The purpose of the plan is to make sure public funds are spent wisely, natural resources are conserved, and the health, safety and welfare of the residents are enhanced. It is a living document that can be amended anytime through proper procedures. It must be reviewed and updated every ten years. It is simply a guide to future growth and land use.

The purpose of the plan is to make sure public funds are spent wisely, natural resources are conserved, and the health, safety and welfare of the residents are enhanced. It is a living document that can be amended anytime through proper procedures. It must be reviewed and updated at least every ten years. It is simply a guide to future growth and land use.

Concern has been expressed that mesquite bosques are disappearing or diminishing in quality, and that the survival of the mesquite mouse is consequently threatened. This study, funded by a grant from the Arizona Heritage Fund to the Pima County Regional Flood Control District, investigated the current distribution of the mesquite mouse by reviewing historical records from museum specimens, examining existing potential habitat at historic locations of the species and elsewhere in the county, and conducting a live-trapping study at 19 sites representing a range of ecological communities with mesquite as a major component.