Spatially explicit ecological modeling improves empirical characterization of plant pathogen dispersal

Abstract Dispersal is a key ecological process, but it remains difficult to measure. By recording numbers of dispersed individuals at different distances from the source, one acquires a dispersal gradient. Dispersal gradients contain information on dispersal, but they are influenced by the spatial e...

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Main Authors: Petteri Karisto, Frédéric Suffert, Alexey Mikaberidze
Format: Article
Language:English
Published: Wiley 2023-04-01
Series:Plant-Environment Interactions
Subjects:
Online Access:https://doi.org/10.1002/pei3.10104
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author Petteri Karisto
Frédéric Suffert
Alexey Mikaberidze
author_facet Petteri Karisto
Frédéric Suffert
Alexey Mikaberidze
author_sort Petteri Karisto
collection DOAJ
description Abstract Dispersal is a key ecological process, but it remains difficult to measure. By recording numbers of dispersed individuals at different distances from the source, one acquires a dispersal gradient. Dispersal gradients contain information on dispersal, but they are influenced by the spatial extent of the source. How can we separate the two contributions to extract knowledge about dispersal? One could use a small, point‐like source for which a dispersal gradient represents a dispersal kernel, which quantifies the probability of an individual dispersal event from a source to a destination. However, the validity of this approximation cannot be established before conducting measurements. This represents a key challenge hindering progress in characterization of dispersal. To overcome it, we formulated a theory that incorporates the spatial extent of sources to estimate dispersal kernels from dispersal gradients. Using this theory, we re‐analyzed published dispersal gradients for three major plant pathogens. We demonstrated that the three pathogens disperse over substantially shorter distances compared to conventional estimates. This method will allow the researchers to re‐analyze a vast number of existing dispersal gradients to improve our knowledge about dispersal. The improved knowledge has potential to advance our understanding of species' range expansions and shifts, and inform management of weeds and diseases in crops.
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spelling doaj.art-637f21fcca7d4c79b2d65f048b7d8daa2023-04-27T07:40:06ZengWileyPlant-Environment Interactions2575-62652023-04-0142869610.1002/pei3.10104Spatially explicit ecological modeling improves empirical characterization of plant pathogen dispersalPetteri Karisto0Frédéric Suffert1Alexey Mikaberidze2Plant Pathology Group, Institute of Integrative Biology ETH Zurich Zurich SwitzerlandUniversité Paris‐Saclay, INRAE, AgroParisTech, UMR BIOGER 78850 Thiverval‐Grignon FrancePlant Pathology Group, Institute of Integrative Biology ETH Zurich Zurich SwitzerlandAbstract Dispersal is a key ecological process, but it remains difficult to measure. By recording numbers of dispersed individuals at different distances from the source, one acquires a dispersal gradient. Dispersal gradients contain information on dispersal, but they are influenced by the spatial extent of the source. How can we separate the two contributions to extract knowledge about dispersal? One could use a small, point‐like source for which a dispersal gradient represents a dispersal kernel, which quantifies the probability of an individual dispersal event from a source to a destination. However, the validity of this approximation cannot be established before conducting measurements. This represents a key challenge hindering progress in characterization of dispersal. To overcome it, we formulated a theory that incorporates the spatial extent of sources to estimate dispersal kernels from dispersal gradients. Using this theory, we re‐analyzed published dispersal gradients for three major plant pathogens. We demonstrated that the three pathogens disperse over substantially shorter distances compared to conventional estimates. This method will allow the researchers to re‐analyze a vast number of existing dispersal gradients to improve our knowledge about dispersal. The improved knowledge has potential to advance our understanding of species' range expansions and shifts, and inform management of weeds and diseases in crops.https://doi.org/10.1002/pei3.10104dispersal ecologydispersal gradientdispersal kerneldispersal theoryexperimental designmathematical modeling
spellingShingle Petteri Karisto
Frédéric Suffert
Alexey Mikaberidze
Spatially explicit ecological modeling improves empirical characterization of plant pathogen dispersal
Plant-Environment Interactions
dispersal ecology
dispersal gradient
dispersal kernel
dispersal theory
experimental design
mathematical modeling
title Spatially explicit ecological modeling improves empirical characterization of plant pathogen dispersal
title_full Spatially explicit ecological modeling improves empirical characterization of plant pathogen dispersal
title_fullStr Spatially explicit ecological modeling improves empirical characterization of plant pathogen dispersal
title_full_unstemmed Spatially explicit ecological modeling improves empirical characterization of plant pathogen dispersal
title_short Spatially explicit ecological modeling improves empirical characterization of plant pathogen dispersal
title_sort spatially explicit ecological modeling improves empirical characterization of plant pathogen dispersal
topic dispersal ecology
dispersal gradient
dispersal kernel
dispersal theory
experimental design
mathematical modeling
url https://doi.org/10.1002/pei3.10104
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AT fredericsuffert spatiallyexplicitecologicalmodelingimprovesempiricalcharacterizationofplantpathogendispersal
AT alexeymikaberidze spatiallyexplicitecologicalmodelingimprovesempiricalcharacterizationofplantpathogendispersal