 USA |
推荐引用方式 GB/T 7714 | Blakey, Rachel V.,Siegel, Rodney B.,Webb, Elisabeth B.,et al. Space use, forays, and habitat selection by California Spotted Owls (Strix occidentalis occidentalis) during the breeding season: New insights from high resolution GPS tracking[J]. FOREST ECOLOGY AND MANAGEMENT,2019,432:912-922. |
APA | Blakey, Rachel V..,Siegel, Rodney B..,Webb, Elisabeth B..,Dillingham, Colin P..,Bauer, Rachel L..,...&Kesler, Dylan C..(2019).Space use, forays, and habitat selection by California Spotted Owls (Strix occidentalis occidentalis) during the breeding season: New insights from high resolution GPS tracking.FOREST ECOLOGY AND MANAGEMENT,432,912-922. |
MLA | Blakey, Rachel V.,et al."Space use, forays, and habitat selection by California Spotted Owls (Strix occidentalis occidentalis) during the breeding season: New insights from high resolution GPS tracking".FOREST ECOLOGY AND MANAGEMENT 432(2019):912-922. |
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