Sagebrush Shrubland

West Slope, North Park, Middle Park and the upper Gunnison Basin

By Threatened Colorado , Two Colorado natives , About us

Last reviewed , Checked against CPW, NPS, CNHP sources , Sources (6)

5,000–10,000 ft

Sagebrush shrublands grow on both slopes, but the largest stands are on the western slope, with extensive stands in North Park, Middle Park and the upper Gunnison Basin. The Gunnison sage-grouse lives only in central and southwestern Colorado and southeastern Utah; at its 2014 listing, USFWS's listing rule put about 84% of the birds in the Gunnison Basin.

Why it matters

Two kinds of sagebrush. Big sagebrush shrublands, with taller sagebrush and a grassy understory, fill broad basins between mountain ranges; shorter montane sagebrush steppe grows on ridges and mountain slopes, the Colorado Natural Heritage Program says.

Sagebrush feeds and shelters many small mammals and birds. CNHP names the Gunnison sage-grouse, greater sage-grouse, Brewer's sparrow and sage sparrow among the Species of Greatest Conservation Need that live in it.

Plants

  • sagebrush

Under pressure

  • Loss and fragmentation. CNHP put sagebrush at 12% below its historic extent in 2011, and says many remaining patches "are now being fragmented by fast-paced and widespread energy development." Habitat Loss & Fragmentation
  • Cheatgrass. At Curecanti National Recreation Area, the Park Service says "Cheatgrass is an especially significant threat to the health of sagebrush habitat." Invasive Plants
  • Fire and grazing. "The condition of much of Colorado's sagebrush shrubland has been degraded due to fire suppression and heavy livestock grazing," according to CNHP. Wildfire & Fire Suppression

Where to see it

Species in this habitat (4)

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Sources (6)

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