Final Environmental Impact Statement on Management for the Northern Spotted Owl in the National Forests

Final Environmental Impact Statement on Management for the Northern Spotted Owl in the National Forests PDF Author: United States. Forest Service
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 396

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Record of Decision for Amendments to Forest Service and Bureau of Land Management Planning Documents Within the Range of the Northern Spotted Owl

Record of Decision for Amendments to Forest Service and Bureau of Land Management Planning Documents Within the Range of the Northern Spotted Owl PDF Author:
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 248

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Standards and guidelines for management of habitat for late-successional and old-growth forest related species within the range of the northern spotted owl.

Management Recommendations for the Northern Goshawk in the Southwestern United States

Management Recommendations for the Northern Goshawk in the Southwestern United States PDF Author: United States. Forest Service. Southwestern Region. Northern Goshawk Scientific Committee
Publisher:
ISBN:
Category : Goshawk
Languages : en
Pages : 208

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Northern Spotted Owl Habitat Conservation Plan for Private Forestlands in California

Northern Spotted Owl Habitat Conservation Plan for Private Forestlands in California PDF Author: California. State Board of Forestry. Habitat Conservation Plan Steering Committee
Publisher:
ISBN:
Category : Habitat conservation
Languages : en
Pages : 252

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Of Spotted Owls, Old Growth, and New Policies

Of Spotted Owls, Old Growth, and New Policies PDF Author: Bruce G. Marcot
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 32

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Using Terrestrial Ecosystem Survey Data to Identify Potential Habitat for the Mexican Spotted Owl on National Forest System Lands

Using Terrestrial Ecosystem Survey Data to Identify Potential Habitat for the Mexican Spotted Owl on National Forest System Lands PDF Author: Joseph L. Ganey
Publisher:
ISBN:
Category : Ecological surveys
Languages : en
Pages : 32

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Report of the Interagency Scientific Committee to Address the Conservation of the Northern Spotted Owl

Report of the Interagency Scientific Committee to Address the Conservation of the Northern Spotted Owl PDF Author: United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Public Lands, National Parks, and Forests
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 396

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Northern Spotted Owl Effectiveness Monitoring Plan for the Northwest Forest Plan

Northern Spotted Owl Effectiveness Monitoring Plan for the Northwest Forest Plan PDF Author: Joseph Lint
Publisher:
ISBN:
Category : Northern spotted owl
Languages : en
Pages : 52

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Dietary Overlap Between Sympatric Mexican Spotted and Great Horned Owls in Arizona

Dietary Overlap Between Sympatric Mexican Spotted and Great Horned Owls in Arizona PDF Author: Joseph L. Ganey
Publisher:
ISBN:
Category : Great horned owl
Languages : en
Pages : 26

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We estimated diet composition of sympatric Mexican spotted (Strix occidentalis lucida, n = 7 pairs of owls) and great horned owls (Bubo virginianus, n = 4 pairs) in ponderosa pine (Pinus ponderosa) - Gambel oak (Quercus gambelii) forest, northern Arizona. Both species preyed on mammals, birds, and insects; great horned owls also ate lizards. Mammals dominated the diet of both species. Mammals comprised 63 and 62% of all prey items identified in diets of spotted and great horned owls, respectively, and 94 and 95% of prey biomass. Both species primarily preyed on a few groups of small mammals. Observed overlap in diet composition between species (0.95) was greater than expected based on null models of diet overlap, and the size range of prey taken overlapped entirely. Mean prey mass was similar for both species (great horned owl, 47.0 ± 7.4 g [SE], n = 94 items; spotted owl, 40.1 ± 1.8 g, n = 1,125 items). Great horned owls consumed larger proportions of diurnally active prey than spotted owls, which primarily consumed nocturnally active mammals. Our results, coupled with a previous analysis showing that these owls foraged in the same general areas (Ganey and others 1997), suggests that they could compete for food resources, which are assumed to be limiting in at least some years. They may minimize the potential for resource competition, however, by concentrating foraging activities in different habitats (Ganey and others 1997) and by foraging at different times, when different suites of prey species are active.

Northwest Forest Plan, the First 10 Years (1994-2003)

Northwest Forest Plan, the First 10 Years (1994-2003) PDF Author: Joseph Lint
Publisher:
ISBN:
Category : Northern spotted owl
Languages : en
Pages : 188

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