. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 388 NATHAN KALISS AND MARC A. GRAUBARD RESULTS Since the rate of egg production in tin- fruit-lly changes rapidly with time (Shapiro, 1932), a convenient comparison of the temperature effect on egg production is obtained from a plot of the total eggs laid up to a given time. Table I gives the results for each temperature of development and egg-laying. In the table, averages of from 4-7 females (as indicated) are used. Averaging is justified because prac-. 6 12 18 24 30 36 42 48 54 60 66 72 78 t in days FIG. 2. Plots of the d
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 388 NATHAN KALISS AND MARC A. GRAUBARD RESULTS Since the rate of egg production in tin- fruit-lly changes rapidly with time (Shapiro, 1932), a convenient comparison of the temperature effect on egg production is obtained from a plot of the total eggs laid up to a given time. Table I gives the results for each temperature of development and egg-laying. In the table, averages of from 4-7 females (as indicated) are used. Averaging is justified because prac-. 6 12 18 24 30 36 42 48 54 60 66 72 78 t in days FIG. 2. Plots of the data presented in Table I, using Shapiro's equation of t/lnN --= at + b. The curves in the upper half of the figure are for females ovi- positing at the same temperatures at which they were bred. The curves in the lower half of the figure are for females that were bred at 25° C. and transferred to i In- DI lici temperatures to oviposit. tirally identical curves are obtained for each female ol any one experiment. The data of Table I are shown graphically in Fig. 1. Although all the curves an- sigmoid in shape, their central portions may reasonably be con>idered linear. By disregarding the curved initial and final. 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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