The function plots the spread of SLF over time, showing the recorded population density detected by the survey effort
map_yearly(year_type = "biological", color_palette = "Reds", ncols = 2)
String defining whether to use the biological year definition ("biological", May 1st - April 30th, default) or the calendar year when faceting the figure ("calendar").
Uses color palettes defined in scale_color_brewer. Defaults to "Reds".
Number of columns for the facet plotting.
A faceted plot of the spread of SLF over time in the US
## Examples