{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T16:15:01Z","timestamp":1770826501907,"version":"3.50.1"},"reference-count":24,"publisher":"The Company of Biologists","issue":"14","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2007,7,15]]},"abstract":"<jats:title>SUMMARY<\/jats:title>\n               <jats:p>We have used thermistor\/data logger assemblies to measure temperatures in the brain, carotid artery, jugular vein and abdominal cavity, and subcutaneously, in five pronghorn antelope over a summer in Wyoming. Globe and air temperature varied by up to \u223c50\u00b0C daily during the summer and maximum solar radiation was \u223c900 W m\u20132. Brain temperature(38.9\u00b10.3\u00b0C) was consistently \u223c0.2\u20130.5\u00b0C higher than carotid blood temperature (38.6\u00b10.3\u00b0C), which was the same as abdominal temperature (38.8\u00b10.4\u00b0C). Jugular blood temperature(38.0\u00b10.4\u00b0C) varied, probably because of changes in Respiratory Evaporative Heat Loss (REHL), and was lower than other temperatures. Subcutaneous temperature (38.3\u00b10.6\u00b0C) varied, probably because of peripheral vasoactivity, but on average was similar to other temperatures. Carotid blood temperature had a circadian\/nycthemeral rhythm weakly but significantly (r=0.634) linked to the time of sunrise, of amplitude 0.8\u00b10.1\u00b0C. There were daily variations of up to 2.3\u00b0C in carotid body temperature in individual animals. An average range of carotid blood temperature of 3.1\u00b10.4\u00b0C over the study period was recorded for the group, which was significantly wider than the average variation in brain temperature (2.3\u00b10.6\u00b0C). Minimum carotid temperature(36.4\u00b10.8\u00b0C) was significantly lower than minimum brain temperature(37.7\u00b10.5\u00b0C), but maximum brain and carotid temperatures were similar. Brain temperature was kept relatively constant by a combination of warming at low carotid temperatures and cooling at high carotid temperatures and so varied less than carotid temperature. This regulation of brain temperature may be the origin of the amplitude of the average variation in carotid temperature found, and may confer a survival advantage.<\/jats:p>","DOI":"10.1242\/jeb.005587","type":"journal-article","created":{"date-parts":[[2007,6,29]],"date-time":"2007-06-29T17:44:03Z","timestamp":1183139043000},"page":"2444-2452","source":"Crossref","is-referenced-by-count":23,"title":["Thermoregulation in pronghorn antelope (<i>Antilocapra americana<\/i>Ord) in the summer"],"prefix":"10.1242","volume":"210","author":[{"given":"A.","family":"Lust","sequence":"first","affiliation":[{"name":"Department of Zoology and Physiology, University of Wyoming, Laramie, WY 82071, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Fuller","sequence":"additional","affiliation":[{"name":"Department of Physiology, University of the Witwatersrand, Johannesburg,South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S. K.","family":"Maloney","sequence":"additional","affiliation":[{"name":"Physiology, School of Biomedical and Chemical Sciences, University of Western Australia, Perth, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D.","family":"Mitchell","sequence":"additional","affiliation":[{"name":"Department of Physiology, University of the Witwatersrand, Johannesburg,South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.","family":"Mitchell","sequence":"additional","affiliation":[{"name":"Department of Zoology and Physiology, University of Wyoming, Laramie, WY 82071, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"237","reference":[{"key":"2021042510565660800_REF1","doi-asserted-by":"crossref","unstructured":"Barrett, M. W. and Chalmers, G. A. (1977). Clinicochemical values for adult free-ranging pronghorn. Can. J. Zool.55,1252-1260.","DOI":"10.1139\/z77-164"},{"key":"2021042510565660800_REF2","doi-asserted-by":"crossref","unstructured":"Carlton, C. and McKean, T. (1977). The carotid and orbital retia of the pronghorn, deer, and elk. Anat. Rec.189,91-108.","DOI":"10.1002\/ar.1091890107"},{"key":"2021042510565660800_REF3","unstructured":"Dhindsa, D. S., Metcalfe, J., McKean, T. and Thorne, T.(1974). Comparative studies of the respiratory functions of mammalian blood. XI. Pronghorn antelope (Antilocapra americana). Respir. Physiol.21,297-306."},{"key":"2021042510565660800_REF4","doi-asserted-by":"crossref","unstructured":"Fuller, A., Kamerman, P. R., Maloney, S. K., Matthee, A.,Mitchell, G. and Mitchell, D. (2005). A year in the life of a free-ranging herd of springbok Antidorcas marsupialis.J. Exp. Biol.208,2855-2864.","DOI":"10.1242\/jeb.01714"},{"key":"2021042510565660800_REF5","doi-asserted-by":"crossref","unstructured":"Hassanin, A. and Douzery, E. J. P. (2003). 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