Allee effects and population spread in patchy landscapes
نویسندگان
چکیده
منابع مشابه
The Influence of Evolution on Population Spread through Patchy Landscapes.
Predicting the spatial advance of biological invasions and range-shifting native species under climate change requires understanding how evolutionary processes influence the velocity of spread. Although landscape heterogeneity and the finite nature of individuals are known to influence the ecological dynamics of spreading populations, their effect on evolutionary dynamics influencing spread is ...
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متن کاملPopulation dynamic consequences of allee effects.
We take a well-known dynamic model of an isolated, unstructured population and modify this to include a factor that allows for a reduction in fitness due to declining population sizes, often termed an Allee effect. Analysis of the behaviour of this model is carried out on two fronts - determining the equilibrium values and examining the stability of these equilibria. Our results point to the st...
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Discrete time single species models with overcompensating density dependence and an Allee effect due to predator satiation and mating limitation are investigated. The models exhibit four behaviors: persistence for all initial population densities, bistability in which a population persists for intermediate initial densities and otherwise goes extinct, extinction for all initial densities, and e...
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ژورنال
عنوان ژورنال: Journal of Biological Dynamics
سال: 2015
ISSN: 1751-3758,1751-3766
DOI: 10.1080/17513758.2015.1027309