Effects of recreational activity and livestock grazing on habitat use by breeding birds in Cottonwood Forests along the South Fork Snake River effectsofrecreat48saab Year: 1998 B LAND USE Grazed Recreation Unmanaged 80 70 60 50 40 30 20 10 p= b ab Small I Medium LJ Large PATCH SIZE Fig 8. Mean percentage of canopy cover in each land-use type (A) and patch-size class (B). Vertical lines represent 1 SE. Within each graph, different lower-case letters indicate that corresponding means are significantly different at p < 26

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