A null-model for significance testing of presence-only species distribution models
N. Raes (firstname.lastname@example.org), National Herbarium of the Netherlands, Leiden Univ. branch, Einsteinweg 2, NL-2300 RA, Leiden, the Netherlands – H. ter Steege, Inst. of Environmental Biology, Section Plant Ecology and Biodiversity and the National Herbarium of the Netherlands, Utrecht Univ. branch, Utrecht Univ., Sorbonnelaan 14, NL-3584 CA, Utrecht, the Netherlands.