Research

Counting sage-grouse at leks

Research in the Bi-State has set the stage for some of the research that has occurred rangewide for the greater sage-grouse. 

Much of the research has been led by the United States Geological Survey (USGS) at the Western Ecological Research Center. 

A summary of research through 2012 can be found in the BSAP on page 9. Below is a list of relevant research completed in the Bi-State and links to the papers where available.

Habitat Use & Conifer Removal

Pinyon and Juniper Encroachment into Sagebrush Ecosystems Impacts Distribution and Survival of Greater Sage-Grouse, 2017, by Peter S. Coates, Brian G. Prochazka, Mark A. Ricca, K. Ben Gustafson, Pilar Ziegler, Michael L. Casazza

​Encounters with Pinyon-Juniper Influence Riskier Movements in Greater Sage-Grouse Across the Great Basin, 2017, by Brian G. Prochazka, Peter S. Coates, Mark A. Ricca, Michael L. Casazza, K. Benjamin Gustafson, Josh M. Hull

Greater Sage-Grouse Nesting and Brood-Rearing Microhabitat in Nevada and California—Spatial Variation in Selection and Survival Patterns. Coates, P.S., Brussee, B.E., Ricca, M.A., Dudko, J.E., Prochazka, B.G., Espinosa, S.P., Casazza, M.L., and Delehanty, D.J. 2017.

Using Object-Based Image Analysis to Conduct High-Resolution Conifer Extraction at Regional Spatial Scales. Coates, P.S., Gustafson, K.B., Roth, C.L., Chenaille, M.P., Ricca, M.A., Mauch, K., Sanchez-Chopitea, E., Kroger, T.J., Perry, W.M., and Casazza, M.L. 2017.

Population 

A hierarchical integrated population model for greater sage-grouse (Centrocercus urophasianus) in the Bi-State Distinct Population Segment, California and Nevada, Open-File Report 2014-1165,  Prepared in cooperation with the Bureau of Land Management, Nevada Department of Wildlife, and U.S. Fish and Wildlife Service by: Peter S. Coates, Brian J. Halstead, Erik J. Blomberg, Brianne Brussee, Kristy B. Howe, Lief Wiechman, Joel Tebbenkamp, Kerry P. Reese, Scott C. Gardner, and Michael L. Casazza. 2017.

Hierarchical Population Monitoring of Greater Sage-Grouse in Nevada and California: Identifying Populations in Peril and the Spatial Extent of the Threat.

Coates, P.S., Prochazka, B.G., Ricca, M.A., Wann, G.T., Aldridge, C.L., Hanser, S.E., Doherty, K.E., O'Donnell, M.S., Edmunds, D.R., and Espinosa, S.P

Genetics

Genomic single-nucleotide polymorphisms confirm that Gunnison and Greater sage-grouse are genetically well differentiated and that the Bi-State population is distinct, 2015, The Condor, by:
Sara J. Oyler-McCance, Robert S. Cornman, Kenneth L. Jones, and Jennifer Fike

Conservation Strategies

Range-wide connectivity of priority areas for Greater Sage-Grouse: Implications for long-term conservation from graph theory, the Condor, 2017, by: Michele R. Crist, Steven T. Knick, and Steven E. Hanser

Bi-State Partnership Success

2016 Duvall, AL, AL Metcalf, PS Coates. 2016. Conserving the Greater Sage-Grouse: A Social-Ecological Systems Case Study from the California-Nevada Region. Rangeland Ecology & Management.