Potential Global Distribution of Daktulosphaira vitifoliae under Climate Change Based on MaxEnt.

Wei Ji,Jiufeng Wei,Gary Gao

doi:10.3390/insects12040347

Wei Ji, Jiufeng Wei + Show 1 more

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https://doi.org/10.3390/insects12040347

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Journal: Insects	Publication Date: Apr 13, 2021
Citations: 25	License type: CC BY 4.0

Affiliation: Shanxi Agricultural University, The Ohio State University

Abstract

Simple SummaryDaktulosphaira vitifoliae (Fitch) or grape phylloxera is a small, invasive, and sap-sucking insect widely distribution in most viticultural areas of the world. In the current study, the potential distribution ranges of the leaf-feeding population under current and future environmental conditions were simulated by MaxEnt software. The highly suitable ranges of D. vitifoliae mainly focus on Europe, East and North China, Japan, the Eastern USA, Uruguay, and the Southeast of South America under current climatic conditions. The highly suitable ranges were obviously increased under future climate conditions.Grape phylloxera, Daktulosphaira vitifoliae, is a small, invasive, sap-sucking pest that is widely present in most viticulture regions all over the world. It is originally from North America and feeds on grapevine roots and leaves. In the current study, the potential distribution area of the leaf-feeding population was investigated with MaxEnt based on population occurrence data under different environmental variables. Results suggested that under current climatic conditions, Europe, East and North China, Japan, the Eastern USA, Uruguay, and the Southeast of South America are highly suitable areas for the occurrence of phylloxera leaf populations. The results showed that isothermality and precipitation of coldest quarter were major factors which contribute more than 60% of the model under current climate conditions. Our results provide important information for governmental decision makers and famers to develop control and management strategies against D. vitifoliae, and can also be used as a reference for studies on other invasive pest.

Highlights

Daktulosphaira vitifoliae (Fitch) or grape phylloxera is a small, invasive, and sap-sucking insect widely distributed in most viticultural regions of the world [1,2]
Partial receiver operating characteristic (ROC) evaluation indicated that the potential distribution model of the D. vitifoliae is reliable and predictions were statistically significantly better than random (AUC at 0.05 is 0.846 and p < 0.001) (Figure S2)
The current research is the first study that has been undertaken to estimate the potential distribution of D. vitifoliae, an important pest of grape, under climate change conditions

Summary

Introduction

Daktulosphaira vitifoliae (Fitch) or grape phylloxera is a small, invasive, and sap-sucking insect widely distributed in most viticultural regions of the world [1,2]. Grape phylloxera has two different types, the radicicoles and the gallicoles, which affect roots and leaves, respectively [3]. Both types of root damage facilitate soil-borne pathogens to enter into the root cortex, resulting in growth reductions, yield loss or even death [4,5]. First instars or winged of this species can migrate by wind [3] This species is native to North America and grows in most viticultural countries worldwide [7]. Over the past 150 years, this pest has spread quickly to most wine grape growing regions of the word, including South America, New Zealand, Australia, South Africa, and China [7]. There is an urgent need to improve control and management methods for D. vitifoliae due to its continuous spread on a global scale

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