Search Results

tetanus do not possess a simple relationship to wingbeat frequency. Additional parameters of muscle arc suggested for study. KEY WORDS: Contractile properties, M. pectoralis, flight. INTRODUCTION It is clear that among terrestrial vertebrates the storage of elastic strain energy in tendons, muscles, and

In: Netherlands Journal of Zoology

. INTRODUCTION Polysaccharides have been recognized as versatile organic compounds in a variety of biological systems. Outstanding amongst polysacchari- des of the animal tissues is glycogen. By virtue of its instant readiness to supply energy to the tissues and thus allowing them to function at their best

In: Netherlands Journal of Zoology

the field, showed no discernible shift of the calibration curve. Energy Consumption and Transmitting Range The power consumption plays a central role in developing the most suitable type of transmitter. The supply-voltage in our transmitter is obtained from two silveroxyde batteries of 1.5 V and 38

In: Netherlands Journal of Zoology

can be kept small (BAYER, 1921). B. Transport of Energy A number of authors have expressed the effects of the coupling be- tween joints in energtic terms. Since proximally located mono- articular muscles may support the movements of distally located joints which are not crossed by these mono

In: Netherlands Journal of Zoology

general cell metabolism of coronet cells of the saccus vasculosus of the rainbow trout, Salmo gairdneri Richardson, is clearly aimed at energy production, which may take place under aerobic as well as anaerobic conditions. The coronet cells are equipped with a structure (glycocalyx) and contain enzymes

In: Netherlands Journal of Zoology

(Io = 23577.4 kg cm2; h = 177332.3 kg cm2; 12 = 1056995.2 kg cm2) and the deviation of the swing is also kept small. From the registrations on the log paper sheets 302 Fig. 2. Diagram of the torsional pendulum. Further explanation in the text. (L) the damping, the dissipated energy and the shear

In: Netherlands Journal of Zoology

and a concomitant decrease in the Hb content is also seen. This indicates a low oxygen supply in the lizard during this phase. As such the oxygen affinity of the blood of lizards is low (POUGH, 1969: 885) and the increased energy demands during activity in most rep- tiles are met primarily by

In: Netherlands Journal of Zoology

obtained mean that Galemys pyrenaicus can be characteriscd as a stenophagous species in which energy input is obtained from not-very-mobile invertebrates with a large amount of biomass (Trichoptera larvae), and other small but numerous and accessible taxons (Ephemeroptera larvae). KEY WORDS: diet, trophic

In: Netherlands Journal of Zoology

.: 55) it is tempting to speculate further about the cyclic aspects of the energy balance. The only available data point to close correlation with reproduction: accumulation of energy during the summer, consumption during the winter and the reproductive period (SMITH, 1949, with reference to sugar, fat

In: Netherlands Journal of Zoology

energy metabolism. Consequently, a regulation mechanism has evolved which enables the excess car- bohydrate to be eliminated. Study of this specialisation has clearly shown that func- tions which are associated with specific tissues can be successfully examined and com- pared using morphological criteria

In: Netherlands Journal of Zoology