This package containing tools for studying Tuktu (caribou) movement ecology and spatial patterns. To install the current version of this package in R:
devtools::install_github("ocouriot/TuktuTools", build_vignettes = TRUE)
To date, this package contains sets of functions that prep and filter movement data:
process_moveNWT
- process data from Movebank;removeoutliers
- flags fixes considered as outliers;prepData
- prepares and filters data to a specific period of time and/or a minimum number of fixes per day;scan_tracks
- visualizes individual paths through time
The package also contains functions that analyze spatial patterns, including:
getSpeed
- computes individual movement rates, displacements, speeds;getDailyMean
- estimates individual mean daily location (i.e., the mean x and y coordinates of all the daily locations for a given individual);getLoCoH
andgetKernelUD
- estimate ranging areas with Local Convex Hulls (LoCoH) or Kernel Utilization Distributions (KUD));getPairwiseDistance
andgetPairwiseOverlap
- estimate daily pairwise distance or pairwise overlap between pairs of individuals;estimateCalving
- estimate calving status (non-calving or calving, calving with survival or calving with calf death), calving timing, and calving location for given females, using movement rate;estimateMigration_stan
- estimates population-level migration timing using STAN
The package contains the following data:
caribou
- anonymized movement data for 4 individual Barren-ground caribou;simulated_migrations
- simulated movement tracks for 18 individuals
Finally, the package contains a vignette (the first in a series), on estimating parturition dates or by running the following code:
require(TuktuTools)
vignette("estimating_parturition")