Landscape Genetics of Sage Grouse Active

Trust Species and Habitats geneticists, in collaboration with other USGS scientists, Federal, State, and local agencies, and academia, are using genetic data in conjunction with landscape data (for example, habitat, roads, energy development, and elevation) to identify landscape features that function as barriers to movement for both Greater and Gunnison sage-grouse. These studies will help define biologically meaningful populations, provide information on levels of connectivity among populations, and define characteristics of barriers (including geographic distance, topographic features, and anthropogenic land uses) that affect dispersal and genetic exchange. Managers will be able to apply this understanding to focus conservation efforts in areas that will maximize benefits to sage-grouse populations.

The viability of the individual populations and long-term persistence of the species may be impacted by the ability of individual birds to move between populations. We are using genetic samples to infer connectivity across the species range and between leks within the Gunnison Basin to gain insight on which landscape or habitat features are contributing to the fragmentation of the species range. Our connectivity analysis within the basin will provide insight at a manageable scale and ultimately aims to inform current and future management possibilities by delineating corridors of movement and barriers to movement.

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