plot_MABM_route: Plot MABM route and, if requested, bat calls detected along...

In adamdsmith/MABM: Functions for the USFWS Region 4's Mobile Acoustical Bat Monitoring (MABM) Program

Description

This function plots a MABM route (from a shapefile created with MABM_route) and, if requested (with the bats argument), bat calls (by species identification) detected along the route. To work properly this function requires an internet connection.

Usage

plot_MABM_route(bad_gps = 5, gps = NULL, plot_type = c("dynamic",
  "static"))

Arguments

bad_gps	integer indicating the absolute maximum number of seconds between a detected bat call and the nearest (in time) GPS location fix the user will consider as a "good" (usually interpreted "usable") georeference for a given bat call. All calls greater than this value will be recorded as having a "bad" georeference. The actual time difference between a bat detection and the closest GPS location is noted in the output under the column heading 'GPS_diff'; positive (negative) values indicate the detection occurred after (before) the associated GPS location.
gps	character string that gives user the option to specify the path (full or relative) to the GPS point shapefile rather than using a dialog box
plot_type	character choice between a 'dynamic' map using leaflet (default) or a 'static' map using ggmap and ggplot2; the latter two packages are installed if necessary

Details

With the bats argument, the user can specify whether all detected calls should be displayed or only those that meet (or do not meet) a user-specified criterion for a "good" georeferenced call. This criterion is specified as the number of seconds between a detected call and the closest (in time) GPS fix.

Species classifications can be turned off using spp = FALSE.

By default, every third bat detection (when plotted) is labeled with its associated time stamp and the route is shaded by time (minutes) elapsed from the first GPS fix to help visualize the route. These can be suppressed with labels = FALSE.

Value

an HTML widget object

adamdsmith/MABM documentation built on Aug. 22, 2019, 8:27 a.m.