Index Catalog // ScholarsArchive@OSU

Habitat Selection by Greater Sage-Grouse During Winter in Southeastern Oregon

Creator:: Hagen, Christian A., Willis, Mitchell J., Glenn, Elizabeth M., and Anthony, Robert G.
Abstract:: The distribution and geographic range of Greater Sage-Grouse (Centrocercus urophasianus) have been reduced by 56% since European settlement. Although loss and fragmentation of sagebrush (Artemisia spp.) habitats have been cited as the primary causes for the decline of the species, degradation of existing habitat also has been considered an important...
Resource Type:: Article
Full Text:: ); however, habitat use during winter has not been thoroughly described throughout the species’ range (Hagen

An Observation of Clostridium perfringens in Greater Sage-Grouse

Creator:: Hagen, Christian A. and Bildfell, Robert J.
Abstract:: Mortality due to infectious diseases is seldom reported in the Greater Sage-Grouse (Centrocercus urophasianus). A case of necrotic enteritis associated with Clostridium perfringens type A is described in a free-ranging adult male sage-grouse in eastern Oregon. Clostridial enteritis is known to cause outbreaks of mortality in various domestic and wild...
Resource Type:: Article
Full Text:: birds (Hagen et al., 2002). We thank Peggy Dearing, Oregon State University Veterinary Diagnostic

Greater sage-grouse vital rates after wildfire

Creator:: Foster, Lee J., Dugger, Katie M., Hagen, Christian A., and Budeau, David A.
Abstract:: Greater sage-grouse (Centrocercus urophasianus) have been subject to long-term and continuing declines in population and habitat since European settlement of western North America. Increased wildfire activity constitutes a primary threat to the species in western portions of their range, with documented declines in wildfire-affected populations. Following a 187,000-ha wildfire in...
Resource Type:: Article
Full Text:: 97331, USA CHRISTIAN A. HAGEN, Oregon State University, Department of Fisheries and Wildlife, 104 Nash

A Meta-Analysis of Lesser Prairie-Chicken Nesting and Brood-Rearing Habitats: Implications for Habitat Management

Creator:: Hagen, Christian A., Grisham, Blacke A., Boal, Clint W., and Haukos, David A.
Abstract:: The distribution and range of lesser prairie-chicken (Tympanuchus pallidicinctus) has been reduced by >90% since European settlement of the Great Plains of North America. Currently, lesser prairie-chickens occupy 3 general vegetation communities: sand sagebrush (Artemisia filifolia), sand shinnery oak (Quercus havardii), and mixed-grass prairies juxtaposed with Conservation Reserve Program grasslands....
Resource Type:: Article
Full Text:: and brood-rearing habitats: Implications for habitat management Hagen, C. A., Grisham, B. A., Boal

Habitat selection by Greater Sage-Grouse during winter in southeastern Oregon

Creator:: Hagen, Christian A., Willis, Mitchell J., Glenn, Elizabeth M., and Anthony, Robert G.
Abstract:: The distribution and geographic range of Greater Sage-Grouse (Centrocercus urophasianus) have been reduced by 56% since European settlement. Although loss and fragmentation of sagebrush (Artemisia spp.) habitats have been cited as the primary causes for the decline of the species, degradation of existing habitat also has been considered an important...
Resource Type:: Article
Full Text:: ); however, habitat use during winter has not been thoroughly described throughout the species’ range (Hagen

A meta-analysis of greater sage-grouse Centrocercus urophasianus nesting and brood rearing habitat

Creator:: Hagen, Christian A., Connelly, John W., and Schroeder, Michael A.
Abstract:: The distribution and range of the greater sage-grouse Centrocercus urophasianus have been reduced by 56% since the European settlement of western North America. Although there is an unprecedented effort to conserve the species, there is still considerable debate about the vegetation composition and structure required for nesting and brood-rearing habitat....
Resource Type:: Article
Full Text:: urophasianus nesting and brood-rearing habitats Christian A. Hagen, John W. Connelly & Michael A. Schroeder

Internal helminth parasites of the lesser prairie-chicken Tympanuchus pallidicinctus in southwestern Kansas: incidence, burden, and effects

