232 Mesquite savanna Mesquite (Prosopis spp.) occurs in both shrub and tree form throughout the Southwest. In washes and riparian areas, it can grow 40 feet high. In dry areas, it usually grows in shrub form. Over the past century, mesquite density has greatly increased across range lands due to fire exclusion and seed dispersal by cattle, and is now a significant management concern for ranchers and farmers. This fuelbed represents a dense, dry-site mesquite shrubland developed through long-term grazing and fire exclusion. 260,310,320 5 2 95,149,270,271 2,3 1 3

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