Reconstruct Animal Paths from Solar Geolocation Loggers Data
Function to write down twilights annotated in BAStag package data in s...
find unknown calibration location
extracts times of arrival and departure to/from spatial extent
Summary of estimated locations for Movebank
Function to write down twilights annotated in GeoLight package data in...
Estimate distances moved between twilights
read TAGS formatted data
Creates a calibration object, further used for calculation of coordina...
makes spatial grid
combines data, calibration and sets up priors
plots result over map
plot likelihood surface over map
plots result by longitude and latitude
plots log of observed versus expected slope by time for a known locati...
plots resulting track over map with uncertainty shown by space utilisa...
Run Particle Filter
find potential stationary periods and estimates their location and mov...
Function to write down twilights annotated in twGeos package data in s...
Spatio-temporal locations of an animal are computed from annotated data with a hidden Markov model via particle filter algorithm. The package is relatively robust to varying degrees of shading. The hidden Markov model is described in Movement Ecology - Rakhimberdiev et al. (2015) <doi:10.1186/s40462-015-0062-5>, general package description is in the Methods in Ecology and Evolution - Rakhimberdiev et al. (2017) <doi:10.1111/2041-210X.12765> and package accuracy assessed in the Journal of Avian Biology - Rakhimberdiev et al. (2016) <doi:10.1111/jav.00891>.