Research Perspective Volume 16, Issue 17 pp 12108—12122

Figure 7. Study of concurrent reproductive potential using varying coefficient model. The intercept function β₀(t) represents the (approximate) mean reproductive rate associated with daily egg-laying counts in female Mediterranean fruit flies that survived past 35 days. The regression coefficient function β₁(t) depicts the time-varying effect of the accumulated egg-laying count on the immediate reproductive rate. The estimated coefficient functions are based on the fitted concurrent regression (1). The 95% pointwise confidence bands are based on 1000 bootstrap replicates, using concurrent regression (1). If zero is not located within the confidence band this indicates pointwise (not simultaneous) statistical significance in the corresponding age interval.