Files and links (1)
CC BY-NC-ND V4.0, Open Access
Journal article
Cost-effective portfolio allocation across quarantine, surveillance and eradication using info-gap theory
Journal of Applied Ecology, Vol.61(10), pp.2538-2548
2024
Abstract
1. Biosecurity activities primarily include pre-border and border quarantine, post-border surveillance and post-border eradication. Budget allocated to quarantine and surveillance activities ultimately influence the expenditure and success rate of eradication campaigns. Optimal portfolio allocation examined in previous research is susceptible to potential severe uncertainties existing in ecology and in the behaviour of invasive species itself. These uncertainties, together with a limited budget, make it difficult for decision makers to allocate the total management budget to each biosecurity activity in a robust manner.
2. Info-gap decision theory is applied to model the severe uncertainty in invasive species management, and robust optimize the total management cost.
This research shows that using a combination of pre-border and border quarantine (to reduce the incursion probability) and post-border surveillance (to enable early detection and rapid response), enables decision makers to be more robust to potential uncertainty. Further, it is reported that investment in quarantine that is more cost-effective should outweigh that in surveillance, in line with precautionary principle.
3. Increasing the estimated population threshold for surveillance detection also gains more robustness.
4. Synthesis and applications: Portfolio allocation options developed in this research provide decision makers with a way to manage the invasive species spatially, cost-effectively and confidently by allocating the total management budget in a robust manner. The methods outlined in this research can not only be applied to invasive species, but also the conservation of endangered species that are constrained by severe uncertainty in ecological modelling and limited resources.
Details
- Title
- Cost-effective portfolio allocation across quarantine, surveillance and eradication using info-gap theory
- Authors/Creators
- Yang LiuPenghao Wang - Murdoch University, Centre for Crop and Food InnovationGrey Coupland - Murdoch University, Centre for Biosecurity and One HealthMelissa Thomas - Murdoch University, Centre for Biosecurity and One HealthDan Zheng - Qingdao Agricultural UniversitySimon McKirdy - Murdoch University, Centre for Biosecurity and One Health
- Publication Details
- Journal of Applied Ecology, Vol.61(10), pp.2538-2548
- Publisher
- John Wiley & Sons Ltd on behalf of British Ecological Society.
- Identifiers
- 991005692863207891
- Copyright
- © 2024 The Author(s).
- Murdoch Affiliation
- Food Futures Institute; Harry Butler Institute; Centre for Crop and Food Innovation; Murdoch University; Centre for Biosecurity and One Health; School of Medical, Molecular and Forensic Sciences
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
6 File views/ downloads
83 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.40 Forestry
- 3.40.86 Plant Communities
- Web Of Science research areas
- Biodiversity Conservation
- Ecology
- ESI research areas
- Environment/Ecology