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American Zoologist 1973 13(2):505-512; doi:10.1093/icb/13.2.505
© 1973 by The Society for Integrative and Comparative Biology
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The Effects of Temperature on Respiration in the Amphibia

WALTER G. WHITFORD
Department of Biology, New Mexico Stale University Las Cruces, New Mexico 88003

The effects of temporal me on respiration in amphibians are primarily effects on gas exchange patterns and rate of oxygen consumption (Qo2) in major groups of amphibians. In temperate zone amphibians except plethodontid salamanders, pulmonary oxygen uptake increases with temperature. In plethodontid salamanders cutaneous gas exchange predominates and increases at higher temperatures. Aquatic salamanders are characterized by a lower Qo2 than temperate amphibians at all temperatures. Tropical anurans have a Qo2 equivalent to temperate amphibians at a tempcrarure 10 C greater. The ability of amphibians to supply their tissues with oxygen and the effects of temperature on amphibian respiratory parameters are suggested as probable factors causing these relationships.

Recent evidence for temperature independent reduction in Qo2 in fossorial amphibians and species differences in metabolic scope is discussed.


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