Data and script for "Tracking data as an alternative to resighting data for inferring population ranges"

README file for data and code belonging to Linssen et al 2024 J Biogeo, Tracking data as an alternative to resighting data for inferring population ranges.<br>The RData file "Linssen_2024_JBiogeo_data.RData" contains all R objects needed to be able to run the code for the analysis:- rings: a data table with resighting records, used for winter range estimation. These data have been pre-processed and cleaned as described in the manuscript.- tracks: a data table with GPS tracking records, used for winter range estimation. These data have been pre-processed and cleaned as described in the manuscript.- repmeta: an table summarizing the model repeats, each one defined by the data type (resightings or tracks) and a specific number of birds used (and thereby also a specific number of records used). MCPs, KDEs and ESDMs are fitted for each model repeat (see manuscript).- sdm_covs: a rasterbrick with the covariate layers for the ESDMs.- rings_resightingrate: a data table with resighting records, used to empirically determine the resighting rate. Slightly different from the resighting records used for the range estimation, since only resightings of GPS-tracking neck collars that looked similar to normal, traditional neck collars, are used here.- tracks_resightingrate: a data table with GPS tracking records, used to empirically determine the resighting rate. Slightly different from the GPS tracking records used for the range estimation, since only the GPS-tracking neck collars that looked similar to normal, traditional neck collars, are used here.<br>The R file "Linssen_2024_JBiogeo_script.R" contains the code needed to run the analysis. The code can be ran from top to bottom.<br><br>---<br>"rings.csv", "rings_resightingrate.csv", "tracks.csv" and "tracks_resightingrate" are the .csv versions of the data tables in "Linssen_2024_JBiogeo_data.RData".These files are not needed to run the analysis (as the .RData file already includes them), but they are included to ensure long-term reproducibility across platforms.