Handling overheads: optimal multi-method invasive species control

Baker, Christopher M., Armsworth, Paul R. and Lenhart, Suzanne M. (2017) Handling overheads: optimal multi-method invasive species control. Theoretical Ecology, 10 4: 493-501. doi:10.1007/s12080-017-0344-1


Author Baker, Christopher M.
Armsworth, Paul R.
Lenhart, Suzanne M.
Title Handling overheads: optimal multi-method invasive species control
Journal name Theoretical Ecology   Check publisher's open access policy
ISSN 1874-1738
1874-1746
Publication date 2017-08-15
Year available 2017
Sub-type Article (original research)
DOI 10.1007/s12080-017-0344-1
Open Access Status Not yet assessed
Volume 10
Issue 4
Start page 493
End page 501
Total pages 9
Place of publication Dordrecht, Netherlands
Publisher Springer Netherlands
Language eng
Subject 2303 Ecology
2302 Ecological Modelling
Abstract Invasive species are a pervasive problem worldwide and considerable resources are directed towards their control. While there are many aspects to invasive species management, deciding how to allocate resources effectively when removing them is critical. There are often multiple control methods available, each with different characteristics. For example aerial baiting has very high overhead costs, while animal trapping incurs a handling time (the trap must be reset after each capture). Here, we examine a particular challenge that managers commonly face when designing eradication programmes-specifically what type of control measure to rely on at different times during the eradication effort? We solve for optimal resource allocation strategies when there are two control methods available and one has overhead costs and the other has a handling time. We find that, if both controls are being used, the control with overhead costs should be used only at the beginning of a project, the other control should be used in the latter part of the project, and that there is generally an overlap where both controls are used. This contrasts with the strategies employed in many eradication projects, where ground control does not begin until aerial baiting has ceased.
Keyword Structured Decision-Making
Biosecurity Resources
Management
Eradication
Surveillance
Island
Uncertainty
Predators
Economics
Wildlife
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID DBI-1300426
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
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Created: Wed, 13 Sep 2017, 16:44:35 EST by Christopher Baker on behalf of School of Biological Sciences