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Effects of changes in CO 2 and O 2 concentrations in the inspired gas on respiration in the hibernating hedgehog (Erinaceus europaeus L.)

Hanna Tähti
Annales Zoologici Fennici
Vol. 12, No. 3 (1975), pp. 183-187
Stable URL: http://www.jstor.org/stable/23732269
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Effects of changes in CO
          2
          and O
          2
          concentrations in the inspired gas on respiration in the hibernating hedgehog (Erinaceus europaeus L.)
Preview not available

Abstract

The respiration rhythm of hibernating hedgehogs (Erinaceus europaeus L.) was studied during experiments in which the composition of the inspired gas was varied in respect of CO2 and O2 concentrations. Body temperature was recorded in an ambient temperature of 4.2 (± 0.5 °C). The apnoeic periods became shorter when the CO2 concentration in the inspired gas reached about 1 %, and disappeared completely when it exceeded 5 %. A decrease in O2 concentration affected the respiration rhythm by shortening the apnoeic periods when the O2 concentration was less than 16 %. Respiration became continuous at O2 concentrations of 2 — 3 %.

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