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1 December 2017 Potential Distribution of Drosophila suzukii (Diptera: Drosophilidae) in Relation to Alternate Hosts in Mexico
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Abstract

The spotted wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), is one of the most important pests of berry crop production in Mexico. The purpose of this research was to model the potential distribution of D. suzukii in the Mexico relative to 4 non-crop hosts using Maximum Entropy Ecological Niche Modeling. Spotted wing drosophila records were collected from a survey conducted in commercial blackberry plots and non-cultivated areas between 2013–2015. The data for the presence of non-crop hosts in the country and the bioclimatic variables used in the modeling were obtained from the Global Biodiversity Information Facility and WorldClim websites, respectively. For climatic variable selection, a principal component analysis on climatic variables was conducted prior to the MaxEnt modeling. The results demonstrate that the potential distribution of spotted wing drosophila was primarily in central Mexico. However, other suitable locations in the southeastern portion of the county were identified, which were not previously known. Likewise, the joint modeling depicted areas of coincidence between the spotted wing drosophila distribution and 4 alternating non-crop hosts commonly distributed in the berry-producing region, which includes the states of Michoacán, Jalisco, Guanajuato, and Mexico. This joint modeling of the potential distribution of spotted wing drosophila and non-crop hosts partly explains how the populations of the pest sustain themselves during seasons of low or no commercial berry production in Mexico.

Rigoberto Castro-Sosa, María del R. Castillo-Peralta, Alejandro I. Monterroso-Rivas, Jesús D. Gomez-Díaz, Erick Flores-González, and Ángel Rebollar-Alviter "Potential Distribution of Drosophila suzukii (Diptera: Drosophilidae) in Relation to Alternate Hosts in Mexico," Florida Entomologist 100(4), 787-794, (1 December 2017). https://doi.org/10.1653/024.100.0403
Published: 1 December 2017
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