marcher: Migration and Range Change Estimation in R
A set of tools for likelihood-based estimation, model selection and testing of two- and three-range shift and migration models for animal movement data as described in Gurarie et al. (2017) <doi:10.1111/1365-2656.12674>. Provided movement data (X, Y and Time), including irregularly sampled data, functions estimate the time, duration and location of one or two range shifts, as well as the ranging area and auto-correlation structure of the movment. Tests assess, for example, whether the shift was "significant", and whether a two-shift migration was a true return migration.
||R (≥ 3.3.0)
||stats, Matrix, graphics, grDevices, plyr, mvtnorm, RColorBrewer, minpack.lm, zoo, numDeriv, magrittr, scales
||knitr, rmarkdown, lubridate
||Eliezer Gurarie [aut, cre],
Farid Cheraghi [aut]
||Eliezer Gurarie <egurarie at umd.edu>
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