Datasheet description -Survival: female survival data idff: female identity t1: last day seen alive t2: first day seen dead (NA: censored female) Sib: clutch identity SibSize: clutch Size Tray: tray number during the experiment FemYr: female year of origine (1: 1985, 2: 1996, 3: 2007) MaYr: male year of origine (1: 1985, 2: 1996, 3: 2007) AFM: female age when first male introduced FBD: time between the start of the experiment and female birth date Iso: isolation time between brood individualization and first male introduction -ProbRepro: Probability to reproduce data idff: female identity Lay: reproduction (0: no reproduction, 1: at least one clutch/brood) Sib: clutch identity SibSize: clutch Size Tray: tray number during the experiment FemYr: female year of origine (1: 1985, 2: 1996, 3: 2007) MaYr: male year of origine (1: 1985, 2: 1996, 3: 2007) AFM: female age when first male introduced FBD: time between the start of the experiment and female birth date Iso: isolation time between brood individualization and first male introduction -LRS: Lifetime Reproductive Success data idff: female identity LRScyst: number of cysts laid LRSnaup: number of nauplii laid LRS: total number of cyst and nauplii laid Sib: clutch identity SibSize: clutch Size Tray: tray number during the experiment FemYr: female year of origine (1: 1985, 2: 1996, 3: 2007) MaYr: male year of origine (1: 1985, 2: 1996, 3: 2007) AFM: female age when first male introduced FBD: time between the start of the experiment and female birth date Iso: isolation time between brood individualization and first male introduction -WRS: Weekly Reproductive Success data idff: female identity Time: Number of weeks after first reproduction WRSnaup: number of nauplii laid that week WRScyst: number of cysts laid that week WRS: total number of cyst and nauplii laid that week Sib: clutch identity SibSize: clutch Size Tray: tray number during the experiment FemYr: female year of origine (1: 1985, 2: 1996, 3: 2007) MaYr: male year of origine (1: 1985, 2: 1996, 3: 2007) AFM: female age when first male introduced FBD: time between the start of the experiment and female birth date Iso: isolation time between brood individualization and first male introduction -ReproRate: Reproductive Rate data idff: female identity Time1: week before reproductive event Time2: week with reproductive event Sib: clutch identity SibSize: clutch Size Tray: tray number during the experiment FemYr: female year of origine (1: 1985, 2: 1996, 3: 2007) MaYr: male year of origine (1: 1985, 2: 1996, 3: 2007) AFM: female age when first male introduced FBD: time between the start of the experiment and female birth date Iso: isolation time between brood individualization and first male introduction -r: Intrinsic rate of increase data (used to calculate relative fitness) idff: female identity r: female intrinsic rate of increase Sib: clutch identity SibSize: clutch Size Tray: tray number during the experiment FemYr: female year of origine (1: 1985, 2: 1996, 3: 2007) MaYr: male year of origine (1: 1985, 2: 1996, 3: 2007) AFM: female age when first male introduced FBD: time between the start of the experiment and female birth date Iso: isolation time between brood individualization and first male introduction