“…Most notable were changes in the types and abundances of small-bodied mammals whose ecological preferences and physiological tolerances are controlled by temperature, moisture, and associated biotic communities. This especially is the case in arid environments like the Bonneville basin where both paleontological and modern wildlife studies have identified positive correlations between mammal species richness and primary productivity as increases in precipitation generally enhance herbivore biomass and support more taxa (Abramsky and Rosenzweig, 1984;Brown, 1973;Grayson, 1998;Lyman, 2016;Meserve and Glanz, 1978;Rowe and Terry, 2014;Schmitt and Lupo, 2012). Small-mammal assemblages from early-Holocene deposits in Bonneville basin sites contain a variety of species, including taxa adapted to mesic contexts, and suggest that moist conditions persisted until the onset of desertification about 8300 14 C BP (Grayson, 2000a(Grayson, , 2006Schmitt andLupo, 2005, 2016), and the timing and nature of this transformation is largely matched by regional plant records (Louderback and Rhode, 2009;Rhode, 2000Rhode, , 2016Rhode and Louderback, 2015).…”