stage, such that AL-R at Ov insects had shortened lifespans compared to AL insects. A diet switch

from ad libitum to restricted feeding during development extended the duration of the fifth and

sixth instars relative to continuously ad libitum insects, but this difference was not sufficient to

mitigate the negative effect of FR on adult lifespan.

 As a result of decreased growth rates, insects that experienced FR at any point during

development were smaller at the adult molt than ad libitum insects. Although subsequent

reproductive output of food-restricted insects was significantly diminished, mean fecundities

differed significantly among treatment groups even when corrected for body mass at first

oviposition. Plasticity in adult size alone therefore does not explain the drastic differences in

fecundity I observed among treatment groups.

 Reproductive output may have been mildly constrained by ovarian morphology. Although

I detected no significant differences in total ovariole number among treatment groups when a

conservative post hoc test was used, I did find significant differences in ovariole number

between initially restricted and initially ad libitum insects when a more liberal post hoc test was

used. This result suggests that ovarian development in C. morosus is somewhat plastic in

response to diet. In Drosophila, ovariole number responds strongly to larval diet (Tu and Tatar

2003) and is correlated with fecundity (David 1970). Although ovariole number in C. morosus

appears to be much less plastic than in D. melanogaster, it is possible that decreased fecundity in

food-restricted insects in this study is partially explained by differences in ovary size but only for

insects that were food-restricted during early development.

 The primary determinant of fecundity in this study was adult intake, with approximately

83% of the variance in reproductive output explained by the total amount of food consumed

during the reproductive lifespan. Because of this strong, positive correlation between fecundity