Table 1. Female longevity responses of four Drosophila species in response to four dietary treatments.
| Species and treatment | n | mean | SEM | p-value | median | range | skew | kurtosis |
|---|---|---|---|---|---|---|---|---|
| D. mel. | ||||||||
| no yeast | 26 | 19.12 | 1.01 | 0.0001 | 19.50 | 27 | -1.24 | 3.97 |
| Minimum | 27 | 28.44 | 2.92 | - | 28.00 | 59 | 0.61 | 0.47 |
| ad libitum | 30 | 23.37 | 3.12 | >0.05 | 23.00 | 66 | 0.66 | 0.19 |
| ad libitum with rapa | 31 | 12.13 | 1.14 | 1.1x10-7 | 12.00 | 25 | 0.06 | -0.60 |
| D. gut. | ||||||||
| no yeast | 30 | 12.40 | 1.03 | 6.8x10-7 | 14.50 | 18 | -0.46 | -1.08 |
| Minimum | 30 | 30.30 | 3.76 | - | 25.00 | 74 | 0.85 | 0.03 |
| ad libitum | 30 | 55.60 | 5.60 | 3.5x10-4 | 51.00 | 124 | 0.48 | 0.41 |
| ad libitum with rapa | 30 | 28.03 | 3.95 | >0.5 | 17.00 | 76 | 0.81 | -0.50 |
| D. def. | ||||||||
| no yeast | 29 | 8.17 | 0.35 | 5.1x10-9 | 8.00 | 9 | -0.20 | 1.40 |
| Minimum | 30 | 16.87 | 1.38 | - | 16.00 | 30 | 0.36 | -0.58 |
| ad libitum | 30 | 36.43 | 3.68 | 2.9x10-7 | 34.50 | 75 | 0.08 | -0.68 |
| ad libitum with rapa | 30 | 27.47 | 2.47 | 3.7x10-5 | 27.00 | 53 | -0.17 | -0.13 |
| D. tri. | ||||||||
| no yeast | 26 | 13.19 | 0.62 | 8.6x10-7 | 13.50 | 15 | -2.36 | 8.17 |
| Minimum | 29 | 32.48 | 4.36 | - | 25.00 | 89 | 1.25 | 0.85 |
| ad libitum | 29 | 60.31 | 5.33 | 1.6x10-4 | 57.00 | 118 | 0.08 | -0.17 |
| ad libitum with rapa | 29 | 68.24 | 4.17 | 4.5x10-6 | 75.00 | 71 | -0.38 | -1.09 |
Measures of female lifespan in [days] (mean and median) for D. mel., D. gut., D. def., and D. tri. treated with diets ranging from no yeast, minimum (1 scoop/fly/day), to ad libitum, as well as an ad libitum yeast diet on rapamycin-treated medium (200 μM). n = number of flies going into the analysis; escaped or flies killed by accident were discarded. The mean and median values are given in [days]. p-Values were obtained by comparing test conditions to minimum feeding of that species and analyzed using pairwise comparison using Log-Rank.