Arid
DOI10.1139/cjz-2014-0086
The actively foraging desert lizard Pedioplanis husabensis (Husab Sand Lizard) behaviorally optimizes its energetic economy
Murray, Ian W.1; Fuller, Andrea1; Lease, Hilary M.1; Mitchell, Duncan1; Wolf, Blair O.2; Hetem, Robyn S.1
通讯作者Murray, Ian W.
来源期刊CANADIAN JOURNAL OF ZOOLOGY
ISSN0008-4301
EISSN1480-3283
出版年2014
卷号92期号:10页码:905-913
英文摘要

The Husab Sand Lizard (Pedioplanis husabensis Berger-Dell’Mour and Mayer, 1989) is a recently described lacertid lizard endemic to a small region in the central Namib Desert. Although this species is of conservation concern, very little is known about how this lizard functions in its environment. We used the doubly labeled water method to measure the field energetics in this lizard species and we report on its foraging behavior. Pedioplanis husabensis had summer field metabolic rates (330 +/- 140 J.d(-1)) that were similar to those of other similarly sized sit-and-wait foraging lizards (360 J.d(-1)), but only 43% that of an active foraging lizard of the same mass (770 J.d(-1)), despite using a movement-intensive, active foraging strategy. Additionally, the mean water influx rate (0.06 +/- 0.03 mL.d(-1)) was 67% that of a desert reptile of the same size (0.09 mL.d(-1)). Active body temperatures were significantly lower in summer (34.3 +/- 1.7 degrees C) than they were in autumn (36.8 +/- 1.6 degrees C), and daily activity of lizards increased from 2.6 +/- 0.9 h.d(-1) in summer to 4.3 +/- 1.9 h.d(-1) in autumn. Relative to other species of actively foraging desert lizards, P. husabensis has lower energy requirements.


英文关键词Pedioplanis husabensis Husab Sand Lizard Namib Desert field metabolic rate doubly labeled water
类型Article
语种英语
国家South Africa ; USA
收录类别SCI-E
WOS记录号WOS:000345031300009
WOS关键词FIELD METABOLIC-RATE ; PHYSIOLOGICAL ECOLOGY ; CNEMIDOPHORUS-TIGRIS ; POTENTIAL ERRORS ; LACERTID LIZARDS ; WATER FLUX ; RATES ; CLIMATE ; MODES ; CONSEQUENCES
WOS类目Zoology
WOS研究方向Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/181269
作者单位1.Univ Witwatersrand, Brain Funct Res Grp, Sch Physiol, Fac Hlth Sci, ZA-2193 Parktown, South Africa;
2.Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA
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GB/T 7714
Murray, Ian W.,Fuller, Andrea,Lease, Hilary M.,et al. The actively foraging desert lizard Pedioplanis husabensis (Husab Sand Lizard) behaviorally optimizes its energetic economy[J],2014,92(10):905-913.
APA Murray, Ian W.,Fuller, Andrea,Lease, Hilary M.,Mitchell, Duncan,Wolf, Blair O.,&Hetem, Robyn S..(2014).The actively foraging desert lizard Pedioplanis husabensis (Husab Sand Lizard) behaviorally optimizes its energetic economy.CANADIAN JOURNAL OF ZOOLOGY,92(10),905-913.
MLA Murray, Ian W.,et al."The actively foraging desert lizard Pedioplanis husabensis (Husab Sand Lizard) behaviorally optimizes its energetic economy".CANADIAN JOURNAL OF ZOOLOGY 92.10(2014):905-913.
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