thumbnail

Establishing a beachhead: A stochastic population model with an Allee effect applied to species invasion

Theoretical Population Biology

By:
, , and
DOI: 10.1016/j.tpb.2006.12.006

Links

Abstract

We formulated a spatially explicit stochastic population model with an Allee effect in order to explore how invasive species may become established. In our model, we varied the degree of migration between local populations and used an Allee effect with variable birth and death rates. Because of the stochastic component, population sizes below the Allee effect threshold may still have a positive probability for successful invasion. The larger the network of populations, the greater the probability of an invasion occurring when initial population sizes are close to or above the Allee threshold. Furthermore, if migration rates are low, one or more than one patch may be successfully invaded, while if migration rates are high all patches are invaded. ?? 2007 Elsevier Inc. All rights reserved.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Establishing a beachhead: A stochastic population model with an Allee effect applied to species invasion
Series title:
Theoretical Population Biology
DOI:
10.1016/j.tpb.2006.12.006
Volume
71
Issue:
3
Year Published:
2007
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Theoretical Population Biology
First page:
290
Last page:
300