Abstract
In terrestrial ectotherms, body temperatures have a pronounced effect on their physiological processes and life history traits. This study was conducted to determine what the thermal preferences of adult female scorpions, Paruroctonus marksi, are and whether their body temperature influences their escape behavior. There was a significant difference between the mean diurnal (26.11 ± 0.317 °C) and nocturnal (28.55 ± 0.439 °C) body temperatures. Furthermore, each P. marksi sprint speed was tested at 18, 22, 28, 37 °C respectively. Ideal sprint speed fell within the range of chosen body temperatures. The highest sprint speed (8.42 ± 0.483 cm/s) recorded in this study was at 28 °C; however, their sprint speed was slower at the higher temperature range (37 °C). We can conclude that these scorpions select temperatures that maximize their survival chances when it comes to sprinting abilities.
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