AL
 ---- AL-R at 5th
125 --A--- AL-R at Ov
 -- -R
 --+-- R-AL at 5th


 a
a a a


 25 a
25
 bn-


1st Instar 2nd Instar 3rd Instar 4th Instar 5th Instar 6th Instar Pre-Ov Adult Post-Ov Adult


10.0


-o-AL
---- AL-Rat 5th
----- AL-R at Ov
--- R
---- R-AL at 5th


-2.0


 1st Instar 2nd Instar 3rd Instar 4th Instar 5th Instar 6th Instar Pre-Ov Adult Post-Ov Adult


Figure 5-4. Duration of (a) and specific growth rate during (b) each life-history stage for insects
 in each of five treatment groups. Each point represents mean + standard error. Stages
 were categorized as each of six instars, adult prior to first oviposition (pre-ov adult),
 and adult after first oviposition (post-ov adult). AL-R at Ov insects lost proportionally
 more body mass than AL insects after first oviposition, but all other pairwise
 comparisons of post-oviposition adult growth rates were not significant (Mann-
 Whitney U tests, p > 0.005). Abbreviations: AL = ad libitum, R = restricted. See
 Figure 5-1 for a description of diet treatments. Sample sizes are the same as in Figure
 5-2. Means with different letters are significantly different among treatment groups
 within life-history stages. See text for data analysis.