Research overview: the nomadic phase of male lions

Between leaving their natal pride and acquiring a pride of their own, male lions pass through a nomadic phase during which they range widely without a fixed territory. This overview surveys the ecology of nomadic males, the duration of this phase, and how coalitions of nomads build the strength needed to challenge resident males. It reviews the risks and energetic costs of nomadic life and how success in eventually taking over a pride determines lifetime reproductive output. The review connects the nomadic phase to dispersal, coalition dynamics, and the intense competition for breeding tenure. Understanding this life stage is key to interpreting male reproductive success and the turnover of breeding males in lion populations.