Index Catalog // ScholarsArchive@OSU

Nesting pair density and abundance of ferruginous hawks (Buteo regalis) and golden eagles (Aquila chrysaetos) from aerial surveys in Wyoming

Creator:: Olson, Lucretia E., Oakleaf, Robert J., Squires, John R., Wallace, Zachary P., and Kennedy, Patricia L.
Abstract:: Raptors that inhabit sagebrush steppe and grassland ecosystems in the western United States may be threatened by continued loss and modification of their habitat due to energy development, conversion to agriculture, and human encroachment. Actions to protect these species are hampered by a lack of reliable data on such basic...
Resource Type:: Article
Full Text:: aerial surveys in Wyoming Olson, L. E., Oakleaf, R. J., Squires, J. R., Wallace, Z. P., & Kennedy, P. L

WallaceZacharyFishWildlifeHumanMadeStructures.pdf

Creator:: Wallace, Zachary P., Kennedy, Patricia L., Squires, John R., Olson, Lucretia E., and Oakleaf, Robert J.
Abstract:: Studies of anthropogenic impacts on wildlife may produce inconclusive or biased results if they fail to account for natural sources of variation in breeding performance and do not use probabilistic sampling at a scale functional for management. We used stratified random sampling and generalized linear mixed models to test hypotheses...
Full Text:: ferruginous hawk breeding performance Wallace, Z. P., Kennedy, P. L., Squires, J. R., Olson, L. E

WallaceReoccupancyBreedingTerritoriesAppendixS2.pdf

Creator:: Wallace, Zachary P., Kennedy, Patricia L., Squires, John R., Oakleaf, Robert J., Olson, Lucretia E., and Dugger, Katie M.
Abstract:: Grassland and shrubland birds are declining globally due in part to anthropogenic habitat modification. Because population performance of these species is also influenced by non-anthropogenic factors, it is important to incorporate all relevant ecological drivers into demographic models. We used design-based sampling and occupancy models to test relationships of environmental...
Full Text:: , Flockhart DTT, Houston CS, McLoughlin PD. Demography of ferruginous hawks breeding in western Canada. J

WallaceReoccupancyBreedingTerritories.PDF

Creator:: Wallace, Zachary P., Kennedy, Patricia L., Squires, John R., Oakleaf, Robert J., Olson, Lucretia E., and Dugger, Katie M.
Abstract:: Grassland and shrubland birds are declining globally due in part to anthropogenic habitat modification. Because population performance of these species is also influenced by non-anthropogenic factors, it is important to incorporate all relevant ecological drivers into demographic models. We used design-based sampling and occupancy models to test relationships of environmental...
Full Text:: Factors Zachary P. Wallace1,2¤*, Patricia L. Kennedy1,2, John R. Squires3, Robert J. Oakleaf4, Lucretia E

KennedyPatriciaFishWildlifeMultiSeasonOccupancyModels(SupportingInfo).pdf

Creator:: Bruggeman, Jason E., Swem, Ted, Andersen, David E., Kennedy, Patricia L., and Nigro, Debora
Abstract:: Critical information for evaluating the effectiveness of management strategies for species of concern include distinguishing seldom occupied (or low-quality) habitat from habitat that is frequently occupied and thus contributes substantially to population trends. Using multi-season models that account for imperfect detection and a long-term (1981-2002) dataset on migratory Arctic Peregrine...
Full Text:: best-approximating models 20 using ΔAIC values (Burnham & Anderson 2002). We retained models in each

Stable occupancy by breeding hawks (Buteo spp.) over 25 years on a privately managed bunchgrass prairie in northeastern Oregon, USA

Creator:: Kennedy, Patricia L., Bartuszevige, Anne M., Houle, Marcy, Humphrey, Ann B., Dugger, Katie M., and Williams, John
Abstract:: Potential for large prairie remnants to provide habitat for grassland-obligate wildlife may be compromised by nonsustainable range-management practices. In 1979–1980, high nesting densities of 3 species of hawks in the genus Buteo—Ferruginous Hawk (Buteo regalis), Red-tailed Hawk (B. jamaicensis), and Swainson’s Hawk (B. swainsoni)—were documented on the Zumwalt Prairie and...
Resource Type:: Article
Full Text:: , USA Kennedy, P. L., Bartuszevige, A. M., Houle, M., Humphrey, A. B., Dugger, K. M., & Williams, J

