Metabolism and thermoregulation in the Cape porcupine, Hystrix africaeaustralis

A. Haim; R. J. Van Aarde; J. D. Skinner

doi:10.1086/physzool.63.4.30158177

Metabolism and thermoregulation in the Cape porcupine, Hystrix africaeaustralis

A. Haim, R. J. Van Aarde, J. D. Skinner

Department of Natural Resources and Environmental Management

Research output: Contribution to journal › Article › peer-review

Abstract

Hyperthermia was observed at T_a >30°C. T_b regulation was accompanied by an increase in overall thermal conductance and respiratory frequency rate. Overall minimal thermal conductance calculated at lower critical point T_a = 24°C is higher than predicted by Bradley and Deavers. Digestible dry-matter intake and gross digestible energy intake are relatively low and correlate with low VO₂ values. Low metabolic rates and high overall thermal conductance appear to be important physiological adaptations for this large, burrowing, nocturnal rodent, which has a wide ecological tolerance. -from Authors

Original language	English
Pages (from-to)	795-802
Number of pages	8
Journal	Physiological Zoology
Volume	63
Issue number	4
DOIs	https://doi.org/10.1086/physzool.63.4.30158177
State	Published - 1990

ASJC Scopus subject areas

Physiology
Animal Science and Zoology
Endocrinology
Physiology (medical)

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10.1086/physzool.63.4.30158177

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abstract = "Hyperthermia was observed at Ta >30°C. Tb regulation was accompanied by an increase in overall thermal conductance and respiratory frequency rate. Overall minimal thermal conductance calculated at lower critical point Ta = 24°C is higher than predicted by Bradley and Deavers. Digestible dry-matter intake and gross digestible energy intake are relatively low and correlate with low VO2 values. Low metabolic rates and high overall thermal conductance appear to be important physiological adaptations for this large, burrowing, nocturnal rodent, which has a wide ecological tolerance. -from Authors",

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Metabolism and thermoregulation in the Cape porcupine, Hystrix africaeaustralis

Abstract

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