“…a Petri dish) three cyclically competing strains of bacteria coexist for a long time, whereas in the well-mixed environment of shaken flasks two species go extinct quickly. Both theoretical (Reichenbach et al, 2007a(Reichenbach et al, ,b, 2008He et al, 2011;Lamouroux et al, 2012;Rulands et al, 2013;Szczesny et al, 2013Szczesny et al, , 2014Szolnoki et al, 2014;Dobramysl et al, 2018) and experimental (Siegert and Weijer, 1995;Igoshin et al, 2004) studies have revealed that spatio-temporal patterns, as for example propagating fronts or spiral waves, often accompany long-lasting coexistence between different species.…”