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 (+).