The thermoregulatory limits of an Australian Passerine,the Silvereye (Zosterops lateralis) |
| |
| Affiliation: | 1. Department of Process Engineering, Stellenbosch University, Private BagX1, MATIELAND, 7602, South Africa;7. Department of Process Engineering, Stellenbosch University, Private BagX1, MATIELAND, 7602, South Africa;1. Key Laboratory for Genetic Breeding of Aquatic Animals and Aquaculture Biology, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Shanshui East Road No. 9, Wuxi, Jiangsu 214081, PR China;2. Wuxi Fisheries College, Nanjing Agricultural University, Shanshui East Road No. 9, Wuxi, Jiangsu 214081, PR China;3. Nanjing Alpha Feed Biological Technology Co., Ltd., Binhuai Avenue No.9, Nanjing, Jiangsu 211200, PR China;1. Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada;2. Freshwater Institute, Fisheries & Oceans, Winnipeg, MB, Canada;3. Deparment of Earth & Atmospheric Science, University of Alberta, Edmonton, AB, Canada |
| |
| Abstract: | (1) The thermal capabilities of Australian silvereyes (Zosterops lateralis, 11 g) were investigated both at low and high ambient temperatures (Ta) during the photophase and scotophase. (2). The peak metabolic rate (PMR) induced by helium–oxygen (79:21 %, He–O2) exposure during the photophase was 15.64±1.55 mL O2 g−1 h−1 at an effective lower survival limit Ta (Tpmr) of −39.7±6.1°C. (3). Above the thermoneutral zone (TNZ), metabolic rate, body temperature (Tb), and thermal conductance increased steeply, but they were able to withstand a Ta of 39°C. (4). Our study shows that silvereyes are able to tolerate an impressive range of Ta from about −42°C to at least +39°C and are able to produce enough heat to maintain a thermal difference between Tb and Ta of up to 80°C. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
