Behavior of juvenile lizards (Iguana iguana) in a conflict between temperature regulation and palatable food

被引:22
作者
Balasko, M
Cabanac, M [1 ]
机构
[1] Univ Laval, Fac Med, Dept Physiol, Quebec City, PQ 61K 7P4, Canada
[2] Univ Pecs, Sch Med, Dept Pathophysiol, Pecs, Hungary
关键词
lizard; Iguana iguana; motivation; emergent cognition; common currency;
D O I
10.1159/000006570
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
Juvenile green iguanas were placed in a situation of conflict between two motivations: a thermoregulatory drive and the attraction of a palatable bait. To be able to reach the bait (lettuce), they had to leave a warm refuge, provided with standard food, and venture into a cold environment. In experiment 1 the time interval between sessions with bait, ranging from 1 to 8 days, had no effect on the duration of stay on the bait. This result shows that the lettuce was not a necessary food, deprivation of which would have had to be compensated for. In experiment 2 as the ambient temperature at the bait decreased the lizards spent less time feeding on lettuce, and they visited the bait less frequently. This result shows that the lizards traded off the palatability of the bait with the disadvantage of the cold. These findings support the hypothesis that a common currency makes it possible for lizards to compare two sensory modalities.
引用
收藏
页码:257 / 262
页数:6
相关论文
共 40 条
[1]  
Avery R.A., 1982, Biology of Reptilia, V12, P93
[2]  
Avery R.A., 1985, P45
[3]   STOCHASTIC DUAL-LIMIT HYPOTHESIS FOR BEHAVIORAL THERMOREGULATION IN LIZARDS [J].
BARBER, BJ ;
CRAWFORD, EC .
PHYSIOLOGICAL ZOOLOGY, 1977, 50 (01) :53-60
[4]  
CABANAC H P, 1971, International Journal of Biometeorology, V15, P239, DOI 10.1007/BF01803905
[5]   PLEASURE - THE COMMON CURRENCY [J].
CABANAC, M .
JOURNAL OF THEORETICAL BIOLOGY, 1992, 155 (02) :173-200
[6]   TILIQUA SCINCOIDES - TEMPERATURE-SENSITIVE UNITS IN LIZARD BRAIN [J].
CABANAC, M ;
HAMMEL, T ;
HARDY, JD .
SCIENCE, 1967, 158 (3804) :1050-&
[7]   STRATEGIES ADOPTED BY JUVENILE LIZARDS FORAGING IN A COLD ENVIRONMENT [J].
CABANAC, M .
PHYSIOLOGICAL ZOOLOGY, 1985, 58 (03) :262-271
[8]   DRINKING IN A PATCHY ENVIRONMENT - THE EFFECT OF THE PRICE OF WATER [J].
COLLIER, G ;
JOHNSON, DF ;
BORIN, G ;
MATHIS, CE .
JOURNAL OF THE EXPERIMENTAL ANALYSIS OF BEHAVIOR, 1994, 62 (02) :169-184
[9]   ACTIVITY PATTERNS IN RATS (RATTUS-NORVEGICUS) AS A FUNCTION OF THE COST OF ACCESS TO 4 RESOURCES [J].
COLLIER, GH ;
JOHNSON, DF ;
CYBULSKI, KA ;
MCHALE, CA .
JOURNAL OF COMPARATIVE PSYCHOLOGY, 1990, 104 (01) :53-65
[10]  
Cowles Raymond Bridgman, 1944, BULL AMER MUS NAT HIST, V83, P261