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Time-Varying Greater Sage-Grouse Habitat Selection and Survival Indices in the Bi-State Region of California and Nevada

Dates

Publication Date
Start Date
1995
End Date
2044

Citation

Coates, P.S., Milligan, M.C., Brussee, B.E., O'Neil, S.T., and Chenaille, M.P., 2024, Greater sage-grouse habitat selection, survival, abundance, and space-use in the Bi-State Distinct Population Segment of California and Nevada: U.S. Geological Survey data release, https://doi.org/10.5066/P1AATW9D.

Summary

We used movement and demographic data to simultaneously evaluate habitat selection by sage-grouse across multiple seasons, and measures of survival during key reproductive life stages (nesting and brood-rearing) to identify priority habitat by linking resource selection to demographic performance. We calculated and mapped composite selection and survival indices across the Bi-State Distinct Population Segment (DPS) to differentiate productive habitat that supported high selection and survival compared to areas of maladaptive selection where selection and survival were misaligned.

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Time-varying greater sage-grouse habitat selection and survival indices in the Bi-State region of California and Nevada.xml
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77.34 KB application/fgdc+xml
GrSG_Ebrood_sel_index_BS1995.tif 104.18 MB image/geotiff
GrSG_Ebrood_sel_index_BS2001.tif 104.16 MB image/geotiff
GrSG_Ebrood_sel_index_BS2008.tif 104.18 MB image/geotiff
GrSG_Ebrood_sel_index_BS2021.tif 106.9 MB image/geotiff
GrSG_Ebrood_surv_index_BS1995.tif 64.19 MB image/geotiff
GrSG_Ebrood_surv_index_BS2001.tif 64.2 MB image/geotiff
GrSG_Ebrood_surv_index_BS2008.tif 64.94 MB image/geotiff
GrSG_Ebrood_surv_index_BS2021.tif 66.17 MB image/geotiff
GrSG_Lbrood_sel_index_BS1995.tif 98.64 MB image/geotiff
GrSG_Lbrood_sel_index_BS2001.tif 98.57 MB image/geotiff
GrSG_Lbrood_sel_index_BS2008.tif 98.55 MB image/geotiff
GrSG_Lbrood_sel_index_BS2021.tif 102.85 MB image/geotiff
GrSG_Lbrood_surv_index_BS1995.tif 27.43 MB image/geotiff
GrSG_Lbrood_surv_index_BS2001.tif 27.53 MB image/geotiff
GrSG_Lbrood_surv_index_BS2008.tif 27.6 MB image/geotiff
GrSG_Lbrood_surv_index_BS2021.tif 31.49 MB image/geotiff
GrSG_nest_sel_index_BS1995.tif 97.34 MB image/geotiff
GrSG_nest_sel_index_BS2001.tif 97.37 MB image/geotiff
GrSG_nest_sel_index_BS2008.tif 97.33 MB image/geotiff
GrSG_nest_sel_index_BS2021.tif 98.94 MB image/geotiff
GrSG_nest_surv_index_BS1995.tif 49.22 MB image/geotiff
GrSG_nest_surv_index_BS2001.tif 45.03 MB image/geotiff
GrSG_sel_index_BS2001.tif 91.03 MB image/geotiff
GrSG_sel_index_BS2008.tif 91.12 MB image/geotiff
GrSG_sel_index_BS2021.tif 94.77 MB image/geotiff
GrSG_spring_sel_index_BS1995.tif 100.45 MB image/geotiff
GrSG_spring_sel_index_BS2001.tif 99.32 MB image/geotiff
GrSG_spring_sel_index_BS2008.tif 99.86 MB image/geotiff
GrSG_spring_sel_index_BS2021.tif 102.36 MB image/geotiff
GrSG_suit_index_BS1995.tif 16.45 MB image/geotiff
GrSG_suit_index_BS2001.tif 15.73 MB image/geotiff
GrSG_suit_index_BS2008.tif 16.77 MB image/geotiff
GrSG_suit_index_BS2021.tif 19.68 MB image/geotiff
GrSG_summer_sel_index_BS1995.tif 101.56 MB image/geotiff
GrSG_summer_sel_index_BS2001.tif 100.53 MB image/geotiff
GrSG_summer_sel_index_BS2008.tif 100.42 MB image/geotiff
GrSG_summer_sel_index_BS2021.tif 103.43 MB image/geotiff
GrSG_surv_index_BS1995.tif 15.19 MB image/geotiff
GrSG_surv_index_BS2001.tif 15.88 MB image/geotiff
GrSG_surv_index_BS2008.tif 16.92 MB image/geotiff
GrSG_surv_index_BS2021.tif 19.75 MB image/geotiff
GrSG_winter_sel_index_BS1995.tif 95.21 MB image/geotiff
GrSG_winter_sel_index_BS2001.tif 90.44 MB image/geotiff
GrSG_winter_sel_index_BS2008.tif 90.34 MB image/geotiff
GrSG_winter_sel_index_BS2021.tif 95.05 MB image/geotiff
thumbnail 94.09 MB image/tiff
thumbnail 55.93 MB image/tiff
thumbnail 50.66 MB image/tiff

Purpose

As a sagebrush obligate and indicator species for increasingly threatened sagebrush ecosystems, sage-grouse have become central to land management policy throughout the western United States. The integral role of sage-grouse in guiding land management is exemplified by the conservation and management of populations inhabiting the southwestern extent of the species’ range, along the border of California and Nevada. Sage-grouse in this region are recognized as the Bi-State DPS based on both geographic isolation and genetic distinctiveness. This study was completed to provide timely scientific information regarding Greater Sage-grouse population trends, habitat selection, and the efficacy of previous conservation actions implemented to benefit the Bi-State DPS. Specifically, we conducted these analyses to inform the current (2024) status review and pending listing decision for the DPS being undertaken by the U.S. Fish and Wildlife Service.
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  • USGS Western Ecological Research Center

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