Discontinuous ventilation in the rhinoceros beetle Oryctes nasicornis. Direct and indirect calorimetry

I Lamprecht, R S Seymour, C R White, P G D Matthews, Lars Wadsö

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7 Citations (SciVal)

Abstract

Discontinuous gas exchange cycles (DGCs) are frequently observed with insects, i.e. oxygen take up and carbon dioxide release occur
interrupted by periods of a few minutes up to many hours.
The paper presents direct and indirect calorimetric experiments on DGCs of the scarabid rhinoceros beetle Oryctes nasicornis.
A direct/indirect calorimetric experiment is presented. Total and specific heat production rates amount to 0.56mWand 0.42mWg–1
in the first period without DGCs and to 0.43 mW (0.32 mW g–1
) in the second phase, resp. The mean DGC amplitude is 0.184 mW
and thus between 33 and 66% of the total turnover.
Original languageEnglish
Pages (from-to)743-747
JournalJournal of Thermal Analysis and Calorimetry
Volume95
DOIs
Publication statusPublished - 2009

Subject classification (UKÄ)

  • Materials Engineering

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