Some small populations are characterized by periods of exponential growth interrupted by sudden drops. These drops can be linked to the population size itself, for example, through overexploitation of local resources. The long-term population extinction risk and the time to extinction for such a...

In England in the Middle Ages, inheritance data were recorded of tenants who owned land from the Crown. Male adult mortality is estimated from these data. A tenant was allowed to sell his land. Only if he still owned land at death, his age at death was observed; so death was right censored by sell...