Modelling the potential distribution of the invasive tomato red spider mite, <Emphasis Type="Italic">Tetranychus evansi</Emphasis> (Acari: Tetranychidae) |
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Authors: | Alain Migeon Francisco Ferragut Lucía Adriana Escudero-Colomar Komi Fiaboe Markus Knapp Gilberto J de Moraes Eddie Ueckermann Maria Navajas |
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Institution: | 1.INRA, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro),Montferrier-sur-Lez cedex,France;2.Instituto Agroforestal Mediterráneo,Universidad Politécnica,Valencia,Spain;3.IRTA, Estació Experimental Agricola Mas Badia,Girona,Spain;4.IITA (International Institute of Tropical Agriculture),Kampala,Uganda;5.R and D Entomology,Koppert B.V.,Berkel en Rodenrijs,The Netherlands;6.Departamento de Entomologia,Fitopatologia e Zoologia Agricola, ESALQ-USP,Piracicaba,Brazil;7.ARC-Plant Protection Research Institute,Pretoria,South Africa |
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Abstract: | Predicting the potential geographical distribution of a species is particularly important for pests with strong invasive abilities.
Tetranychus evansi Baker & Pritchard, possibly native to South America, is a spider mite pest of solanaceous crops. This mite is considered
an invasive species in Africa and Europe. A CLIMEX model was developed to predict its global distribution. The model results
fitted the known records of T. evansi except for some records in dry locations. Dryness as well as excess moisture stresses play important roles in limiting the
spread of the mite in the tropics. In North America and Eurasia its potential distribution appears to be essentially limited
by cold stress. Detailed potential distribution maps are provided for T. evansi in the Mediterranean Basin and in Japan. These two regions correspond to climatic borders for the species. Mite establishment
in these areas can be explained by their relatively mild winters. The Mediterranean region is also the main area where tomato
is grown in open fields in Europe and where the pest represents a threat. According to the model, the whole Mediterranean
region has the potential to be extensively colonized by the mite. Wide expansion of the mite to new areas in Africa is also
predicted. Agricultural issues highlighted by the modelled distribution of the pest are discussed.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. |
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Keywords: | Biological invasions CLIMEX Climate modelling Predicting species distribution Dispersal Tetranychus evansi |
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