Behavioral Temperature Regulation in the Pill Bug, Armadillidium Vulg?re (isopoda) By
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چکیده
Autonomie temperature regulation in crustaceans has been the subject of various studies. These included measurements of body temperature (e.g., Edney, 1951a, 1953; Warburg, 1965), lethal limits of ambient temperature (e.g., Edney, 1964; Orr, 1955), water loss by evaporation (e.g., Edney, 1951b; Warburg, 1965), and respiratory metabolism (e.g., Demeusy, 1957; Edwards & Irving, 1943). Behavioral thermor?gulation, on the other hand, has attracted the endeavors of few zoologists. Aquatic crustaceans have received some atten tion (e.g., Casterlin & Reynolds, 1977; Crawshaw, 1974; Fast & Momot, 1973) but, with the exception perhaps of only two studies on thermotaxis (Barlow & Kuenen, 1957; Warburg, 1964), terrestrial crustaceans have been left aside. The present series of experiments on a terrestrial isopod has the purpose of filling this blank. Studies were made of thermal pre fe renda, acclimation, costs of thermor?gulation, huddling, circadian rhythm, burrowing, dormancy, and
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