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WY SG Seasonal Models (Vector Data, ESRI File Geodatabase)

Dates

Start Date
1994
End Date
2010

Summary

Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource Selection Function [...]

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Attached Files

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WY_SG_Seasonal_Deliverables.gdb.zip 1,012.8 KB

Purpose

These data have been created in support of research and analysis of Wyoming Greater Sage-grouse (Centrocercus urophasianus). These data can be used to examine the relative probabilities of Sage-grouse habitat selection within Wyoming. Data users should be aware that models perform best within the study site extents where data were used for model development. The study site extents define the spatial extent of Sage-grouse use locations and available resources for a particular season, which were defined based on seasonal movements (Fedy and others 2012). Please refer to the manuscript (Fedy and others 2014) for extensive assessment and discussion of the application and performance of the RSF models in novel areas outside of the study site extents. The study site extents for each season are provided as different dataset products and therefore data users will require the study site extents, habitat models, and the regional boundary dataset to correctly use the models we developed. We are providing data for relative probabilities of Sage-grouse habitat selection (continuous surfaces), binned categories of relative use (categorical surfaces), and binary surfaces (habitat versus non-habitat) for each season (nesting, summer/late brood-rearing, and winter). These products are modeled at the statewide scale and for three different regional scales (southwest, central, and northeast). Each regional model is applied to the statewide extent, which will permit data users to investigate the use of one regional model applied to a different region. However, we caution data users about applying one regional model to assess habitat importance within a different region (Fedy and others 2014). The data user will select the season of interest and then evaluate the statewide and regional models before determining which model is best suited for their assessment. Auxiliary data should likely be used while selecting the appropriate regional or statewide model (Fedy and others 2014). For example, data users might use local Sage-grouse telemetry data (data not used to develop these models), lek data, or expert knowledge for model selection.

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