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Relationships between depredation of nests of ground-dwelling birds and habitat structure and pattern

Creator:

Haensly, Thomas F.

Abstract:

Rates of predation on artificial nests and nests of pen-reared ring-necked pheasants (Phasianus colchicus), released in spring, were compared between strip and block habitats at different densities of nests. Nests in strips had rates of predation 4-7 times greater than nests in blocks, regardless of nest density. Differences between successful...

Resource Type:

Masters Thesis
Relationship between habitat changes and productivity of sage grouse at Hart Mountain National Antelope Refuge, Oregon

Creator:

Coggins, Kreg A.

Abstract:

From 1987-1997, Oregon State University conducted studies at Hart Mountain National Antelope Refuge (HMNAR) to better understand the relationship between grouse productivity and key habitat components. Early studies indicated sage grouse habitat preference and reproductive success were related to particular forbs (including legumes and milky juice composites) and structural characters...

Resource Type:

Masters Thesis
Habitat use by female greater sage grouse in relation to fire at Hart Mountain National Antelope Refuge, Oregon

Creator:

Byrne, Michael W.

Abstract:

The United States Fish and Wildlife Service currently uses fire as a management tool to improve Greater Sage Grouse (Centrocercus urophasianus Bonaparte) nesting and brood-rearing habitat at Hart Mountain National Antelope Refuge (HMNAR) in S.E. Oregon. Previous studies at HMNAR revealed use of burned areas by sage grouse throughout the...

Resource Type:

Masters Thesis