Age, stages, and the role of generation time in matrix models

摘要: The earliest matrix models, proposed in the 1940s, consider age classes, and were later proved to be equivalent discrete time version of stable population theory. In this theory besides asymptotic growth rate, a very important characteristic is turnover individuals, measured various ways by generation time. Models considering stages, on contrary, do not take into account individuals seem largely preferable age-structured models for many populations which demographic characteristics are related biological stages (such seed, rosette, flowering plant, etc.) rather than per itself. These two kinds can embedded as particular cases stage or multistate models. Theses general used develop with advantages. This reviewed emphasis rules sensitivity analyses plays central role.