Table 1.
Cumulative reproductive data (mean ± SE) upon dietary restriction in grasshoppers. ShamFD is fully reproductive, fully fed; ShamDR is fully reproductive, dietary restricted. The only consistent effect of DR on reproductive tactics was the reduction in the size of each clutch. Eggs/Clutch is the grand mean of the average number of eggs per clutch for each individual. Time/Clutch is the grand mean of the average time between clutches of eggs for each individual. Melanization is an immune response in which a hardened growth begins to encase the ovaries (Beckage 2008); counts are for presence/absence. LRE is Lifetime Reproductive Effort (Charnov et al. 2007); clutch size, average adult life span, and adult mass were the factors that impacted these scores.
Number of Eggs | Number of Clutches | Eggs/Clutch | Time/Clutch | Melanization | LRE | |
---|---|---|---|---|---|---|
ShamFD | 440 ± 36.5 | 9.73 ± 0.58 | 48.3 ± 1.5 | 19.0 ± 0.61 | 19 out of 40 | 1.9 |
ShamDR | 381 ± 30.8 | 10.90 ± 0.79 | 37.4 ± 1.2 | 20.3 ± 0.65 | 12 out of 40 | 2.1 |
P = 0.22 | P = 0.32 | P < 0.001 | P = 0.14 | P = 0.17 |