ranking global phytophthora threats by understanding pathways, niches and traits
TRANSCRIPT
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Beth Purse [email protected] Team: Dan Chapman, Louise Barwell, Ana Perez-Sierra,
Beatrice Henricot, Mariella Marzano, Michael Dunn
Work package 3Ranking global Phytophthora threats by
understanding pathways, niches and traits
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WP3 Team
Beatrice Henricot
PATHOGEN TRAITS, EPIDEMIOLOGY AND OCCURRENCE DATA
Mariella Marzano
Mike Dunn
SCOPING KNOWLEDGE GAPS TOURISM, TRADE &
BIOSECURITY
Beth Purse
Dan Chapman Louise Barwell
RISK MODELSOCCURRENCE
DATA
Ana Perez-Sierra
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Exotic pathogens introduced at an increasing rate
Proportion of pathogen records from French Plant Health Service that are exotic
• High impact, hard to predict• unknown ecology in invaded range
P. austrocedri on juniper
P. kernoviae on Rhododendron, beech, Vaccinium
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Knowledge gaps for horizon scanning and mitigation
From where?Which pathways?
Which species………………………….?
IMPACT
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Learning from past patterns in invasion and impacts
Agricultural trade flows into Europe
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Learning from past patterns in invasion and impacts
Disturbance? Hosts? Forestry systems? Water availability? Soil?
Global niche of Phytophthora cinnamomi – match past occurrence and past climate
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Link ecological traits to invasion patterns and impacts
Dispersal Climatic tolerance
Oospore
Chlamydospore
Persistence Host range
P. kernoviae on Rhododendron, beech, Vaccinium
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• 169 species (so far)• Complete for ~ 90 species
Phytophthora trait database
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Focal Phytophthora species to model• 10-15 species already present in the UK (validate approach)
• 25-30 species outside Europe that pose threats
• E.g. Species listed on the UK Plant Health Risk RegisterSpecies here already Species yet to arrive• P. alni P. acerina • P. austrocedri P. pinifolia• P. foliorum P. pluvialis • P. fragariae P. polonica• P. infestans• P. kernoviae• P. lateralis• P. pseudosyringae• P. ramorum• P. rubi• P. siskiyouensis
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Key outcomes
• Inform risk register & pest risk assessments• UK maps of risk areas per species: target mitigation• Understand invasion process and links to traits