Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Avian Community Response in GTNP


May 2013 - December 2015


Information provided by this study will serve multiple purposes. First, it will contribute to a better understanding of the effects of restoration treatments on sagebrush steppe birds and their habitats. Currently, there is little information available in the primary literature on bird responses to restoration in sagebrush steppe ecosystems. In fact, a recent review of published articles by Ortega-Alvarez and Lindig-Cisneros (2012) of the effects of ecological restoration on birds and the role birds play in evaluating restoration outcomes yielded no studies focused on sagebrush steppe habitats. Although there are studies reporting restoration treatments of sagebrush steppe with the aim of creating or improving Greater Sage-grouse (Centrocercus urophasianus) habitat, the actual effects of restoration on sage grouse populations seemingly have not been evaluated (e.g., Wisdon et al. 2002; Baker et al. 2009). Second, these data could be used in building state-and-transition (STM) models as a way of determining when ecological functions (like the provision of wildlife habitat) are intact. Holmes and Miller (2010) recently used an STM approach to model effects of habitat dynamics on grasshopper sparrow (Ammodramus savannarum) abundance in Oregon rangelands, and there are efforts underway to do the same for populations of Greater Sage-grouse (Evers 2010). Information from our study will be made available to other researchers and land managers through a manuscript published in a peer-reviewed scientific journal. Additionally, our data will be shared with NPS personnel to be used in natural resource management decisions.


Current Staff

Federal Staff: 95

Masters Students: 238

Phd Students: 144

Post Docs: 54

University Staff: 239

5 Year Summary

Students graduated: 673

Scientific Publications: 1905

Presentations: 4235



  • Anna ChalfounCo-Principal Investigator
  • Tracey JohnsonCo-Principal Investigator

Funding Agencies

  • University of Wyoming - NPS


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey