Population Dynamics with Threshold Effects Give Rise to a Diverse Family of Allee Effects.

ABSTRACT: The Allee effect describes populations that deviate from logistic growth models and arises in applications including ecology and cell biology. A common justification for incorporating Allee effects into population models is that the population in question has altered growth mechanisms at some critical density, often referred to as a threshold effect. Despite the ubiquitous nature of threshold effects arising in various biological applications, the explicit link between local threshold effects and global Allee effects has not been considered. In this work, we examine a continuum population model that incorporates threshold effects in the local growth mechanisms. We show that this model gives rise to a diverse family of Allee effects, and we provide a comprehensive analysis of which choices

SUBMITTER: Fadai NT 

PROVIDER: S-EPMC7292819 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature