Figure 1

Overview maps. They show the distribution of species records of Turtle Doves for (a) PA (presence in blue and absence in yellow) and (b) PO (presence records are shown in dark red) data in Germany. (c) shows the positions of presence points recorded in PA and PO datasets. Presence points from PO data are given as light grey circles and the ones from PA data as yellow circles. Furthermore, (d) a map with Germany’s larger cities and landscapes for orientation in space is drawn according to https://www.diercke.de/content/deutschland-physische-karte-978-3-14-100800-5-19-2-190.