Nakagawa, Shinichi Abteilung Kempenaers, Seewiesen, Max Planck Institut für Ornithologie, Max Planck Society;
Nakagawa, S., & Schielzeth, H. (2013). A general and simple method for obtaining R2 from generalized linear mixed-effects models. Methods in Ecology and Evolution, 4(2), 133-142. doi:10.1111/j.2041-210x.2012.00261.x.