Invasion and eradication of a competitively superior species in heterogeneous landscapes

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Serval ID
serval:BIB_C4AB36C5F998
Type
Article: article from journal or magazin.
Collection
Publications
Title
Invasion and eradication of a competitively superior species in heterogeneous landscapes
Journal
Ecological Modelling
Author(s)
Vuilleumier S., Buttler A., Perrin N., Yearsley J.M.
ISSN
0304-3800
Publication state
Published
Issued date
2011
Peer-reviewed
Oui
Volume
222
Number
3
Pages
398-406
Language
english
Abstract
The effect of heterogeneous environments upon the dynamics of invasion and the eradication or control of invasive species is poorly understood, although it is a major challenge for biodiversity conservation. Here, we first investigate how the probability and time for invasion are affected by spatial heterogeneity. Then, we study the effect of control program strategies (e.g. species specificity, spatial scale of action, detection and eradication efficiency) on the success and time of eradication. We find that heterogeneity increases both the invasion probability and the time to invasion. Heterogeneity also reduces the probability of eradication but does not change the time taken for successful eradication. We confirm that early detection of invasive species reduces the time until eradication, but we also demonstrate that this is true only if the local control action is sufficiently efficient. The criterion of removal efficiency is even more important for an eradication program than simply ensuring control effort when the invasive species is not abundant.
Keywords
Invasive species, Invasion, Eradication, Spatial heterogeneity, Metacommunity, Simulation model
Web of science
Open Access
Yes
Create date
28/09/2010 15:11
Last modification date
20/08/2019 16:40
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