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פותח על ידי קלירמאש פתרונות בע"מ -
Heat balance of running gazelles: strategies for conserving water in the desert
Year:
1974
Source of publication :
American Journal of Physiology
Authors :
בהרב, דן
;
.
Volume :
226
Co-Authors:
Taylor, C.R., Mus. Comp. Zool., Harvard Univ., Cambridge, Mass. 02138, United States
Dmi'el, R., Mus. Comp. Zool., Harvard Univ., Cambridge, Mass. 02138, United States
Shkolnik, A., Mus. Comp. Zool., Harvard Univ., Cambridge, Mass. 02138, United States
Baharav, D.
Borut, A.
Facilitators :
From page:
439
To page:
442
(
Total pages:
4
)
Abstract:
The effect of exercise was studied on the water balance of desert gazelles. The higher metabolism of exercising animals will increase the amount of water available both from oxidation and from free water in food. These higher intakes could result in a net gain of water if the heat generated by exercise was lost mainly by nonevaporative means or a net loss if relatively more of this heat were lost by evaporation. Measurements were made of the amount of heat lost by evaporation, nonevaporative means, and the amount stored as animals rested at various air temperatures and ran at various speeds. The same proportion of the heat production was lost by evaporation at 3 km/hr as at rest, whereas 30-40% more of the heat produced while running at 6-9.5 km/hr was lost by evaporation. At speeds exceeding 15 km/hr, most of the heat produced was stored. However, when the recovery period after a sprint was included (while body temperature returned to normal levels), the same proportion of the heat production was lost by evaporation as at rest. Since gazelles normally either move slowly as they graze or sprint to avoid predators, it seems reasonable to conclude that exercise would not have a major effect on their water balance.
Note:
Related Files :
Animal
Animals
body water
Male
panting
sweating
water
עוד תגיות
תוכן קשור
More details
DOI :
6
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
21918
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:47
You may also be interested in
Scientific Publication
Heat balance of running gazelles: strategies for conserving water in the desert
226
Taylor, C.R., Mus. Comp. Zool., Harvard Univ., Cambridge, Mass. 02138, United States
Dmi'el, R., Mus. Comp. Zool., Harvard Univ., Cambridge, Mass. 02138, United States
Shkolnik, A., Mus. Comp. Zool., Harvard Univ., Cambridge, Mass. 02138, United States
Baharav, D.
Borut, A.
Heat balance of running gazelles: strategies for conserving water in the desert
The effect of exercise was studied on the water balance of desert gazelles. The higher metabolism of exercising animals will increase the amount of water available both from oxidation and from free water in food. These higher intakes could result in a net gain of water if the heat generated by exercise was lost mainly by nonevaporative means or a net loss if relatively more of this heat were lost by evaporation. Measurements were made of the amount of heat lost by evaporation, nonevaporative means, and the amount stored as animals rested at various air temperatures and ran at various speeds. The same proportion of the heat production was lost by evaporation at 3 km/hr as at rest, whereas 30-40% more of the heat produced while running at 6-9.5 km/hr was lost by evaporation. At speeds exceeding 15 km/hr, most of the heat produced was stored. However, when the recovery period after a sprint was included (while body temperature returned to normal levels), the same proportion of the heat production was lost by evaporation as at rest. Since gazelles normally either move slowly as they graze or sprint to avoid predators, it seems reasonable to conclude that exercise would not have a major effect on their water balance.
Scientific Publication
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