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First published online July 25, 2005
Journal of Experimental Biology 208, 2855-2864 (2005)
Published by The Company of Biologists 2005
doi: 10.1242/jeb.01714

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A year in the thermal life of a free-ranging herd of springbok Antidorcas marsupialis

Andrea Fuller^1,*, Peter R. Kamerman¹, Shane K. Maloney^1,2, André Matthee³, Graham Mitchell^1,4 and Duncan Mitchell¹

¹ School of Physiology, University of the Witwatersrand Medical School, 7 York Road, Parktown 2193, South Africa
² Physiology, School of Biomedical and Chemical Science, University of Western Australia, Crawley, Perth, 6009, Australia
³ National Zoological Gardens Lichtenburg Game Breeding Centre, PO Box 716, Lichtenburg 2740, South Africa
⁴ Department of Zoology and Physiology, University of Wyoming, Laramie, WY 82071, USA

View larger version (17K): [in a new window]   Fig. 1. Original record of 30 min readings of abdominal temperature from one springbok (female 1) over 13 months (August 1999 to September 2000). Note the apparent decrease in minimum body temperature in July–September (southern hemisphere late winter), the episode of fever in April, and the hyperthermia exceeding 43°C associated with ultimate capture of the animal.

View larger version (24K): [in a new window]   Fig. 2. 24 h mean of body temperature plotted against 24 h mean of air temperature (A), and 24 h amplitude of body temperature plotted against 24 h range of air temperature (B), for one springbok (female 1, 353 days data).

View larger version (27K): [in a new window]   Fig. 3. Mean (± S.D.) air temperature and body temperature (N=8 animals) as a function of time of day for 1 month with high air temperatures (November) and 1 month with low air temperatures (June).

View larger version (11K): [in a new window]   Fig. 4. Mean monthly body temperature for the eight springbok plotted against mean monthly photoperiod, with linear regression line (r=0.9, P<0.0001).

View larger version (19K): [in a new window]   Fig. 5. Original record of 30 min readings of abdominal temperature from one springbok (female 3) over 17 days, illustrating a period of fever.

View larger version (16K): [in a new window]   Fig. 6. Original record of 30 min readings of abdominal temperature from one springbok (male 2) on 2 days, illustrating hyperthermias likely to have been associated with exercise.

View larger version (16K): [in a new window]   Fig. 7. Original record of 30 min readings of abdominal temperatures from three female springbok over 10 h, illustrating hyperthermia reaching 43°C during an unsuccessful capture attempt (chased by vehicle).

View larger version (21K): [in a new window]   Fig. 8. Original record of 30 min readings of abdominal temperatures of five female springbok over 24 h, illustrating the hyperthermia likely to reflect labour and birth, in one animal (bold line) between 20:00 h and 24:00 h.