Simple signals indicate which period of the annual cycle drives declines in seasonal populations

This data describes the long-term population dynamics of seasonal, laboratory populations of Drosophila melanogaster (the common fruit fly) experiencing chronic, multi-generation reductions in habitat. Populations were exposed to habitat loss in either the breeding or non-breeding period (seasonT), and were subject to one of two rates of loss: 10% or 20% per generation (lossT).
The data set includes time series of two vital rates and two other intrinsic metrics for each replicate population (repID). Vital rates: log per capita reproductive output (repr), log per capita non-breeding survival (surv). Intrinsic metrics: coefficient of variation (coefvar), lag-1 autocorrelation (autocorr). These values were calculated separately for each replicate using a sliding window of three generations. We also derived a composite of these variable (pc1) using a principal component analysis. presented values are standardized and centred within generation to account for expected divergence of metrics through time. We tested the effect of the season of treatment and generation on reproduction, survival, and reproduction, using separate models for each rate of habitat loss.