Heterothermy of free-living Arabian sand gazelles (Gazella subgutturosa marica) in a desert environment
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چکیده
منابع مشابه
Heterothermy of free-living Arabian sand gazelles (Gazella subgutturosa marica) in a desert environment.
To test whether free-living desert ungulates employ heterothermy to reduce water loss, we measured core body temperature (T(b)) of six free-living Arabian sand gazelles (Gazella subgutturosa marica), a small desert antelope (12-20 kg) that lives in the deserts of Saudi Arabia, where air temperature (T(a)) often exceeds 40 degrees C. We found that the mean daily T(b) varied by 2.6+/-0.8 degrees ...
متن کاملComparison of the effects of racemic ketamine and S-ketamine for anesthesia in Rheem gazelles (Gazella subgutturosa marica) and Subgutturosa gazelles (Gazella subgutturosa subgutturosa).
OBJECTIVE To evaluate effects of racemic ketamine and S-ketamine in gazelles. ANIMALS 21 male gazelles (10 Rheem gazelles [Gazella subgutturosa marica] and 11 Subgutturosa gazelles [Gazella subgutturosa subgutturosa]), 6 to 67 months old and weighing (mean±SD) 19 ± 3 kg. PROCEDURES In a randomized, blinded crossover study, a combination of medetomidine (80 μg/kg) with racemic ketamine (5 mg...
متن کاملComparative analysis of reproductive cycles in female Persian gazelle (Gazella subgutturosa subgutturosa) (Central Asia) and sand gazelle (Gazella subgutturosa marica) (Arabian Peninsula).
This study was conducted at the Bukhara breeding centre (Ouzbekistan, Central Asia) on Persian gazelles (Gazella subgutturosa subgutturosa) and at Thumammah (Saudi Arabia) on sand gazelles (Gazella subgutturosa marica). Plasma prolactin (PRL) and progesterone were determined in groups of females. Because these females were under two different photoperiods (20 degrees N in Saudi Arabia and 40 de...
متن کاملThe energy-maintenance strategy of goitered gazelles Gazella subgutturosa during rut.
In many polygynous ruminant species, males decrease their food intake considerably during the rut. To explain this phenomenon of rut-reduced hypophagia, two main hypotheses, the Foraging-Constraint Hypothesis and Energy-Saving Hypothesis, have been proposed. In our research, we assessed the behavioral strategy of goitered gazelles (Gazella subgutturosa) through the rutting period. According to ...
متن کاملNasal and Oral Calls in Juvenile Goitred Gazelles (Gazella subgutturosa) and their Potential to Encode Sex and Identity
Bovids represent a convenient group for studying the acoustical variation, functions and evolution of vocal communication. Among bovids, a wide spectrum of vocal adaptations and examples of parallel evolution with cervids and humans can be found (Fitch & Reby 2001; McElligott et al. 2006; Frey et al. 2007, 2008a,b). For instance, in the goitred gazelle (Gazella subgutturosa), a strong sexual di...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2006
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.02151