Spatiotemporal analysis of distribution of pest and predator in corn crops
| Autor: | Marcello Neiva de Mello, Ivan Carlos Fernandes Martins, Elias Silva de Medeiros, Carlos Tadeu dos Santos Dias, Lourival Dias Campos |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Arquivos do Instituto Biológico v.88 2021 Arquivos do instituto biológico Instituto Biológico (IB) instacron:IBIO Arquivos do Instituto Biológico, Volume: 88, Article number: e00332020, Published: 29 NOV 2021 Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| Popis: | Crop pests have negative impacts on yield. This paper proposes a spatiotemporal geostatistical modeling to compare data of adult Syrphidae fly count and corn leaf aphid Rhopalosiphum maidis (Fitch, 1856) colonies in corn crops. The use of a geostatistical model that allows the space-time variation makes the approach more interesting because it is a more complete model. Multiple regression was used to model the trend component for the variable response adult Syrphidae fly count and corn leaf aphid colonies, with the coordinates serving as covariates and the spatiotemporal variations around the deviation are described by a random spacetime residual field. Finally, the prediction map obtained by kriging may be a biological indicator of possible corn leaf aphid colonies in the corn crop. It was possible to verify that the occurrence of the pest provided a significant increase in adult predators and seminatural habitats may favor populations of natural enemies. |
| Databáze: | OpenAIRE |
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