... Marder , J. and Raber , P. ( 1989 ). Beta-adrenergic control of trans-cutaneous evaporative cooling mechanisms in birds . J. Comp. Physiol. B 159 , 97 - 103 . 10.1007/BF00692688 Mcginnis , S. M. ( 1966 ). Sceloporus occidentalis : preferred body temperature of the Western...

... of these mechanisms can be difficult to separate. In this study, we used the western fence lizard, Sceloporus occidentalis , as an ectothermic model to determine whether a reduction in metabolic rate is sufficient to resist muscle atrophy. We induced atrophy through sciatic denervation of the gastrocnemius muscle...

...Barry Sinervo; Richard Hedges; Stephen C. Adolph ABSTRACT Decreased mobility of gravid females is thought to be an important cost of reproduction in lizards. We measured sprint speeds of female western fence lizards (Sceloporus occidentalis Baird and Girard) before and after they had oviposited...

...R. L. Marsh; A. F. Bennett ABSTRACT The isometric and isotonic contractile properties of fast-twitch glycolytic fibres of the iliofibularis muscle (FG-IF) in the lizard Sceloporus occidentalis were measured in vitro at 5°C intervals from 10 to 40°C. The mean isometric parameters at 35°C...

...R. L. Marsh; A. F. Bennett ABSTRACT Sprint velocity of the lizard Sceloporus occidentalis was maximal at preferred body temperature (T b , 35°C). Mean running velocity (V R ) and stride frequency (f) at this temperature were 3·23 ± 0·7 (mean ± S.E.M.) ms −1 and 15·6 ± 0·3 s −1 , respectively. V R...