Trait-mediated filtering of Phytophthora pathogen invasions through global horticultural trade networks

Louise J Barwell; Bethan V Purse; Sarah Green; Giles Hardy; Peter Scott; Nari Williams; David E L Cooke; Ana Perez-Sierra; Treena I Burgess; Daniel Chapman

doi:10.1111/nph.70587

Back

Trait-mediated filtering of Phytophthora pathogen invasions through global horticultural trade networks

Journal article

Open access

Peer reviewed

Trait-mediated filtering of Phytophthora pathogen invasions through global horticultural trade networks

Louise J Barwell, Bethan V Purse, Sarah Green, Giles Hardy, Peter Scott, Nari Williams, David E L Cooke, Ana Perez-Sierra, Treena I Burgess and Daniel Chapman

The New phytologist, Early View

2025

DOI: https://doi.org/10.1111/nph.70587

PMID: 40968726

Files and links (1)

pdf

trade networks3.01 MBDownload View

CC BY V4.0, Open Access

Abstract

risk assessment

traits

plant health

prioritisation

Phytophthora

surveillance

biological invasions

Estimates of invasion risk can support prioritisation of future threats from non-native species. Greater risk of invasion is expected when species occur in connected source regions and possess traits promoting successful transport, introduction or establishment. We compile a global database of first reports of Phytophthora de Bary species, a diverse oomycete genus attacking a broad range of plant hosts across multiple regions, sectors and ecosystem types with increasing frequency. Using Bayesian hierarchical zero-inflated models, we model global patterns of new detections since 2005 among 109 Phytophthora pathogens across 56 countries with at least two known Phytophthora species reported before 2005. We estimate the effects of trade connectivity, climate matching, national surveillance and pathogen traits on the probability of a new detection. We find that 69 (38%) Phytophthora species were either unknown or had no known source regions before 2005 and were therefore excluded from our analysis. Our study shows that invasion risk is increased for pathogens with broader thermal tolerance and the ability to produce survival structures linked to stress tolerance and asymptomatic infections. This knowledge can be used to enhance national horizon scanning and risk-based surveillance activities to better manage risks to plant health from emerging pathogens.

Details

Title: Trait-mediated filtering of Phytophthora pathogen invasions through global horticultural trade networks
Authors/Creators: Louise J Barwell - UK Centre for Ecology & Hydrology
Bethan V Purse - UK Centre for Ecology & Hydrology
Sarah Green - Forest Research
Giles Hardy - Murdoch University
Peter Scott - Murdoch University
Nari Williams - Plant & Food Research
David E L Cooke - James Hutton Institute
Ana Perez-Sierra - Forest Research
Treena I Burgess - Murdoch University
Daniel Chapman - University of Stirling
Publication Details: The New phytologist, Early View
Publisher: This article is published with the permission of the Controller of HMSO and the King's Printer for Scotland.; HOBOKEN
Number of pages: 18
Grant note: Economic and Social Research Council Forestry Commission Department of Environment Food and Rural Affairs NE/V019813/1 / Natural Environment Research Council Scottish Government under the Tree Health and Plant Biosecurity Initiative BB/N023463/1 / Biotechnology and Biological Sciences Research Council
Identifiers: 991005813643507891
Murdoch Affiliation: Harry Butler Institute; Centre for Terrestrial Ecosystem Science and Sustainability
Language: English
Resource Type: Journal article

Metrics

3 File views/ downloads

4 Record Views

3 Times Cited - Web of Science

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; 3.97 Plant Pathology; 3.97.1439 Phytophthora Management
Web Of Science research areas: Plant Sciences
ESI research areas: Plant & Animal Science