Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1086/515887 |
Correlates of average daily metabolism of field-active zebra-tailed lizards (Callisaurus draconoides) | |
Karasov, WH; Anderson, RA | |
通讯作者 | Karasov, WH |
来源期刊 | PHYSIOLOGICAL ZOOLOGY
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ISSN | 0031-935X |
出版年 | 1998 |
卷号 | 71期号:1页码:93-105 |
英文摘要 | The extent of variation in reptile field metabolism, and its causal bases, are poorly understood. We studied the energetics of the insectivorous lizard Callisaurus draconoides at a site in the California Desert (Desert Center) and at a site at the southern tip of the Baja Peninsula (Cabo San Lucas; hereafter, Cabo). Reproducing Callisaurus were smaller at Cabo than at Desert Center. The allometry of metabolism with body mass can account for most differences in whole-animal metabolism. There was no significant effect of sex or source population on mass-adjusted metabolic rate in the laboratory (resting metabolism, measured by closed-system respirometry) or in the field (field metabolism, measured with doubly labeled water). The mass-adjusted resting metabolism and field metabolism of gravid females and the field metabolism of juvenile lizards were not significantly different from those of nonreproductive adults. Temperature had a significant effect on resting metabolism (Q(10) = 2.7); fed lizards had resting metabolism that was 22% higher than that of fasted lizards; field metabolism was positively correlated with growth rate in juveniles; and field metabolism of adults increased from spring to late summer at Desert Center by 25%, probably because of longer activity period length and slightly higher activity period body temperature. We calculated from water influx and field metabolism that juveniles allocated 18% of their metabolizable energy intake to growth and that most energy deposited into eggs was transferred from energy stores rather than ingested in the weeks prior to laying. |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000071808900011 |
WOS关键词 | LABELED WATER METHOD ; OXYGEN-CONSUMPTION ; FOOD-ACQUISITION ; POTENTIAL ERRORS ; CO2 PRODUCTION ; ENERGETICS ; POPULATIONS ; TEMPERATURE ; EXPENDITURE ; AUSTRALIA |
WOS类目 | Physiology ; Zoology |
WOS研究方向 | Physiology ; Zoology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/136516 |
作者单位 | (1)Univ Wisconsin, Dept Wildlife Ecol, Madison, WI 53706 USA;(2)Western Washington Univ, Dept Biol, Bellingham, WA 98225 USA |
推荐引用方式 GB/T 7714 | Karasov, WH,Anderson, RA. Correlates of average daily metabolism of field-active zebra-tailed lizards (Callisaurus draconoides)[J],1998,71(1):93-105. |
APA | Karasov, WH,&Anderson, RA.(1998).Correlates of average daily metabolism of field-active zebra-tailed lizards (Callisaurus draconoides).PHYSIOLOGICAL ZOOLOGY,71(1),93-105. |
MLA | Karasov, WH,et al."Correlates of average daily metabolism of field-active zebra-tailed lizards (Callisaurus draconoides)".PHYSIOLOGICAL ZOOLOGY 71.1(1998):93-105. |
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