title: Causality of the relationship between geographic distribution and species abundance.
authors.affiliation: Center for Macroecology, Evolution and Climate, Department of Biology, University of Copenhagen, 2100 Copenhagen Ø, Denmark. MKBORREGAARD@BIO.KU.DK
authors.forename: Michael Krabbe
authors.initials: MK
authors.lastname: Borregaard
authors.forename: Carsten
authors.initials: C
authors.lastname: Rahbek