From: Thermal plasticity in Drosophila melanogaster: A comparison of geographic populations
a) ANCOVA at 12°C. The population from Saõ Tomè had no offspring production and was omitted from the analysis. | |||||||
---|---|---|---|---|---|---|---|
Source of variation | df | MS | F | ||||
Polynomial regression | 2 | 1888 | 3514 *** | ||||
Polynomial regression X population | 6 | 70 | 130 *** | ||||
Residuals | 83 | 0.5 | |||||
b) ANCOVA at 18°C, 28°C and 31.2°C. | |||||||
18°C | 28°C | 31.2°C | |||||
Source of variation | df | MS | F | MS | F | MS | F |
Polynomial regression | 2 | 101664 | 13899*** | 113109 | 16759*** | 660 | 1412*** |
Polynomial regression X location | 2 | 592 | 0.597 | 17 | 0.01 | 35.9 | 4.8 † |
Polynomial regression X population within location | 6 | 991 | 135.5*** | 1631 | 241.6*** | 7.5 | 16 *** |
Residuals | 126/100/24 | 7 | 7 | 0.5 |