Water Profligacy as an Adaptation to Hot Deserts: Water Loss Rates and Evaporative Cooling in the Sonoran Desert Cicada, Diceroprocta apache (Homoptera: Cicadidae)

  title={Water Profligacy as an Adaptation to Hot Deserts: Water Loss Rates and Evaporative Cooling in the Sonoran Desert Cicada, Diceroprocta apache (Homoptera: Cicadidae)},
  author={Eric C. Toolson},
  journal={Physiological Zoology},
  pages={379 - 385}
  • E. Toolson
  • Published 1 July 1987
  • Biology
  • Physiological Zoology
Thoracic and abdominal temperatures (Tth and Tabd) of Diceroprocta apache were monitored during exposure to an ambient temperature (Ta) of 45.5 C in dry air. Mass-specific heating constants averaged 0.36 ± 0.036 min g⁻¹ below body temperature (Tb) of 39-40 C, but above that temperature range heating constants decreased to 0.012 ± 0.002 min g⁻¹ as a result of evaporative cooling. After 1 h exposure to 45.5 C, Tb's were still ≥2.9 degrees C below Ta. Tb's maintained by cicadas in these… 
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Electron paramagnetic resonance spectroscopy of spin-labelled cuticle of Centruroides sculpturatus (Scorpiones: Buthidae): Correlation with thermal effects on cuticular permeability
EPR spectra of spin-labelled cuticle indicate that the epicuticular lipids are very mobile at ambient temperature, with the translational diffusion coefficient being about 5 × 10−6 cm2 sec at 22 C, and that the low-temperature transition is associated with an increase in mobility of the hydrocarbon chains of the Epicuticular Lipids.
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Cuticular lipids of adults and nymphal exuviae of the desert cicada, Diceroprocta apache (homoptera, Cicadidae)
Hydrocarbons were the most abundant lipid constituent in the cuticles of nymph (exuviae) and adult desert cicadas, Diceroprocta apache, and this difference is correlated with the increased transpiration potential experienced by the adult.
Cuticular Permeability and Epicuticular Lipid Composition in Two Arizona Vejovid Scorpions
The results indicate that cuticular permeabilities can be altered to meet environmental requirements, and that in scorpions predictable changes in epicuticular lipid composition are in part responsible.
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  • Science
  • 1981
An evaporative cooling mechanism in Pholus achemon ( Sphingidae )
  • J . Res . Lepidoptera
  • 1969