. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 98 KENNETH D. ROEDER of the sound produced by Drosophila during flight (Williams and Galambos, 1950), and further harmonic analysis of both sound and movement patterns along the lines indicated by these authors would be of value. In contrast to these changes in wave form and amplitude, the frequency of thoracic movement remains fairly constant in individual insects at constant tem- perature. Many of the insects would take only short flights, ceasing activity. 100 MSEC. IMPURE 3. Spikes (lower trace) and thoracic movements (u
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 98 KENNETH D. ROEDER of the sound produced by Drosophila during flight (Williams and Galambos, 1950), and further harmonic analysis of both sound and movement patterns along the lines indicated by these authors would be of value. In contrast to these changes in wave form and amplitude, the frequency of thoracic movement remains fairly constant in individual insects at constant tem- perature. Many of the insects would take only short flights, ceasing activity. 100 MSEC. IMPURE 3. Spikes (lower trace) and thoracic movements (upper trace) in several flies. A. The onset of flight in Calliphora. B. Spontaneous termination of flight in the same insect. C. Irregular flight in the same insect following amputation of the wings. D. Short spontaneous (mid-air) burst of flight movements in Eristalis. E. Termination of flight in Lucilia after wing amputation. The spikes have heen recorded with increased amplification to show the small sinusoidal potential. spontaneously while suspended in mid-air. When this occurred (Fig. 3 B, D), the frequency of thoracic movement often remained unchanged while the amplitude declined steadily in stepless fashion, sometimes leaving a small trail of oscillation after the fly had apparently folded its wings. The smooth nature of the ampli-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
