Sage-grouse & Sagebrush Ecosystem

Publications

Publications related to USGS sage-grouse and sagebrush steppe science are listed below.

Filter Total Items: 226
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Year Published: 2003

Management implications of the ecology of free-roaming horses in semiarid ecosystems of the western United States

Compared to other ungulates of North America, free-roaming horses (Equus caballus) possess a unique evolutionary history that has given rise to a distinct suite of behavioral, morphological, and physiological traits. Because of their unique combination of cecal digestion, an elongate head with flexible lips, and non-uniform use of...

Beever, Erik

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Year Published: 2003

Effects of soil amendments on germination and emergence of downy brome (Bromus tectorum) and Hilaria jamesii

Downy brome is an introduced Mediterranean annual grass that now dominates millions of hectares of western U.S. rangelands. The presence of this grass has eliminated many native species and accelerated wildfire cycles. The objective of this study was to identify soil additives that allowed germination but inhibited emergence of downy brome, while...

Belnap, J.; Sherrod, S. K.; Miller, M. E.
Effects of soil amendments on germination and emergence of downy brome (Bromus tectorum) and Hilaria jamesii; 2003; Article; Journal; Weed Science; Belnap, J.; Sherrod, S. K.; Miller, M. E.

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Year Published: 2003

Evaluation of the eastern (Centrocercus urophasianus urophasianus) and western (Centrocercus urophasianus phaios) subspecies of Sage-grouse using mitochondrial control-region sequence data

The status of Sage-grouse (Centrocercus urophasianus) is of increasing concern, as populations throughout its range have contracted as a result of habitat loss and degradation. Historically, Sage-grouse were classified into two subspecies: eastern(C. u. urophasianus) and western Sage-grouse (C. u. phaios) based on slight differences in coloration...

Benedict, N.G.; Oyler-McCance, S.J.; Taylor, S.E.; Braun, C.E.
Evaluation of the eastern (Centrocercus urophasianus urophasianus) and western (Centrocercus urophasianus phaios) subspecies of Sage-grouse using mitochondrial control-region sequence data; 2003; Article; Journal; Conservation Genetics; Benedict, N.G.; Oyler-McCance, S.J.; Taylor, S.E.; Braun, C.E.

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Year Published: 2003

Influence of elk grazing on soil properties in Rocky Mountain National Park

We used three 35-year exclosures to examine the effects of high elk populations on a variety of soil properties in three vegetation types: upland sagebrush, aspen, and meadow. Grazing and hoof action by elk significantly increased bulk density (from 0.87 kg/l ungrazed to 0.94 kg/l grazed), with greater effects on soils with fewer rocks. Grazing...

Binkley, Dan; Singer, F.; Kaye, M.; Rochelle, R.
Influence of elk grazing on soil properties in Rocky Mountain National Park; 2003; Article; Journal; Forest Ecology and Management; Binkley, D.; Singer, F.; Kaye, M.; Rochelle, R.

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Year Published: 2001

Linking habitat selection to brood success in greater sage-grouse

Examining links between the fitness of individual organisms and their habitat-based decisions is useful to identify key resources for conservation and management of a species, especially at multiple spatial scales because selection of habitat attributes may vary with spatial scale. Decisions of habitat use by brood-rearing Greater Sage-Grouse (...

Casazza, Michael L.; Coates, Peter S.; Overton, Cory T.

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Year Published: 2001

Occurrence of Greater Sage-Grouse X Sharp-tailed Grouse hybrids in Alberta

Two distinct grouse were regularly observed at two Greater Sage-Grouse (Centrocercus urophasianus) leks in both 1999 and 2000 in southeastern Alberta. Physically and behaviorally, the birds exhibited characteristics of both Greater Sage-Grouse and Sharp-tailed Grouse (Tympanuchus phasianellus), suggesting they were hybrids. DNA analyses of blood...

Aldridge, Cameron L.; Oyler-McCance, S.J.; Brigham, R.M.
Occurrence of Greater Sage-Grouse X Sharp-tailed Grouse hybrids in Alberta; 2001; Article; Journal; Condor; Aldridge, C.L.; Oyler-McCance,S.J.; Brigham, R.M.

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Year Published: 2001

Soil biota in an ungrazed grassland: Response to annual grass (Bromus tectorum) invasion

Bromus tectorum is an exotic annual grass that currently dominates many western U.S. semi-arid ecosystems, and the effects of this grass on ecosystems in general, and soil biota specifically, are unknown. Bromus recently invaded two ungrazed and unburned perennial bunchgrass communities in southeastern Utah. This study compared the soil food-web...

Belnap, Jayne; Phillips, Susan L.

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Year Published: 2000

Middle- and late-Wisconsin paleobotanic and paleoclimatic records from the southern Colorado Plateau, USA

The Colorado Plateau is a distinct physiographic province in western North America, which presently straddles the transition between summer-wet and summer-dry climatic regimes to the south and northwest, respectively. In addition to climate, the diversity of environments and plant communities on the Colorado Plateau has resulted from extreme...

Anderson, R. Scott; Betancourt, J.L.; Mead, J.I.; Hevly, R.H.; Adam, D.P.
Middle- and late-Wisconsin paleobotanic and paleoclimatic records from the southern Colorado Plateau, USA; 2000; Conference Paper; Palaeogeography, Palaeoclimatology, Palaeoecology; Anderson, R. S.; Betancourt, J. L.; Mead, J. I.; Hevly, R. H.; Adam, D. P.

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Year Published: 1999

Predation of artificial ground nests on white-tailed prairie dog colonies

Prairie dog (Cynomys spp.) colonies are unique to prairie and shrub-steppe landscapes. However, widespread eradication, habitat loss, and sylvatic plague (Yersinia pestis) have reduced their numbers by 98% since historical times. Birds associated with prairie dogs also are declining. Potential nest predators, such as coyotes (Canis latrans), swift...

Baker, B.W.; Stanley, T.R.; Sedgwick, J.A.
Predation of artificial ground nests on white-tailed prairie dog colonies; 1999; Article; Journal; Journal of Wildlife Management; Baker, B. W.; Stanley, T. R.; Sedgwick, J. A.

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Year Published: 1998

Radiotelemetry to determine exposure and effects of organophosphorus insecticides on sage grouse

Brewer, Larry; Fagerstone, Kathleen; Blus, L. J.; Connelly, J.W.
Radiotelemetry to determine exposure and effects of organophosphorus insecticides on sage grouse; 1998; Book chapter; Radiotelemetry applications for wildlife toxicology field studies: Proceeding of the Pellston workshop on avian radiotelemetry in support of pesticide field studies, January 5-8, 1993; Blus, L.J.; Connelly, J.W.