Fire regimes of mountain-mahogany communities
U.S. Department of Agriculture, Forest Service, Missoula Fire Sciences Laboratory. 2026. Fire regimes of mountain-mahogany communities. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Missoula Fire Sciences Laboratory (Producer). Available: https://research.fs.usda.gov/feis/fire-regimes/mountain-mahogany
A complete Fire Regime Synthesis for mountain-mahogany communities has not yet been published in the Fire Effects Information System. However, LANDFIRE succession modeling of mountain-mahogany Biophysical Settings (BpS) provides estimates of fire regime characteristics (see LANDFIRE Biophysical Settings section). Figure 1 shows where these BpSs occur.
Figure 1—Land cover distribution of mountain-mahogany Biophysical Settings (BpS).
| Biophysical Setting | Mean Fire Interval (years) | Fire Severity Percent (%) | ||||||
|---|---|---|---|---|---|---|---|---|
| Code | Fire Regime Group | Low | Mixed | Replacement | All | Low | Mixed | Replacement |
| Series 10860 - Rocky Mountain Lower Montane-Foothill Shrubland | ||||||||
| 10860_28 | III-A | 210 | 73 | 54 | 0 | 26 | 74 | |
| 10860_27_31_33 | IV-A | 46 | 46 | 0 | 0 | 100 | ||
| 10860_25 | III-A | 203 | 72 | 53 | 0 | 26 | 74 | |
| 10860_26 | II-B | 14 | 14 | 0 | 0 | 100 | ||
| 10860_29 | IV-B | 106 | 106 | 0 | 0 | 100 | ||
| Series 10862 - Rocky Mountain Lower Montane-Foothill Shrubland - True Mountain Mahogany | ||||||||
| 10862_22 | IV-B | 106 | 106 | 0 | 0 | 100 | ||
| Series 10620 - Inter-Mountain Basins Curl-leaf Mountain Mahogany Woodland and Shrubland | ||||||||
| 10620_22_28 | III-A | 78 | 229 | 58 | 0 | 75 | 25 | |
| 10620_16_23 | III-A | 228 | 137 | 246 | 64 | 28 | 46 | 26 |
| 10620_7_9 | III-A | 244 | 213 | 243 | 77 | 32 | 36 | 32 |
| 10620_10_19_21_29_31 | III-A | 232 | 151 | 286 | 69 | 30 | 46 | 24 |
| 10620_6_12_17_18 | III-A | 238 | 149 | 288 | 69 | 29 | 47 | 24 |
| 10620_13 | III-A | 232 | 149 | 287 | 69 | 30 | 46 | 24 |
| Summary | ||||||||
| Minimum | 228 | 78 | 14 | 14 | 0 | 0 | 24 | |
| Maximum | 244 | 213 | 288 | 106 | 32 | 75 | 100 | |
| Mean | 235 | 161 | 166 | 65 | 12 | 29 | 59 | |
| Median | 232 | 150 | 168 | 67 | 0 | 31 | 53 | |
| Percentage 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%. | ||||||||
| LANDFIRE. 2020. Biophysical settings models and descriptions, [Online]. Washington, DC: U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior; U.S. Geological Survey; Arlington, VA: The Nature Conservancy, (Producers). Available: https://www.landfirereview.org/search.php [96496] | ||||||||
1. LANDFIRE. 2020. Biophysical settings layer, CONUS (LANDFIRE 2.2.0). In: LANDFIRE download data mosaic products, [Online]. U.S. Department of the Interior, Geological Survey; U.S. Department of Agriculture (Producer). Available: https://www.landfire.gov/version_download.php [2023, June 20]. [98050]
2. LANDFIRE. 2020. Biophysical settings models and descriptions, [Online]. Washington, DC: U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior; U.S. Geological Survey; Arlington, VA: The Nature Conservancy, (Producers). Available: http://www.landfirereview.org/search.php [2022, February 2]. [96496]