Inventoried Roadless Areas where this ecosystem is present, identified from LANDFIRE 2024 Existing Vegetation Type spatial analysis. Coverage indicates the proportion of each area occupied by this ecosystem type.
| Area | Forest | Coverage | Hectares |
|---|---|---|---|
| Boulder | Tonto National Forest | 5.2% | 844.56 |
| Black Cross | Tonto National Forest | 2.6% | 61.83 |
| Whetstone | Coronado National Forest | 2.2% | 182.79 |
| Tumacacori | Coronado National Forest | 1.6% | 289.26 |
| Mazatzal | Tonto National Forest | 1.2% | 81.36 |
| Lime Creek | Tonto National Forest | 1.0% | 179.55 |
| Hell Hole | Apache-Sitgreaves National Forests | 1.0% | 63.18 |
| Horse Mesa | Tonto National Forest | 1.0% | 36 |
| Goldfield | Tonto National Forest | 0.9% | 53.64 |
| Lower San Francisco | Apache-Sitgreaves National Forests | 0.9% | 206.01 |
| Sunset | Apache-Sitgreaves National Forests | 0.6% | 65.79 |
| Butterfly Roadless Area | Coronado National Forest | 0.4% | 71.28 |
| Chiricahua | Coronado National Forest | 0.3% | 95.85 |
Ecosystem classification: Ecosystems are classified using the LANDFIRE 2024 Existing Vegetation Type (EVT) layer, mapped to NatureServe Terrestrial Ecological Systems via a curated crosswalk. Each EVT is linked to the USNVC (U.S. National Vegetation Classification) hierarchy through pixel-level co-occurrence analysis of LANDFIRE EVT and NatureServe IVC Group rasters across all roadless areas.
Vegetation coverage: Coverage percentages and hectares are derived from zonal statistics of the LANDFIRE 2024 EVT raster intersected with roadless area boundaries.
Ecosystem narratives and community species: Sourced from the NatureServe Explorer API, representing professional ecological assessments of vegetation composition, environmental setting, dynamics, threats, and characteristic species assemblages.
IVC hierarchy: The International Vegetation Classification hierarchy is sourced from the USNVC v3.0 Catalog, providing the full classification from Biome through Association levels.
Component associations: Plant community associations listed as components of each NatureServe Ecological System. Association data from the NatureServe Explorer API.
State ranks: Conservation status ranks assigned by NatureServe member programs in each state where the ecosystem occurs.