Article Figures & Tables
Figures
- Table 1.
Characteristics of the environment and of body temperatures of eight free-ranging springbok
Aug—Oct `Spring' Nov—Jan `Summer' Feb—Apr `Autumn' May—Jul `Winter' Environment Air temperature (°C) 15.8±3.7 20.2±2.2 17.6±2.8 10.0±2.1 Globe temperature (°C) 17.2±4.2 24.0±2.4 20.9±2.5 no data Wind speed (m s-1) 3.6±0.9 3.2±0.6 2.6±0.6 2.4±0.7 Rainfall (mm) 9±15 97±52 88±21 34±19 Time of sunrise (h) 06:11 05:24 06:15 06:55 Time of sunset (h) 18:08 18:58 18:29 17:36 Photoperiod (h) 11:57 13:34 12:14 10:41 Body temperature (°C) Mean 39.43±0.15 39.50±0.12 39.39±0.14 39.22±0.07 Minimum 38.85±0.21 38.97±0.12 38.87±0.11 38.61±0.10 Maximum 40.02±0.20 40.10±0.15 39.97±0.21 39.85±0.18 Amplitude 1.17±0.25 1.13±0.14 1.11±0.18 1.24±0.21 Time of minimum (h) 06:44±0:31 06:12±0:39 06:40±0:52 07:26±0:32 Time of maximum (h) 18:41±1:02 17:53±0:55 18:08±0:40 19:04±0:39 -
For air temperature, globe temperature and wind speed, values are means± S.D. of 24 h averages. Rainfall is mean ± S.D. of monthly averages; time of sunrise, sunset and photoperiod are means of monthly averages. Body temperature indices were determined for each day, and then averaged over about 90 days for each animal; thereafter mean ± S.D. was calculated for the eight animals.
-
- 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.
- 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).
- 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).
- 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).
- Fig. 5.
Original record of 30 min readings of abdominal temperature from one springbok (female 3) over 17 days, illustrating a period of fever.
- 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.
- 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).
- 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.
Article navigation
Related articles
Cited by...
More in this TOC section
Similar articles
Other journals from The Company of Biologists
Predicting the Future: Species Survival in a Changing World
Read our new special issue exploring the significant role of experimental biology in assessing and predicting the susceptibility or resilience of species to future, human-induced environmental change.
Adam Hardy wins the 2020 Journal of Experimental Biology Outstanding Paper Prize
Congratulations to winner Adam Hardy for his work showing that goby fins are as touch sensitive as primate fingertips. Read Adam’s paper and find out more about the 12 papers nominated for the award.
Stark trade-offs and elegant solutions in arthropod visual systems
Many elegant eye specializations that evolved in response to visual challenges continue to be discovered. A new Review by Meece et al. summarises exciting solutions evolved by insects and other arthropods in response to specific visual challenges.
Head bobbing gives pigeons a sense of perspective
Pigeons might look goofy with their head-bobbing walk, but it turns out that the ungainly head manoeuvre allows the birds to judge distance.