thinning to cover. 2,400-m long-line transects in 4 600-m legs along cardinal bearings for bird surveys. Juniper removal + Southern OR Sagebrush habitats Abundance Survey of all birds Abundance Holmes et al. seen or heard at continued to 2015 cut sites. increase annually after conifer removal; benefits may not yet be fully realized as birds continue to recolonize cuts through time. + Juniper removal Central OR Mountain big sagebrush Bird density Compared Bird communities successional gradient (birds/ha/yr) vegetative observed across et al. structure and bird landscape types, 2007 communities impacts surmised among 4 from results. successional Infrequent to no states observations in landscapes with juniper. + / - Juniper removal Southeastern Sagebrush Steppe, Occurrence Fixed-radius point Green-tailed Noson et al. OR mountain big sagebrush count Towhee showed a 2006 curvilinear relationship to juniper. Initial encroachment benefits the bird, but peaks at about 33% of landscape before negatively impacting the species
thinning to cover. 2,400-m long-line transects in 4 600-m legs along cardinal bearings for bird surveys. Juniper removal + Southern OR Sagebrush habitats Abundance Survey of all birds seen or heard at cut sites. Abundance continued to increase annually after conifer removal; benefits may not yet be fully realized as birds continue to recolonize cuts through time. Holmes et al. 2015 Juniper removal + Central OR Mountain big sagebrush successional gradient Bird density (birds/ha/yr) Compared vegetative structure and bird communities among 4 successional states Bird communities observed across landscape types, impacts surmised from results. Infrequent to no observations in landscapes with juniper. et al. 2007 Juniper removal + / - Southeastern OR Sagebrush Steppe, mountain big sagebrush Occurrence Fixed-radius point count Green-tailed Towhee showed a curvilinear relationship to juniper. Initial encroachment benefits the bird, but peaks at about 33% of landscape before negatively impacting the species Noson et al. 2006
Sagebrush%20birds%20WAFWA%20draft%2010-27-16.docx