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- Title
Remote Sensing to Detect Nests of the Leaf-Cutting Ant Atta sexdens (Hymenoptera: Formicidae) in Teak Plantations.
- Authors
Santos, Isabel Carolina de Lima; Santos, Alexandre dos; Oumar, Zakariyyaa; Soares, Marcus Alvarenga; Silva, Július César Cerqueira; Zanetti, Ronald; Zanuncio, José Cola
- Abstract
Leaf-cutting ants of the genus Atta are an important insect pest in forest plantations in many countries of South America. The objective of this work was to evaluate the potential for using Landsat-8 images, with medium spatial resolution and distributed free of charge, to detect leaf-cutting ant nests in Tectona grandis plantations in Brazil, using partial least squares discriminant analysis (PLS-DA). The regression model adjusted by PLS-DA selected three principal components with a cross-validation error of 0.275 to map and predict the presence of leaf-cutting ant nests in these plantations. The most important bands and vegetation indices were selected using the main variables in the projection (VIP) and predicted pixels with the presence or absence of leaf-cutting ant nests with an accuracy of 72.3% on an independent validation data set. The study indicates that Landsat-8 OLI images have the potential to detect and map leaf-cutting ant nests in T. grandis plantations.
- Subjects
SOUTH America; BRAZIL; LEAF-cutting ants; ANTS; REMOTE sensing; HYMENOPTERA; PLANTATIONS; TREE farms; INSECT pollinators
- Publication
Remote Sensing, 2019, Vol 11, Issue 14, p1641
- ISSN
2072-4292
- Publication type
Article
- DOI
10.3390/rs11141641