Extinction time in growth models subject to geometric catastrophes

Abstract Recently, different dispersion strategies in population models subject to geometric catastrophes have been considered as improve the chance of population’s survival. Such contrasted with strategy where there is no dispersion, comparing probabilities In this article, we contrast survival when extinction occurs almost surely, evaluating which prolongs life span. Our results allow one analyze what best based on parameters probability that each individual exposed catastrophe survives, growth rate colony, type and spatial restrictions.