Thermal ecology and thermal landscape of Sauromalus varius

Dataset shows data on the thermal ecology and thermal landscape of the
piebald chuckwalla, Sauromalus varius, an herbivorous reptile living on a
hot desert island in one of the warmest areas in the world. Data was
collected during the warmest period of the year (July 2023). We recorded
field body temperature (Tbfield), voluntary thermal limits (the voluntary
maximum body temperature), the onset of thermal stress responses (e.g.,
panting), and critical maximum temperature (CTmax) at which righting
response was lost. We also determined thermal landscape available to the
iguanas on the island. Temperature dataloggers registered temperature
every 30 min during six days in the hottest month of the year. Temperature
was determined for air temperature (at 150 cm above the substrate) and in
the sun (30 cm above the substrate), and for microhabitats available to
the iguana: substrate temperature in the sun and shade, under plants,
under rocks, and in caves.