DOI: 10.5061/dryad.gf1vhhmtq
title: Data from: Eco-evolutionary drivers of avian migratory connectivity

description: Migratory connectivity, reflecting the extent by which migrants tend to
 maintain their reciprocal positions in seasonal ranges, can assist in the
 conservation and management of mobile species, yet relevant drivers remain
 unclear. Taking advantage of an exceptionally large (~150,000 individuals,
 83 species) and more-than-a-century-long dataset of bird ringing
 encounters, we investigated eco-evolutionary drivers of migratory
 connectivity in both short- and long-distance Afro-Palearctic migratory
 bird taxa. Connectivity was strongly associated with geographical proxies
 of migration costs and was weakly influenced by biological traits and
 phylogeny, suggesting the evolutionary lability of migratory behaviour.
 The large intraspecific variability in avian migration strategies, through
 which most species geographically split into distinct migratory
 populations, explained why most of them were significantly connected. By
 unravelling key determinants of migratory connectivity, our study improves
 knowledge about the resilience of avian migrants to ecological
 perturbations, providing a critical tool to inform transboundary
 conservation and management strategies at the population level.
description: The dataset reports the strength of migratory connectivity for 83
 bird species assessed according to Ambrosini et al. (2019 - J Theor Biol)
 by filtering &gt; 12 million ringing encounters obtained from the
 EURING databank https://euring.org) and
 spanning over more than one century (1900–2019). Other data files are
 necessary for the analyses or for figures.
description: # Data from: Eco-evolutionary drivers of avian migratory connectivity ##
 CONTENTS The file
 "Phylogenetic_comparative_analysis_-_Ecol_Lett.R" is the code to
 reproduce the results of the paper. The file "Figure_1.R" is the
 code to reproduce Figure 1. The file "Figure_2.R" is the code to
 reproduce Figure 2. The file "Figure_3.R" is the code to
 reproduce Figure 3. The file
 "Migratory_connectivity_analysis_-_Ecol_Lett.R" is the code to
 simulate the migratory connectivity analysis. The file
 "MC_functions_Ecol_Lett.R" includes functions to run the code in
 the files "Migratory connectivity analysis - Ecol Lett.R". The
 file "Dataset.csv" is semicolon-delimited with a comma decimal.
 This file and the files "MRC50_83species.nex" and
 "MRC50_land.nex" include data to reproduce the results of the
 paper and both Figure 2 and Figure 3. The file
 "Dataset_legend.xlsx" contains the legend for
 "Dataset.csv". The folder "Files_for_figure_1.zip"
 contains all the files to reproduce Figure 1. Specifically: *
 "Bucefala clangula-bree.csv", "Cygnus
 cygnus-bree.csv", "Hirundo rustica-bree.csv", "Turdus
 iliacus-bree.csv" are semicolon delimited files with a comma decimal
 reporting lat: latitude. lon: longitude, ringID: hypothetical ring number,
 Cl: number of the cluster of the individual, Period: factor indication
 breeding (BREE) or wintering (WINT) period for two hypothetical
 individuals of each species. * "Bucefala clangula-wint.csv",
 "Cygnus cygnus-wint.csv", "Hirundo rustica-wint.csv",
 "Turdus iliacus-wint.csv" are semicolon delimited files with a
 comma decimal reporting lat: latitude. lon: longitude, ringID:
 hypothetical ring number, Cl: number of the cluster of the individual,
 Period: factor indication breeding (BREE) or wintering (WINT) period for
 two hypothetical individuals of each species. *
 "bucephala_contour_breeCl1_sf.dbf",
 "bucephala_contour_breeCl1_sf.prj",
 "bucephala_contour_breeCl1_sf.shp",
 "bucephala_contour_breeCl1_sf.shx",
 "bucephala_contour_wintCl1_sf.dbf",
 "bucephala_contour_wintCl1_sf.prj",
 "bucephala_contour_wintCl1_sf.shp",
 "bucephala_contour_wintCl1_sf.shx": files in the ESRI Shapefile
 format necessary to plot the polygons representing the breeding and
 wintering clusters of *Bucephala clangula*. *
 "cygnus_contour_breeCl1_sf.dbf",
 "cygnus_contour_breeCl1_sf.prj",
 "cygnus_contour_breeCl1_sf.shp",
 "cygnus_contour_breeCl1_sf.shx",
 "cygnus_contour_breeCl2_sf.dbf",
 "cygnus_contour_breeCl2_sf.prj",
 "cygnus_contour_breeCl2_sf.shp",
 "cygnus_contour_breeCl2_sf.shx",
 "cygnus_contour_wintCl1_sf.dbf",
 "cygnus_contour_wintCl1_sf.prj",
 "cygnus_contour_wintCl1_sf.shp",
 "cygnus_contour_wintCl1_sf.shx",
 "cygnus_contour_wintCl2_sf.dbf",
 "cygnus_contour_wintCl2_sf.prj",
 "cygnus_contour_wintCl2_sf.shp",
 "cygnus_contour_wintCl2_sf.shx": files in the ESRI Shapefile
 format necessary to plot the polygons representing the breeding and
 wintering clusters of *Cygnus cygnus*. *
 "hirundo_contour_breeCl1_sf.dbf",
 "hirundo_contour_breeCl1_sf.prj",
 "hirundo_contour_breeCl1_sf.shp",
 "hirundo_contour_breeCl1_sf.shx",
 "hirundo_contour_breeCl2_sf.dbf",
 "hirundo_contour_breeCl2_sf.prj",
 "hirundo_contour_breeCl2_sf.shp",
 "hirundo_contour_breeCl2_sf.shx",
 "hirundo_contour_wintCl1_sf.dbf",
 "hirundo_contour_wintCl1_sf.prj",
 "hirundo_contour_wintCl1_sf.shp",
 "hirundo_contour_wintCl1_sf.shx",
 "hirundo_contour_wintCl2_sf.dbf",
 "hirundo_contour_wintCl2_sf.prj",
 "hirundo_contour_wintCl2_sf.shp",
 "hirundo_contour_wintCl2_sf.shx": files in the ESRI Shapefile
 format necessary to plot the polygons representing the breeding and
 wintering clusters of *Hirundo rustica.* *
 "turdus_contour_breeCl1_sf.dbf",
 "turdus_contour_breeCl1_sf.prj",
 "turdus_contour_breeCl1_sf.shp",
 "turdus_contour_breeCl1_sf.shx"
 "turdus_contour_wintCl1_sf.dbf",
 "turdus_contour_wintCl1_sf.prj",
 "turdus_contour_wintCl1_sf.shp",
 "turdus_contour_wintCl1_sf.shx": files in the ESRI Shapefile
 format necessary to plot the polygons representing the breeding and
 wintering clusters of *Turdus iliacus.*