Supplement 1. Growth rate data and R code for analyzing ontogenetic performance shifts, and R code illustrating the larval life cycle simulations.

File List NilssonOrtman_RGRdata.csv (MD5: 9103c37572274e112feb188ef1912f84) NilssonOrtman_mixed_models.R (MD5: c603009602f053f3413dc3398360bdee) NilssonOrtman_simulation.R (MD5: 9a430118b8c60c29b77b0519b9c3cd7a) Description NilssonOrtman_RGRdata.csv -- Relative Growth Rate (RGR) data NilssonOrtman_mixed_models.R -- R code for analyzing RGR data NilssonOrtman_simulation.R -- R code for simulating larval life cycles The supplements are designed to allow the reader to understand the statistical analysis used to produce Table 3 in the main text, and to run the simulations of larval life history. To run the code included in the supplements requires an installation of the statistical package R and the R packages RNetCDF and nlme. The first supplement, NilssonOrtman_RGRdata.csv, contains all the necessary data on size-corrected larval growth rates used to produce Fig. 6 in the main text. Using the R code in the second supplement, NilssonOrtman_mixed_models.R, together with the data in NilssonOrtman_RGRdata.csv, allows the reader to recreate the mixed-effect models analysis used to produce Table 3 in the main text. The third supplement, NilssonOrtman_simulation.R, contains stand-alone R code using simulated climate data illustrating the approach underlying the larval life cycle simulations used to estimate ontogenetic changes in the thermal niche of Coenagrion species.