Fire regimes of mixed dwarf sagebrush communities
U.S. Department of Agriculture, Forest Service, Missoula Fire Sciences Laboratory. 2012. Information from LANDFIRE on fire regimes of mixed dwarf sagebrush communities.
In: Fire Effects Information System, [Online].
U.S. Department of Agriculture, Forest Service,
Rocky Mountain Research Station, Missoula Fire Sciences Laboratory (Producer).
|A black sagebrush community below the Pequop Mountains, northeastern NV. Creative Commons image by Matt Lavin from Bozeman, Montana.
A complete Fire Regime Synthesis for mixed dwarf sagebrush communities has not been published in the Fire Effects Information System. However, information is available from LANDFIRE succession modeling of Biophysical Settings (BpS).
Table 1 summarizes LANDFIRE data on the BpSs in mixed dwarf sagebrush communities. Figure 1 shows where they occur.
lists the BpSs and the results of LANDFIRE succession modeling for each BpS in mixed dwarf sagebrush communities, and
lists shrub species commonly dominant in dwarf sagebrush communities.
The Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture  provides a review and synthesis
of the historical range of variability of sagebrush communities of California.
|Table 1. Modeled fire intervals and severities in mixed dwarf sagebrush communities .
Fire severity² (% of fires)
Number of Biophysical Settings (BpSs) in each fire regime group
| ¹Average historical fire-return interval
derived from LANDFIRE succession modeling (labeled "MFRI" in LANDFIRE).
²Percentage of fires in 3 fire severity classes, derived from LANDFIRE succession modeling. Replacement-severity fires
cause >75% kill or top-kill of the upper canopy layer; mixed-severity fires cause 26%-75%; low-severity fires
cause <26% [1,2].
³NA (not applicable) refers to BpS models that did not include fire in simulations.
|Figure 1. Land cover distribution of mixed dwarf sagebrush communities based on the LANDFIRE Biophysical Settings (BpS) data layer
. Numbers indicate LANDFIRE
map zones. LANDFIRE did not map every BpS in this group. Click on the map for a larger image and zoom in to see details.
1. Barrett, S.; Havlina, D.; Jones, J.; Hann, W.; Frame, C.; Hamilton, D.; Schon, K.; Demeo, T.; Hutter, L.; Menakis, J. 2010. Interagency fire regime condition class guidebook (FRCC), [Online], (Version 3.0). In: Interagency fire regime condition class website. U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior; The Nature Conservancy (Producers). Available: https://www.frames.gov/files/7313/8388/1679/FRCC_Guidebook_2010_final.pdf [2017, March 1]. .
2. LANDFIRE Rapid Assessment. 2005. Reference condition modeling manual (Version 2.1). Cooperative Agreement 04-CA-11132543-189. Boulder, CO: The Nature Conservancy; U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior. 72 p. On file at: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory, Missoula, MT. 
3. LANDFIRE. 2008. CONUS refresh (LANDFIRE 1.1.0). Biophysical settings layer. In: LANDFIRE data distribution site, [Online]. In: LANDFIRE. U.S. Department of the Interior, Geological Survey (Producer). Available: https://landfire.cr.usgs.gov/viewer/ [2015, October 7]. 
4. USDA. 2016. Sagebrush natural range of variation, [Online]. In: Pacific Region, Ecology program documents, reports and publications, Natural range of variation of Sierra Nevada habitats. Vallejo, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Region (Producer). Available:
https://www.fs.usda.gov/detail/r5/plants-animals/?cid=stelprdb5434436 [2018, September 10]. 36 p. 
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