“…All analyses were performed with R Version 4.0 (2020-04-24; R Core Team, 2020), with packages data.table Version 1.13.0 (Dowle & Srinivasan, 2021), nlstools Version 1.2 (Baty et al, 2015), xfun Version .22 (Xie, 2021), and parameters Version 1.2 (Lüdecke et al, 2020). I used the R function nls to fit Equation 27 to data and the function confint2 from nlstools to calculate 95% confidence intervals (CIs) for g av .…”