Dynamics of a recovering Arctic bird population: the importance of climate, density dependence, and site quality

Creator:: Bruggeman, Jason E., Swem, Ted, Andersen, David E., Kennedy, Patricia L., and Nigro, Debora
Abstract:: Intrinsic and extrinsic factors affect vital rates and population-level processes, and understanding these factors is paramount to devising successful management plans for wildlife species. For example, birds time migration in response, in part, to local and broadscale climate fluctuations to initiate breeding upon arrival to nesting territories, and prolonged inclement...
Resource Type:: Article
Full Text:: selection and multi-model inference. Springer-Verlag, New York, New York, USA. Cade, T. J., W. Burnham, and

Dynamics of a recovering Arctic bird population: the importance of climate, density dependence, and site quality

Creator:: Bruggeman, Jason E., Swem, Ted, Andersen, David E., Kennedy, Patricia L., and Nigro, Debora
Abstract:: Intrinsic and extrinsic factors affect vital rates and population-level processes, and understanding these factors is paramount to devising successful management plans for wildlife species. For example, birds time migration in response, in part, to local and broadscale climate fluctuations to initiate breeding upon arrival to nesting territories, and prolonged inclement...
Resource Type:: Article
Full Text:: selection and multi-model inference. Springer-Verlag, New York, New York, USA. Cade, T. J., W. Burnham, and

Nest Success and Cause-Specific Nest Failure of Grassland Passerines Breeding in Prairie Grazed by Livestock

Creator:: Johnson, Tracey N., Kennedy, Patricia L., and Etterson, Matthew A.
Abstract:: Livestock grazing is a widespread source of habitat modification, and may affect populations of ground-nesting grassland birds by influencing rates of nest failure. Nesting attempts can fail for various reasons, and determining risk of failure from specific causes associated with livestock grazing would enhance development of range management practices in...
Resource Type:: Article
Full Text:: . DelCurto and J. Williams, Oregon State University, unpublished data). We expected 40% of available

KennedyPatriciaFishWildlifeMultiSeasonOccupancyModels.pdf

Creator:: Bruggeman, Jason E., Swem, Ted, Andersen, David E., Kennedy, Patricia L., and Nigro, Debora
Abstract:: Critical information for evaluating the effectiveness of management strategies for species of concern include distinguishing seldom occupied (or low-quality) habitat from habitat that is frequently occupied and thus contributes substantially to population trends. Using multi-season models that account for imperfect detection and a long-term (1981-2002) dataset on migratory Arctic Peregrine...
Full Text:: population. J. Ornithol. 147: 428–435. Burnham, K.P. & Anderson, D.R. 2002. Model Selection and Multi-Model

ScholarsArchive@OSU

Nesting pair density and abundance of ferruginous hawks (Buteo regalis) and golden eagles (Aquila chrysaetos) from aerial surveys in Wyoming

WallaceZacharyFishWildlifeHumanMadeStructures.pdf

WallaceReoccupancyBreedingTerritoriesAppendixS2.pdf

WallaceReoccupancyBreedingTerritories.PDF

KennedyPatriciaFishWildlifeMultiSeasonOccupancyModels(SupportingInfo).pdf

Stable occupancy by breeding hawks (Buteo spp.) over 25 years on a privately managed bunchgrass prairie in northeastern Oregon, USA

Dynamics of a recovering Arctic bird population: the importance of climate, density dependence, and site quality

Dynamics of a recovering Arctic bird population: the importance of climate, density dependence, and site quality

Nest Success and Cause-Specific Nest Failure of Grassland Passerines Breeding in Prairie Grazed by Livestock

KennedyPatriciaFishWildlifeMultiSeasonOccupancyModels.pdf

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