. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 16 DAVID L. DENLINGER Delay of pupariation in diapause-committed larvae Flies reared under diapause-inducing conditions pupariated later and over a greater span of time than flies reared under non-diapause conditions. Adult flies originating from one mass-reared batch were maintained under either a short or long daily photophase at 25° C, and all larvae were maintained at a short photo- phase at 26° C. At 24 hour intervals following collection of the larvae, the rear- 100 r NON-DIAPAUSE LOTS S bullota (III N = 1321 Slop Feed
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 16 DAVID L. DENLINGER Delay of pupariation in diapause-committed larvae Flies reared under diapause-inducing conditions pupariated later and over a greater span of time than flies reared under non-diapause conditions. Adult flies originating from one mass-reared batch were maintained under either a short or long daily photophase at 25° C, and all larvae were maintained at a short photo- phase at 26° C. At 24 hour intervals following collection of the larvae, the rear- 100 r NON-DIAPAUSE LOTS S bullota (III N = 1321 Slop Feed mq Pupariote 5 bullota ( Mo) N = 1186. 2 ' 4 ' 6 ' 8 ' 10 ' 12 ' 14 ' 16 ' 18 ' 20 ' 2 ' 4 ' 6 '8 ' 10 12 14 16 18 ' 20 ' DAYS AFTER LARVI POSITION lu 100 80 Q 60 40 & ft 20 Uj 6 7 8 9 10 1112 13 14 15 16 17 18 DAY OF PUPARIATION 8 9 10 II 12 13 14 15 16 17 DAY OF PUPARIATION FIGURE 2. Delay of pupariation and correlation with incidence of pupal diapause in Sarcophaga bitllata reared under diapause-inducing conditions. All bars are continuous to the base line. ing containers were examined, and the number of larvae having left the liver and the number having pupariated within the time interval were recorded. Pupae from diapausing lots were combined on the basis of the day of pupariation and were later examined to determine the incidence of diapause. Data for S. buUata (Mo.) and S. bitllata (111.) are recorded in Figure 2. Larvae from both the non-diapausing (long-day) lots and diapausing (short-day) lots cease feeding and leave the liver at approximately the same time. In the non-diapausing lots (Fig. 2A), pupariation follows immediately; by the seventh day following larviposition, over 90% of the larvae have pupariated. In con-. 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 Laborat
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
