Table 2.

Some empirical examples for unshared, partially shared and equally shared decision making in social animals.

decision making	object of group decision
unshared	forage patch choice in primates (King et al. 2008)
	travelling start in dolphins (Lusseau & Conradt in press)
at least partially shared	cohesive group movements in small groups of birds (Black 1988; Biro et al. 2006), carnivores (Gompper 1996), ungulates (Conradt & Roper 2003) and primates (Stewart & Harcourt 1994; Boinski & Campbell 1995; Byrne 2000; Milton 2000)
	cohesive group movements in large swarms of insects (Buhl et al. 2006), shoals of fishes (Ward et al. 2008), flocks of birds (Wallraff 1978; Simons 2004) or herds of ungulates (Prins 1996)
	group activity synchronization (Conradt 1998; Ruckstuhl 1998, 1999)
	nest-site choice in eusocial insects (Seeley & Buhrman 1999; Franks et al. 2009) and bats (Kerth et al. 2006)
	coordination of cooperative hunts (Courchamp et al. 2002)
	coordination of reproduction (Clutton-Brock 1998)
equally shared	group flight from potential predators