. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 10 SO30 40 60 80 70 80 90 100 1 io TIME - DATS •330 310 § M»o g 270 ?! o 250 Jj 230 2 a 210 2 o 190 * 170 160 FIG. 1. Rates of oxygen consumption and body weights during the development of diapause and non-diapause types of animals at constant temperature of 28° C. Ordinates at left, millimeters change of manometer fluid per hour per gram or- ganism (same manometer used throughout experiment; to convert readings into actual amounts of oxygen, results are multiplied by factor for the manometer in question). Ordinates at r
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 10 SO30 40 60 80 70 80 90 100 1 io TIME - DATS •330 310 § M»o g 270 ?! o 250 Jj 230 2 a 210 2 o 190 * 170 160 FIG. 1. Rates of oxygen consumption and body weights during the development of diapause and non-diapause types of animals at constant temperature of 28° C. Ordinates at left, millimeters change of manometer fluid per hour per gram or- ganism (same manometer used throughout experiment; to convert readings into actual amounts of oxygen, results are multiplied by factor for the manometer in question). Ordinates at right, body weight in milligrams. Abscissae, time in days indicated. Letters indicate different periods in life cycle of organisms. Large letters for diapause type, small ones for non-diapause type. A = spinning of cocoon. B = beginning of diapause. C = end of diapause. D = formation of pre- pupa. E = pupation. F —. pigmented pupa ready to emerge. W • = body weight. - — oxygen consumption, non-diapause type. — = oxygen con- sumption, diapause type. = body weight, non-diapause type. body weight, diapause type. For further description, see text. tion can not be obtained. After the spinning of the cocoon, the animal becomes less active and it is largely for this reason that the results pre- sented in this paper begin at this point in the organism's development. Prior to and during the spinning of the cocoon, the alimentary canal is emptied of waste materials and this too adds much to the desirability of beginning measurements of oxygen consumption rates and changes in body weights at this stage. In Fig. 1 the rates of oxygen consumption and body weights of a typical non-diapause type individual are graphically shown. From an inspection of this figure it will be noted that the rates of oxygen con- sumption during the spinning of the cocoon are at first high but after. Please note that these images are extracted from scanned page images that may have been digitally enhan
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
