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Rights Statements InC/1.0 , Open Access
Journal article
Habitat classification models for beaver (Castor canadensis) in the streams of the central Oregon Coast Range
Northwest science., Vol.72(2), pp.102-110
1998
Handle:
https://hdl.handle.net/2376/1217
Abstract
During 1988-1989, 22 stream habitat attibutes were measured and compared between 40 beaver-dam sites and 72 unoccupied stream sites to identify attributes associated with dam-site selection by beaver (Castor canadensis) in streams of the Drift Creek Basin, Lincoln County, Oregon. Beaver built dams in areas with wide valley-floors; narrow, low gradient streams; high grass/sedge cover; and low red alder (Alnus rubra) and shrub cover. Unoccupied sites lacked these characteristics. A discriminant function model correctly classified 83% of beaver-dam sites and 88% of unoccupied-stream sites with a chance-corrected classification rate of 69% (Cohen's Kappa statistic). We used 3 geomorphic attributes (stream width, gradient, and valley floor width) and developed a new Habitat Suitability Index (HSI) model for the basin. Land managers can use the discriminant function model or the HSI model to inventory potential beaver-dam sites along streams of the Oregon Coast Range. Information obtained from our habitat classification-models can be incorporated into plans to preserve unique riparian habitats maintained by beaver
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Details
- Title
- Habitat classification models for beaver (Castor canadensis) in the streams of the central Oregon Coast Range
- Creators
- Nobuya Suzuki (Author)William C. McComb (Author)
- Publication Details
- Northwest science., Vol.72(2), pp.102-110
- Academic Unit
- Northwest Science
- Publisher
- WSU Press
- Identifiers
- 99900502833901842
- Copyright
- In copyright ; openAccess ; http://rightsstatements.org/vocab/InC/1.0/ ; http://purl.org/eprint/accessRights/OpenAccess
- Language
- English
- Resource Type
- Journal article