File 1 -- Sex Induction Density Season: Growth season (1, 5, 6) Chemostat: Culture chamber identity Treatment: Ephemeral or permanent Mixis density: Sex induction density (females/mL) File 2 -- Sex Frequency DaysIntoSeason: Day in 6th season on which bioassay was performed Total: Total number of females in bioassay FreqMictic: Percentage of females that were sexual (mictic) Treatment: Ephemeral or permanent Chemostat: Culture chamber identity File 3 -- Diapausing Embryo Production Sample: Identity of sample, where first number and letter identify chemostat, with E representing ephemeral and P representing permanent, and Resets 1-6 referring to the end of seasons 1-6 at which diapausing embryos were collected. Chemostat: Culture chamber identity Treatment: Ephemeral or Permanent Season: Growth season (1-6) TotalFemales: Total number of females in the chemostat in the season. Derived from the mean total female density (file below) multiplied by 570 mL multiplied by total days in the season. TotalEmbryos: Total number of diapausing embryos per chemostat per season. EmbryosPerFemale: TotalEmbryos divided by TotalFemales. Note: this serves to normalize diapausing embryo production to population size; it is not a fecundity estimate because some females do not produce diapausing embryos. File 4 -- Diapausing Embryo Hatching Sample: Identity of sample, where first number and letter identify chemostat, with E representing ephemeral and P representing permanent, and Resets 1-6 referring to the end of seasons 1-6 at which diapausing embryos were collected. WeeklyTotalHatch: Number of diapausing embryos that hatched in the week. PercentageHatch: Percentage of diapausing embryos that hatched in the week. Chemostat: Culture chamber identity Treatment: Ephemeral or Permanent Season: Growth season (1-6) File 5 -- Density Counts Chemostat: Culture chamber identity Treatment: Ephemeral or Permanent Season: Growth season (1-6) Day: Day in experiment TotalFemDensity: Density of all females (nonovigerous and ovigerous, asexual and sexual) from manual counts MaleDensity: Density of males from manual counts Males per female: The number of males produced by an unfertilized mictic female on a given day in the chemostat DensityREBearingFem: Density of females carrying diapausing embryos (i.e., ovigerous mictic females) UnfertMicticFemDensity: Male density / males-per-female TotalMFemDensity: Total mictic female density, computed as: DensityREBearingFem + UnfertMicticFemDensity TotalAmicticDensity: Total female density - Total mictic female density. If the value is ≤0 (e.g., during low-density conditions after ephemeral resets) replace the value with 0.01 (~6 females per chemostat). See Methods section of published manuscript. *NB: Null values for Eph at day 197 due to counts being unavailable due to reset. See Methods of published manuscript for explanation of resets. File 6 -- Fecundity LineageFecundity: Total progeny produced by a female (only counting live, hatched progeny) in her lifetime Identity: Code given to distinguish female lineages MicticStatus: Whether the female assayed was mictic or amictic Season: Growth season (1,5,6) Chemostat: Culture chamber identity Treatment: Ephemeral or Permanent File 7 -- Lifespan LineageLifespan: Total lifespan of the female Identity: Code given to distinguish female lineages MicticStatus: Whether the female assayed was mictic or amictic Season: Growth season (5,6) Chemostat: Culture chamber identity Treatment: Ephemeral or Permanent