(2013) Correlations in species richness between taxa depend on habitat, scale and landscape contextJohan Ekroos, Mikko Kuussaari, Juha Tiainen, Janne Heliölä, Tuomas Seimola, Juha Helenius .
Ecological Indicators 34: 528535. http://www.sciencedirect.com/science/article/pii/S1470160X1300246X