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.

This report examines community concerns and challenges related to extreme heat during a typical year and during the COVID-19 pandemic. It considers which policies have helped address these concerns and challenges and identifies potential opportunities to further support community members with the challenge of extreme heat. The report focuses specifically on American Indian and Latino/a community members, given their disproportionate risk of experiencing detrimental impacts of extreme heat and overlapping risk factors for negative outcomes of COVID-19.