Novel case of a tenebrionid beetle using discontinuous gas exchange cycle when dehydrated

  title={Novel case of a tenebrionid beetle using discontinuous gas exchange cycle when dehydrated},
  author={F. Duncan and B. Krasnov and M. K. McMaster},
  journal={Physiological Entomology},
  • F. Duncan, B. Krasnov, M. K. McMaster
  • Published 2002
  • Biology
  • Physiological Entomology
  • Abstract In this study we show a link between the respiratory method and state of hydration in an arid dwelling tenebrionid beetle (Pimelia grandis). Dehydrated beetles use discontinuous gas exchange cycles with a flutter period consisting of several discrete bursts of CO2 release, whereas beetles given access to food and water showed a form of continuous CO2 release. These data give support to the respiratory water conservation hypothesis for the discontinuous gas exchange cycle. 
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