DIEL PATTERNS OF ACTIVITY AND OF SELECTED AMBIENT TEMPERATURE OF THE SAND-SWIMMING LIZARD SPHENOPS SEPSOIDES (REPTILIA: SCINCIDAE)
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Diel patterns of activity and temperature selection were determined for two age classes of the sand-swimming skink, Sphenops sepsoides, under laboratory conditions. Activity levels were the highest between 1500 and 2100 h, and lowest between 2100 and 0600 h. Selected ambient temperatures averaged 29.7°C but varied during the diel cycle with the highest temperatures recorded at 1800 h and the lowest at 1200 h. Selected ambient temperatures were consistently about 1°C higher for juvenile than for adult individuals. The period that lizards were most active in corresponded to the period of highest selected ambient temperature. These patterns do not match those of nocturnal geckos in the field, which are the most active after dark but select high body temperatures during the day. However, these results are consistent with observations of activity and selected body temperatures of Eremiascincus fasciolatus, another sand-swimming skink. Field observations on S. sepsoides suggest that sub-surface activity is not initiated until after dark. The discrepancy between field and laboratory observations may be a consequence of vertical thermoregulation movements in the field that allow lizards to increase their body temperatures late in the day. These movements would not be reflected by trails or tracks on the sand surface in the field but would be reflected by trails or tracks on the sand surface in the laboratory where shallow sand levels allowed lizards to move only horizontally on the thermal gradient.
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-
AnonymousSunrise and Sunset Tables for Key Cities and Weather Stations of the U.S. Gale Research Company, Michigan 1977
-
Avery R.A.Physiological aspects of lizard growth: the role of thermoregulation Zoological Society of London. Symposia 1984 52 407 424
-
Beuchat C.A., Ellner S.A quantitative test of life history theory: thermoregulation by a viviparous lizard Ecological Monographs 1987 57 45 60
-
Bennett A.F., John-Alder H.Thermal relations of some Australian skinks (Sauria: Scincidae) Copeia 1986 1986 57 64
-
Bustard H.R.Activity cycle and thermoregulation in the Australian gecko Gehyra variegata Copeia 1967 1967 753 758
-
Cowgell J., Underwood H.Behavioral thermoregulation in lizards: a circadian rhythm Journal of Experimental Zoology 1979 210 189 194
-
Cowles R.B., Bogert C.M.A preliminary study of the thermal requirements of desert reptiles Bulletin of the American Museum of Natural History 1944 83 261 296
-
Dial B.E.The thermal ecology of two sympatric nocturnal Coleonyx (Lacertilia: Gekkonidae) Herpetologica 1978 34 194 201
-
Heatwole H.Thermal ecology of the desert dragon Amphibolurus inermis Ecological Monographs 1970 40 425 457
-
Hetherington T.E.Use of vibratory cues for detection of insect prey by the sandswimming lizard Scincus scincus Animal Behaviour 1989 37 290 297
-
Huey R.B., Temperature, physiology, and the ecology of reptiles. Biology of the Reptilia, Vol Gans C., Pough F.H.Academic Press New York 1982 25 9112. (Physiology C: Physiological Ecology)
-
Lang J.W.Thermal preferences of hatchling New Guinea crocodiles: effects of feeding and ontogeny Journal of Thermal Biology 1981 6 73 78
-
Licht P., Dawson W.R., Shoemaker V.H., Main A.R.Observations on the thermal relations of Western Australian lizards Copeia 1966 1966 97 110
-
Lillywhite H.B., Licht P., Chelgren P.The role of behavioral thermoregulation in the growth energetics of the toad Bufo boreas 1973 54 375 383Ecology
-
Moll E.O., Legler J.M.The life history of a neotropical slider turtle, Pseudemys scripta (Schoepff), in Panama Bulletin of the Los Angeles County Museum of Natural History, Science 1971 11 1 102
-
Mosauer W.Adaptive convergence in the sand reptiles of the Sahara and California: a study in structure and behavior Copeia 1932 1932 72 78
-
Peterson C.R.Daily variation in the body temperatures of free-ranging garter snakes Ecology 1987 68 160 169
-
Pianka E.R., Pianka H.D.Comparative ecology of twelve species of nocturnal lizards (Gekkonidae) in the Western Australian desert Copeia 1976 1976 125 142
-
Regal P.J.Voluntary hypothermia in reptiles Science 1967 155 1551 1553
-
Regal P.J., Circadian and low frequency rhythms in the temperature preference of a lizard. Chronobiology. Iguaku Shoin Ltd., Tokyo. pp Scheving L., Halberg F., Pauly J.1974 709 711
-
Rismiller P.D., Heldmaier G.The effect of photoperiod on temperature selection in the European green lizard, Lacerta viridis Oecologia 1982 53 222 226
-
Stevenson R.D., Peterson C.R., Tsuji J.S.The thermal dependance of locomotion, tongue flicking, digestion, and oxygen consumption in the wandering garter snake Physiological Zoology 1985 58 46 57
-
Werner Y.L.Distribution of the Saharan Sphenops sepsoides (Reptilia: Scincidae) in Israel and Jordan Herpetologica 1968 24 238 242
-
Werner Y.L., Whitaker A.H.Observations and comments on the body temperature of some New Zealand reptiles New Zealand Journal of Zoology 1978 5 375 393
-
White F.N.Temperature and the Galapagos marine iguana—insights into reptilian thermoregulation. Comparative Biochemistry and Physiology 45A: 1973 503 513
| All Time | Past 365 days | Past 30 Days | |
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DIEL PATTERNS OF ACTIVITY AND OF SELECTED AMBIENT TEMPERATURE OF THE SAND-SWIMMING LIZARD SPHENOPS SEPSOIDES (REPTILIA: SCINCIDAE)
In: Israel Journal of Ecology and EvolutionSearch for other papers by ROBIN M. ANDREWS in
Current site
Google Scholar
PubMed
Search for other papers by BRENDA S. KENNEY in
Current site
Google Scholar
PubMed
Diel patterns of activity and temperature selection were determined for two age classes of the sand-swimming skink, Sphenops sepsoides, under laboratory conditions. Activity levels were the highest between 1500 and 2100 h, and lowest between 2100 and 0600 h. Selected ambient temperatures averaged 29.7°C but varied during the diel cycle with the highest temperatures recorded at 1800 h and the lowest at 1200 h. Selected ambient temperatures were consistently about 1°C higher for juvenile than for adult individuals. The period that lizards were most active in corresponded to the period of highest selected ambient temperature. These patterns do not match those of nocturnal geckos in the field, which are the most active after dark but select high body temperatures during the day. However, these results are consistent with observations of activity and selected body temperatures of Eremiascincus fasciolatus, another sand-swimming skink. Field observations on S. sepsoides suggest that sub-surface activity is not initiated until after dark. The discrepancy between field and laboratory observations may be a consequence of vertical thermoregulation movements in the field that allow lizards to increase their body temperatures late in the day. These movements would not be reflected by trails or tracks on the sand surface in the field but would be reflected by trails or tracks on the sand surface in the laboratory where shallow sand levels allowed lizards to move only horizontally on the thermal gradient.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 259 | 83 | 18 |
| Full Text Views | 15 | 0 | 0 |
| PDF Views & Downloads | 17 | 0 | 0 |
