caa a22 4500 463175158 CHVBK 20180406164823.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10336-007-0129-1 doi (NATIONALLICENCE)springer-10.1007/s10336-007-0129-1 Geographic patterns in the distribution of Palearctic songbirds [Elektronische Daten] [Cees Roselaar, Ronald Sluys, Mansour Aliabadian, Peter Mekenkamp] A database was created of digitized equal area distribution maps of 3,036 phylogenetic species of Palearctic songbirds. Biogeographic patterns are reported for two data sets: (1) including all passeriform bird species reported as breeding within the boundaries of our study map, (2) passeriform species restricted in their distribution to our study region, thus excluding the partly extra-limital taxa. With respect to the data set excluding partly extra-limital taxa, the average range size is 238 grid cells (grid cell area: 4,062km2). Analysis of the geographic distribution of species richness for the full data set showed several hotspot regions, mostly located in mountainous areas. The index of range-size rarity identified similar hotspot regions as that for species richness, albeit that the range-size rarity de-emphasized the central Siberian hotspot. Range-size rarity hotspots that are not evident on the measure of species richness concern a great number of islands. Much more prominent on the index of range-size rarity are the Atlas Mountains of northern Africa, the Jabal al Akhdar region in NE Libya, and the eastern border of the Mediterranean. Restricting the analysis of geographic variation to the 25% of the species with smallest ranges resulted in a greatly simplified pattern of hotspots. Dt. Ornithologen-Gesellschaft e.V., 2007 Passeriformes nationallicence Palearctic nationallicence Biogeography nationallicence Spatial analysis nationallicence Hotspots nationallicence Roselaar Cees Institute for Biodiversity and Ecosystem Dynamics, Zoological Museum, University of Amsterdam, P.O. Box 94766, 1090 GT, Amsterdam, The Netherlands aut Sluys Ronald Institute for Biodiversity and Ecosystem Dynamics, Zoological Museum, University of Amsterdam, P.O. Box 94766, 1090 GT, Amsterdam, The Netherlands aut Aliabadian Mansour Institute for Biodiversity and Ecosystem Dynamics, Zoological Museum, University of Amsterdam, P.O. Box 94766, 1090 GT, Amsterdam, The Netherlands aut Mekenkamp Peter Cartography, Faculty of Geosciences, Utrecht University, P.O. Box 80115, 3508 TC, Utrecht, The Netherlands aut Journal of Ornithology Springer-Verlag 148/3(2007-07-01), 271-280 0021-8375 148:3<271 2007 148 10336 https://doi.org/10.1007/s10336-007-0129-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10336-007-0129-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Roselaar Cees Institute for Biodiversity and Ecosystem Dynamics, Zoological Museum, University of Amsterdam, P.O. Box 94766, 1090 GT, Amsterdam, The Netherlands aut NATIONALLICENCE 700 1- Sluys Ronald Institute for Biodiversity and Ecosystem Dynamics, Zoological Museum, University of Amsterdam, P.O. Box 94766, 1090 GT, Amsterdam, The Netherlands aut NATIONALLICENCE 700 1- Aliabadian Mansour Institute for Biodiversity and Ecosystem Dynamics, Zoological Museum, University of Amsterdam, P.O. Box 94766, 1090 GT, Amsterdam, The Netherlands aut NATIONALLICENCE 700 1- Mekenkamp Peter Cartography, Faculty of Geosciences, Utrecht University, P.O. Box 80115, 3508 TC, Utrecht, The Netherlands aut NATIONALLICENCE 773 0- Journal of Ornithology Springer-Verlag 148/3(2007-07-01), 271-280 0021-8375 148:3<271 2007 148 10336 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer