Mesquite mouse is tied almost entirely to dense mesquite bosque and thornscrub along Arizona’s extreme southern border, one of the narrowest habitat requirements of any rodent in this dataset. Its mid-tier record reflects that narrow footprint rather than any broader scarcity.
Reports rise in March, May–June, and December, an uneven pattern more consistent with scattered trapping-survey timing in a hard-to-access habitat than a clean seasonal cycle.
Full species profile
