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The ratio clutch weight: body weight in Lacerta vivipara is 0.4; larger lizards produce more eggs, and total clutch weight is isometric with body weight. The clutch represents between 7% and 9% of the estimated annual assimilation of a female lizard, and 23–24% of the assimilation during the period between emergence from hibernation and the establishment of(More)
There is evidence that dermal photic responsiveness can be found in a wide range of animals. Behavioral responses to dermal stimulation by light have been observed in pigeon squabs and new-born rats, and more recently in a sea snake. Here we report that painting the dorsal surface of the lizard (Podarcis muralis) with opaque black paint impairs the animal's(More)
Decreasing levels of simulated solar radiation have the following effects in the diurnal basking lizard Lacerta vivipara: (i) increase in time spent basking with a consequent decrease in time available for foraging (ii) decrease in speed of movement whilst foraging (iii) decrease in total foraging distance, and hence contact with potential prey (iv)(More)
This paper reviews the literature on growth in reptiles. The current consensus is that growth data for small and medium-sized reptiles are best fitted by logistic-by-mass equations, data for larger reptiles by the von Bertalanffy equation. Experiments on the relationships between behavioural thermoregulation, food consumption and growth in both the(More)
Data from the Time Projection Chamber at the SLAC storage ring PEP have been used to study the inclusive production of charged hadrons. Particles were identified by simultaneous dE/dz and momentum measurements. Cross sections and particle fractions for T* , k*, and p(p) are given as a function of several variables. Predictions of various hadronization(More)
Occasional patients have excessive defibrillation energy requirements despite appropriate transvenous defibrillation lead position and modification of defibrillation waveform and configuration. Preliminary data suggest that use of subcutaneous defibrillation electrode arrays with nonthoracotomy systems is associated with a substantial reduction in(More)
Young, previously uninfected white mice became infected with Hymenolepis nana when exposed in small cages to parasite eggs which had been sprinkled in suspension onto the floor of their cage, or to faeces from mice with patent infections. The mean daily probabilities of infection for individual eggs under these two conditions were 2-9 X 10(-6) and 5-4 X(More)