A Theoretical Approach to Analyze the Parametric Influence on Spatial Patterns of Spodoptera frugiperda (JE Smith) (Lepidoptera: Noctuidae) Populations

Autor(es)

Garcia, A. G. ; Godoy, W. A. C.

• Tipo de documento: Artigo Científico
• Fonte: Neotropical Entomology; v. 46, n. 3, p. 283-288, JUN 2017.
• Citações Web of Science: 2

Resumo

Studies of the influence of biological parameters on the spatial distribution of lepidopteran insects can provide useful information for managing agricultural pests, since the larvae of many species cause serious impacts on crops. Computational models to simulate the spatial dynamics of insect populations are increasingly used, because of their efficiency in representing insect movement. In this study, we used a cellular automata model to explore different patterns of population distribution of Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), when the values of two biological parameters that are able to influence the spatial pattern (larval viability and adult longevity) are varied. We mapped the spatial patterns observed as the parameters varied. Additionally, by using population data for S. frugiperda obtained in different hosts under laboratory conditions, we were able to describe the expected spatial patterns occurring in corn, cotton, millet, and soybean crops based on the parameters varied. The results are discussed from the perspective of insect ecology and pest management. We concluded that computational approaches can be important tools to study the relationship between the biological parameters and spatial distributions of lepidopteran insect pests. (AU)

• Processo FAPESP: 14/16609-7 - Abordagem multi e interdisciplinar para compreender padrões espaço-temporais de insetos praga e delinear paisagens para manejo sustentável de pragas em sistemas agrícolas tropicais
• Beneficiário: Wesley Augusto Conde Godoy
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 15/10640-2 - Abordagem matemática para a dinâmica espaço-temporal de populações de pragas em cultivos Bt e o estabelecimento de refúgio
• Beneficiário: Adriano Gomes Garcia
• Modalidade de apoio: Bolsas no Brasil - Doutorado