Author: Chad V. Olson
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 386
Book Description
Ecology and Roosting Behavior of Rough-legged Hawks (Buteo Lagopus) Wintering in the Mission Valley of Northwestern Montana
Author: Chad V. Olson
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 386
Book Description
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 386
Book Description
Winter Roosting Behavior of the Rough-legged Hawk (Buteo Lagopus)
Author: James Robert Byrne
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 210
Book Description
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 210
Book Description
Some Aspects of the Winter Ecology of the Rough-legged Hawk (Buteo Lagopus) in the Columbia Basin
Author: Edwin Roy Smith
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 158
Book Description
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 158
Book Description
The Winter Ecology of the Rough-legged Hawk (Buteo Lagopus).
Author: Gary D. Schnell
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 112
Book Description
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 112
Book Description
Sex-specific Habitat Selection of Rough-legged Hawks (Buteo Lagopus) Wintering in Western North America
Author: Genevieve C. Rozhon
Publisher:
ISBN:
Category : Rough-legged hawk
Languages : en
Pages : 108
Book Description
The rough-legged hawk (Buteo lagopus sanctijohannis) is one of the most under-studied raptor species in North America. As a species that exhibits reversed sexual dimorphism, sex-specific habitat preferences may exist. To investigate rough-legged hawk sex-specific habitat selection preferences, we equipped 17 rough-legged hawks (n = eight females, nine males) with GPS backpacks on their wintering grounds (n = six study areas) during the winter months of 2014 and 2015 in five states in western North America. I analyzed rough-legged hawk habitat selection in relation to sex at four spatial scales: nocturnal roosting site, 50% core range, 95% winter range, and 200% ecoregion range. Habitat selection variables included land cover, patch size, terrain ruggedness, indicators of anthropogenic disturbance, and measures of interspecific competition. Species and sex-specific preferences existed at each spatial scale, suggesting that hawks balanced competition for roosting and foraging habitat against prey availability and anthropogenic sources of disturbance when selecting habitat. At each spatial scale, female hawks preferentially selected for high quality habitat, while male rough-legged hawks used high as well as lower quality habitat (qualified by the presence of perching structures, human disturbance, and prey catchability). I posit that reversed sexual dimorphism in rough-legged hawks leads to social dominance of female hawks on their wintering grounds and that females may outcompete males for higher quality foraging habitat.
Publisher:
ISBN:
Category : Rough-legged hawk
Languages : en
Pages : 108
Book Description
The rough-legged hawk (Buteo lagopus sanctijohannis) is one of the most under-studied raptor species in North America. As a species that exhibits reversed sexual dimorphism, sex-specific habitat preferences may exist. To investigate rough-legged hawk sex-specific habitat selection preferences, we equipped 17 rough-legged hawks (n = eight females, nine males) with GPS backpacks on their wintering grounds (n = six study areas) during the winter months of 2014 and 2015 in five states in western North America. I analyzed rough-legged hawk habitat selection in relation to sex at four spatial scales: nocturnal roosting site, 50% core range, 95% winter range, and 200% ecoregion range. Habitat selection variables included land cover, patch size, terrain ruggedness, indicators of anthropogenic disturbance, and measures of interspecific competition. Species and sex-specific preferences existed at each spatial scale, suggesting that hawks balanced competition for roosting and foraging habitat against prey availability and anthropogenic sources of disturbance when selecting habitat. At each spatial scale, female hawks preferentially selected for high quality habitat, while male rough-legged hawks used high as well as lower quality habitat (qualified by the presence of perching structures, human disturbance, and prey catchability). I posit that reversed sexual dimorphism in rough-legged hawks leads to social dominance of female hawks on their wintering grounds and that females may outcompete males for higher quality foraging habitat.
Variation of the Rough-legged Hawk (Buteo Lagopus) in North America
Author: Tom J. Cade
Publisher:
ISBN:
Category : Buteo
Languages : en
Pages : 300
Book Description
Publisher:
ISBN:
Category : Buteo
Languages : en
Pages : 300
Book Description
The Winter Ecology of Rough-legged Hawks in West Central Illinois
Author: Douglas John Eno
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 148
Book Description
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 148
Book Description
Rough-legged Hawk
Author:
Publisher:
ISBN:
Category : Accipitridae
Languages : en
Pages : 32
Book Description
Publisher:
ISBN:
Category : Accipitridae
Languages : en
Pages : 32
Book Description
Behavioral and Predatory Energetics of a Wintering Rough-legged Hawk
Author: Rick Griffen
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 144
Book Description
Publisher:
ISBN:
Category : Hawks
Languages : en
Pages : 144
Book Description
Status Report on the Rough-legged Hawk, Buteo Lagopus, in Canada
Author: Robert Jeffrey Parsons
Publisher:
ISBN: 9780662262602
Category : Buteo
Languages : en
Pages : 28
Book Description
Publisher:
ISBN: 9780662262602
Category : Buteo
Languages : en
Pages : 28
Book Description