This JEB-2022-00205.R2\_\_DATA\_README\_\_raw data1\_matings.txt file was generated on 2022-11-14 DATA FILE 1: JEB\_2022-00205.R2\_raw data\_matings Content: Female matings with each of their three mates, female survival, reproductive success, number of offspring Treatments: No-Sel, Post-P, Pre-M Missing data codes: NA C: Column CA - TREATMENT: Experimental treatments (3): No-Sel (relaxed selection - enforced monogamy), Post-P (post-copulatory - polyandry), Pre-M (pre-copulatory - monogamy) CB - DATE\_MATING: Date matings took place CC - FEM\_ID: Female identification CD - FEM\_MASS: Female body mass \[g\] CE - FEM\_AGE: Female age \[d\] from last moulting CF - MALE\_1: Male identification (1st mating) CG - M1\_MASS: Male body mass \[g\] (1st mating) CH - MALE\_2: Male identification (2nd mating) CI - M2\_MASS: Male body mass \[g\] (2nd mating) CJ - MALE\_3: Male identification (3rd mating) CK - M3\_MASS: Male body mass \[g\] (3rd mating) CL - HATCH\_SUX\_EC1: Reproductive success of egg cup 1 (y = hatched; n = not hatched) CM - HATCH\_SUX\_EC2: Reproductive success of egg cup 2 (y = hatched; n = not hatched) CN - HatchSucTOT: Reproductive success of both egg cups 1 and 2 combined (y = hatched; n = not hatched) CO - HATCH\_AGE\_EC1: Time until hatching of first offspring (from date when egg cup 1 was provided) \[d\] CP - HATCH\_AGE\_EC2: Time until hatching of first offspring (from date when egg cup 2 was provided) \[d\] CQ - HatchAgeMean: Time until hatching of first offspring (averaged over egg cups 1 and 2) \[d\] CR - FemaleSurvival: Female survival from day of mating until death \[d\] CS - Status: Censoring status (1 if an individual was censored, 2 otherwise) - relevant for survival analysis (see survminer in XXX) CT - N\_OFFSPR\_EC1: Number of offspring hatched from egg cup 1 CU - N\_OFFSPR\_EC2: Number of offspring hatched from egg cup 2 CV - TOT\_N\_OFF: Number of offspring hatched from both egg cups 1 and 2 CW - Age\_off\_EC1: Age of offspring of egg cup 1 on the day of counting (from day of hatching) \[d\] CX - Age\_off\_EC2: Age of offspring of egg cup 2 on the day of counting (from day of hatching) \[d\] CY - AgeOffMean: Averaged age of offspring of egg cups 1 and 2 on the day of counting (from day of hatching) \[d\] DATA FILE 2: JEB\_2022-00205.R2\_raw data\_offspringI Content: Offspring survival, mass at maturity, age at maturity, age at death Treatments: No-Sel, Post-P, Pre-M Missing data codes: NA C: Column CA - Treatment: Experimental treatments (3): No-Sel (relaxed selection - enforced monogamy), Post-P (post-copulatory - polyandry), Pre-M (pre-copulatory - monogamy) CB - Offspring\_ID: Offspring identification CC - Sex: Sex determined after maturation (or as soon as secondary sexual traits were visible) CD - 1stM: Date when 1st measurement was taken CE - Date\_death: Date when individual died CF - Mass\_maturity: Individual body mass at day of maturation \[g\] CG - Age\_maturity: Age at the day of maturation (from date of 1st measurement) \[d\] CH - Age\_death: Age at the day of death (from date of 1st measurement) \[d\] CI - Status: Censoring status (1 if an individual was censored, 2 otherwise) - relevant for survival analysis (see survminer in JEB-2022-00205.R2\_\_DATA\_README\_\_Codes, Female survival) DATA FILE 3: JEB\_2022-00205.R2\_raw data\_offspringII Content: Offspring body mass during development, relevant for growth curve analysis (see JEB-2022-00205.R2\_\_DATA\_README\_\_Codes, Offspring growth) Treatments: No-Sel, Post-P, Pre-M Missing data codes: NA C: Column CA - Treatment: Experimental treatments (3): No-Sel (relaxed selection - enforced monogamy), Post-P (post-copulatory - polyandry), Pre-M (pre-copulatory - monogamy) CB - Cricket\_ID: Offspring identification CC - Age: Offspring age at the time of body mass measurement \[d\] CD - Bodymass: Body mass taken at different time points of offspring development CE - Sex: Offspring sex determined after maturation (or as soon as secondary sexual traits were visible) DATA FILE 4: JEB\_2022-00205.R2\_raw data\_offspringIII Content: Averaged body masses per timepoint measured, including standard errors (see JEB-2022-00205.R2\_\_DATA\_README\_\_Figures, Growth curves) Treatments: No-Sel, Post-P, Pre-M Missing data codes: NA C: Column CA - Treatment: Experimental treatments (3): No-Sel (relaxed selection - enforced monogamy), Post-P (post-copulatory - polyandry), Pre-M (pre-copulatory - monogamy) CB - Timepoint: Timepoint of measurement/ day when measurement was taken \[d\] CC - N: Number of individuals measured on that day CD - avg.BM: Averaged body mass of individuals measured on that day CE - SE.low: avg.BM - SE CF - SE.high: avg.BM + SE CG - SD: Standard deviation CH - SE: Standard error DATA FILE 5: JEB\_2022-00205.R2\_raw data\_offspringIV Content: Percentages of successful (hatched) ad unsuccessful (not hatched) egg cups per treatment (see JEB-2022-00205.R2\_\_DATA\_README\_\_Figures, Reproductive success) Treatments: No-Sel, Post-P, Pre-M Missing data codes: NA C: Column CA - Treatment: Experimental treatments (3): No-Sel (relaxed selection - enforced monogamy), Post-P (post-copulatory - polyandry), Pre-M (pre-copulatory - monogamy) CB - Hatched: Hatched (Yes) or not hatched (No) CC - N: Percentages as numbers CD - Perc: Percentages CE - Number: Sample size