article population dynamics Animals 6 Population Dynamics 6 animal 6 Ecosystem 4 biological model 4 ecosystem 4 human 4 nonhuman 4 Models, Biological 3 Predatory Behavior 3 biomass 3 female 3 male 3 predation 3 Biomass 2 Dispersal 2 Humans 2 adult 2 animal experiment 2 animal model 2 case report 2 clinical article 2 dispersal 2 ecological modeling 2 ecology 2 food chain 2 growth rate 2 population density 2