Population: DSPR population (A or B)
PopulationReplicate: DSPR population replicate (A1, A2, B1, B2)
RIL: DSPR RIL stock number (replicates are indicated as different rows containing the same stock number)
NicotineViability: Fraction of 30 1st-instar larvae that emerge as adults on nicotine-supplemented media
ControlViability: Fraction of 30 1st-instar larvae that emerge as adults on control media