. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 384 M. L. MCANELLY AND M. A. RANKIN 60t 50 I 40 2 30 13 Q i 20 10 i i i i i i I i i i i i i i ' r i i ' i ' i ' i ' i ' i • i ' i 2 4 6 8 10 12 14 16 18 2022 24262830 32 Adult Aqe(doys) FIGURE 4. Relationship between long flight and oviposition in an AZ female. Shaded bars represent flight duration for each day tested. Arrows indicate dates of oviposition. This individual laid 6 more egg pods after the last oviposition indicated on this figure at day 32. statistical significance in the decline in numbers of long flights made
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 384 M. L. MCANELLY AND M. A. RANKIN 60t 50 I 40 2 30 13 Q i 20 10 i i i i i i I i i i i i i i ' r i i ' i ' i ' i ' i ' i • i ' i 2 4 6 8 10 12 14 16 18 2022 24262830 32 Adult Aqe(doys) FIGURE 4. Relationship between long flight and oviposition in an AZ female. Shaded bars represent flight duration for each day tested. Arrows indicate dates of oviposition. This individual laid 6 more egg pods after the last oviposition indicated on this figure at day 32. statistical significance in the decline in numbers of long flights made by individuals, for the trend in this group is similar to that in the other groups. Since each individual was tested every two days, the observed decline in flight behavior with age might have been due to a deleterious effect of repeated flight testing on long flight behavior. Thus NM insects flown every other day from age 2 through 28 were compared with a group flown only twice, once on day 2 and again on day 14. Since these grasshoppers showed no significant difference in flight performance with age when compared to insects tested 7 times, we conclude that this effect is not due to repeated flight testing (Table I). Under the conditions of this study, the average age at first oviposition for each population ranged from day 21 to day 23, with the earliest observed oviposition at day 15. Thus these results, in conjunction with those discussed above, support the. -c 15 19 23 27 FIGURE 5. Decline in the percent of individually reared grasshoppers making long flights as a function of age. Vertical axis represents the proportion of animals that made 60 minute flights at a given age (in days on x axis). Closed circles represent males and open circles females. A. AZ grasshoppers, n's range from 11 (day 2) to 7 (d; / 28) in males and from 16 (day 2) to 9 (day 28) in females. Males: P < Females: P = [Sign Test comparison of the proportion of long flights made by eac
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
