BEHAVIORAL THERMOREGULATION INCREASES GROWTH-RATE IN A NOCTURNAL LIZARD

被引:100
作者
AUTUMN, K [1 ]
DENARDO, DF [1 ]
机构
[1] UNIV CALIF BERKELEY,DEPT INTEGRAT BIOL,BERKELEY,CA 94720
关键词
D O I
10.2307/1564552
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
We tested the hypothesis that thermoregulation increases growth rate in nocturnal Lizards. Leopard geckos (Eublepharis macularius) maintained from hatching at 25 C grew at a rate of 0.11 g/day, while geckos allowed to thermoregulate at preferred body temperatures (30 C for 13.5 h per day) grew 1.5 times as fast (0.16 g/day). Long-term thermal treatment had a significant reverse acclimation effect on preferred body temperature (T-p): T-p was 1.2 C lower in thermoregulatory individuals than in Chose kept at 25 C. Feeding and time of day also had significant but minor effects on T-p. Despite their nocturnal ecology, leopard geckos seem to be typical among Lizards in requiring a diurnal heat source for maximal growth. This result provides a physiological explanation for the observation that some nocturnal lizards thermoregulate in burrows during the day, and may have implications for the biogeography of nocturnal ectotherms.
引用
收藏
页码:157 / 162
页数:6
相关论文
共 44 条
[11]  
Dawson W.R., 1975, PERSPECTIVES BIOPHYS, p443? 473
[12]   A PHYLOGENETIC ANALYSIS OF PHYSIOLOGICAL-ECOLOGICAL CHARACTER EVOLUTION IN THE LIZARD GENUS COLEONYX AND ITS IMPLICATIONS FOR HISTORICAL BIOGEOGRAPHIC RECONSTRUCTION [J].
DIAL, BE ;
GRISMER, LL .
SYSTEMATIC BIOLOGY, 1992, 41 (02) :178-195
[13]  
GATTEN RE, 1974, COPEIA, P912
[14]   ACTIVITY AND THERMOREGULATION OF THE SNAKE NATRIX-MAURA .2. A SYNOPTIC MODEL OF THERMAL BIOLOGY AND THE PHYSIOLOGICAL ECOLOGY OF PERFORMANCE [J].
HAILEY, A ;
DAVIES, PMC .
JOURNAL OF ZOOLOGY, 1988, 214 :325-342
[15]  
HAILEY A, 1987, HERPETOL J, V1, P159
[16]  
HARLOW HJ, 1976, J COMP PHYSL, V11, P1
[17]  
Huey R.B., 1982, Biology of Reptilia, V12, P25
[18]   COST AND BENEFITS OF LIZARD THERMOREGULATION [J].
HUEY, RB ;
SLATKIN, M .
QUARTERLY REVIEW OF BIOLOGY, 1976, 51 (03) :363-384
[19]  
HUEY RB, 1987, EVOLUTION, V41, P1098, DOI 10.1111/j.1558-5646.1987.tb05879.x
[20]   THERMAL BIOLOGY OF NOCTURNAL ECTOTHERMS - IS SPRINT PERFORMANCE OF GECKOS MAXIMAL AT LOW BODY TEMPERATURES [J].
HUEY, RB ;
NIEWIAROWSKI, PH ;
KAUFMANN, J ;
HERRON, JC .
PHYSIOLOGICAL ZOOLOGY, 1989, 62 (02) :488-504