Data: random regression analysis with the within-individual centring technique

Data used for the second plasticity analysis (random regression analysis with the within-individual centring technique), where each line represented an individual observation within a year for all females observed at least in two years. Columns included year (YEAR), female identity (ID) and its age (AGE; SY=second-year, ASY=after second-year), farm identity (FARM), laying date (LD; julian days), temperature (TEMPs; std), density (DENSITYs; std) and latitude (LATs; std), between-individual component of temperature (M.TEMP; within individual mean of TEMPs) and density (M.DENSITY; within individual mean of DENSITYs), within-individual component of temperature (TEMP.PLAST; deviation from the individual mean) and density (DENSITY.TEMP; deviation from the individual mean).