Thermal physiological ecology of Colias butterflies in flight

  title={Thermal physiological ecology of Colias butterflies in flight},
  author={Joyce S. Tsuji and Joel G Kingsolver and Ward B. Watt},
As a comparison to the many studies of larger flying insects, we carried out an initial study of heat balance and thermal dependence of flight of a small butterfly (Colias) in a wind tunnel and in the wild. Unlike many larger, or facultatively endothermic insects, Colias do not regulate heat loss by altering hemolymph circulation between thorax and abdomen as a function of body temperature. During flight, thermal excess of the abdomen above ambient temperature is weakly but consistently coupled… CONTINUE READING
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