Creator:: Robel, Robert J., Walker, Thomas L. Jr, Hagen, Christian A., Ridley, Robert K., Kemp, Kenneth E., and Applegate, Roger D.
Abstract:: We conducted a 3-year study of helminth parasites to assess their effect on the lesser prairie-chicken Tympanuchus pallidicinctus. Helminth parasites were found in most of the examined wild prairie chicken carcasses: 95% had eye worm Oxyspirura petrowi, 92% had stomach worm Tetrameres sp., and 59% had caecal worm Subulura sp....
Resource Type:: Article
Full Text:: Kansas, Tympanuchus pallidicinctus Robert J. Robel, Thomas L. Walker, Jr. & Christian A. Hagen, Division

Utilizing hunter harvest effort to survey for wildlife disease: A case study of West Nile virus in greater sage‐grouse

Creator:: Dusek, Robert J., Hagen, Christian A., Franson, J. Christian, Budeau, David A., and Hofmeister, Erik K.
Abstract:: Greater sage-grouse (Centrocercus urophasianus; sage-grouse) are highly susceptible to infection with West Nile virus (WNV), with substantial mortality reported in wild populations and in experimentally infected birds. Although sage-grouse are hunted throughout much of their range, they have also recently been considered for protection under the Endangered Species Act. We...
Resource Type:: Article
Full Text:: for wildlife disease: A case study of West Nile virus in greater sage‐grouse Dusek, R. J., Hagen, C

Lesser prairie-chicken brood habitat in sand sagebrush: invertebrate biomass and vegetation

Creator:: Hagen, Christian A., Salter, G. Curran, Pitman, James C., Robel, Robert J., and Applegate, Roger D.
Abstract:: Invertebrates are an important food source for grouse chicks, especially within the first 2 weeks of life. Invertebrate abundance is highly patchy and dependent upon herbaceous cover and vegetation structure. We examined the relationship between invertebrate biomass (from sweepnet samples) and habitat structure at lesser prairie-chicken (Tympanuchus pallidicinctus) brood-use and...
Resource Type:: Article
Full Text:: in sand sagebrush: invertebrate biomass and vegetation Christian A. Hagen, G. Curran Salter, James

Age-specific variation in apparent survival rates of male lesser-prairie-chickens

Creator:: Hagen, Christian A., Pitman, James C., Sandercock, Brett K., Robel, Robert J., and Applegate, Roger D.
Abstract:: We used mark-recapture methods to estimate age-specific apparent survival rates for male Lesser Prairie-Chickens (Tympanuchus pallidicinctus), a gamebird of conservation concern. A total of 311 male prairie-chickens (135 yearlings, 176 adults) were captured and banded during a 5-year study in southwest Kansas. Time-since-marking models were used to estimate apparent survival...
Resource Type:: Article
Full Text:: -Chickens. Journal of Wild- life Management 34:306–312. ROBEL, R. J., T. L. WALKER, C. A. HAGEN, R. K. RID

ScholarsArchive@OSU

Habitat Selection by Greater Sage-Grouse During Winter in Southeastern Oregon

An Observation of Clostridium perfringens in Greater Sage-Grouse

Greater sage-grouse vital rates after wildfire

A Meta-Analysis of Lesser Prairie-Chicken Nesting and Brood-Rearing Habitats: Implications for Habitat Management

Habitat selection by Greater Sage-Grouse during winter in southeastern Oregon

A meta-analysis of greater sage-grouse Centrocercus urophasianus nesting and brood rearing habitat

Internal helminth parasites of the lesser prairie-chicken Tympanuchus pallidicinctus in southwestern Kansas: incidence, burden, and effects

Utilizing hunter harvest effort to survey for wildlife disease: A case study of West Nile virus in greater sage‐grouse

Lesser prairie-chicken brood habitat in sand sagebrush: invertebrate biomass and vegetation

Age-specific variation in apparent survival rates of male lesser-prairie-chickens

Limit your search

Academic Affiliation

Creator

Date

Decade

Language

License

Peer Reviewed

Resource Type

Rights Statement

Search Constraints

Search Results

Limit your search