The Lower Gila River Conservation Opportunity Area (COA) (Figure 36) encompasses 44,248 ha (109,339 ac), split between the Arizona-New Mexico Mountains and Chihuahuan Desert ecoregions. The largest portion of the COA is privately-owned (45%), with substantial amounts managed by BLM (23%) and USFS (22%). It contains three Important Bird Areas (Gila Bird Area, Gila-Cliff Area, Lower Gila Box) and one TNC refuge (Gila River Complex), but only 9% of its lands are protected. Landcover includes nine native vegetation habitats plus open water and agricultural lands. Almost half of the COA is covered by Madrean Lowland Evergreen Woodland (48%) with another third covered by Chihuahuan Desert Scrub (29%). Perennial aquatic habitats include 261 km (162 mi) of warm water streams and 25 ha (62 ac) of warm water reservoirs.


Habitat Name Habitat Size in Hectares
Chihuahuan Desert Scrub 12757.86
Chihuahuan Semi-Desert Grassland 2930.85
Cliff, Scree & Rock Vegetation 53.01
Herbaceous Agricultural Vegetation 1278.54
Madrean Lowland Evergreen Woodland 21242.61
Madrean Montane Forest & Woodland 280.89
Open Water 21.06
Rocky Mountain Lower Montane Forest 64.8
Southwest Riparian Forest 1078.56
Warm Interior Chaparral 4374.63
Warm-Desert Arroyo Riparian Scrub 62.01

Species (SGCN)

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