Figure 1 Caption:
Raw occurrence data used in the Fric et al. (2020) analysis and flight period lengths by latitude for 3 datasets (A: Agriades glandon in N. America, B:Glaucopsyche lygdamus in N. America, C: Hesperia comma in Europe) and year for 1 dataset (D: Parnassius smintheus in N. America). Results for these species were presented in Fric et al. (2020) Figure 1 to demonstrate varied phenological patterns. Red points represent observations used as both onset and termination. Marginal histograms show data density across latitudes (above the plot) and time of year (to the right of the plot). Because onset and termination analyses used only one day of year (DOY, calculated as SuccDay) per latitudinal band, panel D identifies onset (▲) and termination (▼) observations (fill colored by latitude where darker colors represent higher latitudes) in addition to all observations (+).