Figure 10: The sampling equipment used in the microhabitat study.  As each lizard was located, the position was marked and time, date, soil temperature (surface, at 2.5 cm, and 10 cm depth), and habitat data (bush, grass/forbs, or sand) recorded.  Air temperature was recorded at the start of each sampling period.  Soil compaction was measured at 8 cm and 15 cm depth using a Soil Compaction Tester (SCT; Dickey-John Corporation).  This instrument measures the pounds/square inch (psi) of pressure exerted as it is pushed downward into the soil.  To avoid injuring buried lizards, we slowly inserted the thermometer and SCT probes into the soil  ~1 to 1.5 cm away from their known location.  Distance and bearing were recorded from the lizard’s previous position each time a lizard was found.