منابع مشابه
Heterothermy and the water economy of free-living Arabian oryx (Oryx leucoryx).
To test the idea that large, free-living, desert ungulates use heterothermy to reduce water loss, we measured core body temperature (T(b)) of six free-ranging, adult Arabian oryx (Oryx leucoryx) during 2 years in the arid desert of west-central Saudi Arabia. We report the first case of heterothermy in a free-living ruminant in a desert environment: T(b) varied by 4.1+/-1.7 degrees C day(-1) dur...
متن کاملFemale reproductive tract anatomy of the endangered Arabian oryx (Oryx leucoryx) in Jordan.
Female reproductive anatomy of the Arabian oryx is unknown. In this study, reproductive tracts of seven female Arabian oryx (aged 2 to 7 years) were examined to characterize their reproductive anatomy. Observations and measurements were obtained in situ from dead animals during necropsy. Animals were allocated into two groups: cycling (n = 3; follicles or corpora lutea present) and not-cycling ...
متن کاملWorkers Laid-off During the Last Three Recessions: Who Were They, and How Did They Fare?
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متن کاملSelective brain cooling in Arabian oryx (Oryx leucoryx): a physiological mechanism for coping with aridity?
Selective brain cooling is a thermoregulatory effector proposed to conserve body water and, as such, may help artiodactyls cope with aridity. We measured brain and carotid blood temperature, using implanted data loggers, in five Arabian oryx (Oryx leucoryx) in the desert of Saudi Arabia. On average, brain temperature was 0.24±0.05°C lower than carotid blood temperature for four oryx in April. S...
متن کاملSeasonal variation in energy expenditure, water flux and food consumption of Arabian oryx Oryx leucoryx.
We report on the energy expenditure and water flux, measured in the laboratory and in the field, of the Arabian oryx Oryx leucoryx, the largest desert ruminant for which measurements of the field metabolic rate of free-living individuals have been made using doubly labeled water. Prior to extirpation of this species in the wild in 1972, conservationists sequestered a number of individuals for c...
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ژورنال
عنوان ژورنال: Oryx
سال: 1974
ISSN: 0030-6053,1365-3008
DOI: 10.1017/s0030605300011959