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DOI	10.1016/j.foreco.2020.118689
	The snag's the limit: Habitat selection modeling for the western purple martin in a managed forest landscape
	Sherman L.; Hagar J.
发表日期	2021
ISSN	0378-1127
卷号	480
英文摘要	The western purple martin (Progne subis arboricola), an avian insectivore, is a species of conservation concern throughout the Pacific Northwest. Compared to the well-studied eastern subspecies (Progne subis subis), little is known of the life history and biology of the western subspecies. Availability of breeding habitat is believed to be a major limiting factor for western purple martins in forested habitat, but fundamental information on their current distribution and selection of nesting habitat is deficient. To fill this gap, we compared habitat characteristics at three spatial scales (snag-level, stand-level [48.6 ha], landscape-level [314 ha]) surrounding nest snags occupied by purple martins in western Oregon to unoccupied sites. We found habitat for nesting purple martins was defined by the presence of moderately decayed snags with nest cavities, located well away from closed-canopy forest in sufficiently large (>15 ha) open areas. Our modeling efforts suggested suitable habitat was rare within the study region because: 1) snags were scarce on private industrial forest lands and 2) large disturbed patches were uncommon on federal lands. We conclude that a disturbance regime characterized by infrequent but major stand-replacing events, such as fire or timber harvest, is likely the key to maintaining breeding habitat for purple martins in upland forests in western Oregon. © 2020
英文关键词	Aerial insectivore; Cavity-nesters; Early seral forest; Habitat selection; Songbird; Swallow
语种	英语
scopus关键词	Conservation; Ecosystems; Breeding habitats; Current distribution; Disturbance regime; Habitat selection; Landscape level; Nesting habitats; Pacific Northwest; Suitable habitat; Forestry; breeding site; conservation status; ecological modeling; forest canopy; forest ecosystem; habitat selection; landscape; life history; nesting behavior; passerine; subspecies; Breeding; Conservation; Ecosystems; Forestry; Life; Oregon; Pacific Northwest; Selection; Oregon; Pacific Northwest; United States; Aves; Passeri; Progne; Progne subis; Progne subis subis
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/154828
作者单位	Department of Forest Ecosystems & Society, 312 Richardson Hall, Oregon State University, Corvallis, OR 97331, United States; U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, 777 NW 9th Street, Suite 400, Corvallis, OR 97330, United States
推荐引用方式 GB/T 7714	Sherman L.,Hagar J.. The snag's the limit: Habitat selection modeling for the western purple martin in a managed forest landscape[J],2021,480.
APA	Sherman L.,&Hagar J..(2021).The snag's the limit: Habitat selection modeling for the western purple martin in a managed forest landscape.Forest Ecology and Management,480.
MLA	Sherman L.,et al."The snag's the limit: Habitat selection modeling for the western purple martin in a managed forest landscape".Forest Ecology and Management 480(2021).