Research overview: cub survival and population demography in lions

Cub survival is the demographic linchpin of lion populations and is highly variable. This overview synthesizes long-term studies showing that the majority of cubs die before independence from causes including starvation during prey scarcity, predation, abandonment, and infanticide following male takeovers. It reviews how pride size, mother condition, the stability of resident males, and food availability interact to determine recruitment, and how pulses of cub survival follow periods of coalition stability. The synthesis links these patterns to population growth rates and resilience, explaining why lion numbers can fluctuate sharply and why protecting stable male tenure matters for conservation. For long-term pride watchers it provides the demographic context for the heartbreaking and hopeful swings in cub numbers seen from one season to the next.