Summary
Steady state oxygen consumption was compared in a rodentNotomys alexis and a marsupialAntechinomys spenceri. The marsupial was found to diverge from predicted eutherian energetic patterns.N. alexis appears to use energy storage as a significant part of the step cycle before becoming bipedal. Aerobic scope and heat storage during running are similar in both species.
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R. E. MacMillen andJ. E. Nelson, Am. J. Physiol.217, 1246 (1969).—T. J. Dawson andA. J. Hulbert, Am. J. Physiol.218, 1233 (1970).
J. E. Kinnear andG. D. Brown, Nature, Lond.215, 1501 (1967).
W. D. L. Ride, Nature, Lond.199, 4967 (1965).—B. J. Marlow, J. Zool., Lond.157, 159 (1969).
C. R. Taylor, K. Schmidt-Nielsen andJ. Raab, Am. J. Physiol.219, 1104 (1970).
T. J. Dawson andC. R. Taylor, Nature, Lond.246, 313 (1973).
T. J. Dawson, Nature, Lond.259, 305 (1976).
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We thankP. Baverstock, C. Watts andH. Aslin for the use of theAntechinomys, Ms.B. Whaite for assistance. Supported by Grants from the Nuffield Foundation, the Ingram Trust and the Flinders University Research Committee to RVB.
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Baudinette, R.V., Nagle, K.A. & Scott, R.A.D. Locomotory energetics in a marsupial (Antechinomys spenceri) and a rodent (Notomys alexis). Experientia 32, 583–585 (1976). https://doi.org/10.1007/BF01990175
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DOI: https://doi.org/10.1007/BF01990175