Landscape configuration modulates the presence of leaf-cutting ants in eucalypt plantations

Abstract Pest responses to landscape complexity show variable patterns globally, primarily related to species traits and specific managed habitats. Leaf-cutting ants (LCAs) are native insects and important pests of plantation forests in South America. We evaluated the responses of LCA nests in young...

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Main Authors: Pablo Cavigliasso, Ezequiel González, Abel Scherf, José Villacide
Format: Article
Language:English
Published: Nature Portfolio 2023-08-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-40426-9
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author Pablo Cavigliasso
Ezequiel González
Abel Scherf
José Villacide
author_facet Pablo Cavigliasso
Ezequiel González
Abel Scherf
José Villacide
author_sort Pablo Cavigliasso
collection DOAJ
description Abstract Pest responses to landscape complexity show variable patterns globally, primarily related to species traits and specific managed habitats. Leaf-cutting ants (LCAs) are native insects and important pests of plantation forests in South America. We evaluated the responses of LCA nests in young Eucalyptus plantations to different spatial contexts: land uses, interfaces (adjacent land use pairs), agroecosystems, and landscapes. We selected 30 sites in the littoral region of Argentina representing three types of land uses neighboring Eucalyptus plantations: adult eucalypt plantations, citrus plantations, and semi-natural habitats. At each site, we quantified and identified LCA nests and characterized landscape composition and configuration in circles of 250 m radius. LCA nest abundance and presence were similar across different land uses, interfaces, and agroecosystems. Nest presence decreased in landscapes with increasing mean perimeter/area ratio and citrus coverage, whereas LCA abundance showed a similar trend. This indicates that heterogeneous landscapes and those with greater citrus plantation coverage were less likely to have LCA nests. Our findings suggest that landscape configuration was the main predictor of the LCA presence. Understanding the dynamics of LCAs populations and their complex associations with landscape components will contribute to developing successful environmental pest management strategies for plantation forests.
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spelling doaj.art-afc92ed1e5d34b0f822e22d2e411b4702023-11-26T12:59:16ZengNature PortfolioScientific Reports2045-23222023-08-011311910.1038/s41598-023-40426-9Landscape configuration modulates the presence of leaf-cutting ants in eucalypt plantationsPablo Cavigliasso0Ezequiel González1Abel Scherf2José Villacide3INTA EEA ConcordiaInstituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET - Universidad Nacional de Córdoba (UNC)INTA EEA MontecarloGrupo de Ecología de Poblaciones de Insectos, IFAB-INTA BarilocheAbstract Pest responses to landscape complexity show variable patterns globally, primarily related to species traits and specific managed habitats. Leaf-cutting ants (LCAs) are native insects and important pests of plantation forests in South America. We evaluated the responses of LCA nests in young Eucalyptus plantations to different spatial contexts: land uses, interfaces (adjacent land use pairs), agroecosystems, and landscapes. We selected 30 sites in the littoral region of Argentina representing three types of land uses neighboring Eucalyptus plantations: adult eucalypt plantations, citrus plantations, and semi-natural habitats. At each site, we quantified and identified LCA nests and characterized landscape composition and configuration in circles of 250 m radius. LCA nest abundance and presence were similar across different land uses, interfaces, and agroecosystems. Nest presence decreased in landscapes with increasing mean perimeter/area ratio and citrus coverage, whereas LCA abundance showed a similar trend. This indicates that heterogeneous landscapes and those with greater citrus plantation coverage were less likely to have LCA nests. Our findings suggest that landscape configuration was the main predictor of the LCA presence. Understanding the dynamics of LCAs populations and their complex associations with landscape components will contribute to developing successful environmental pest management strategies for plantation forests.https://doi.org/10.1038/s41598-023-40426-9
spellingShingle Pablo Cavigliasso
Ezequiel González
Abel Scherf
José Villacide
Landscape configuration modulates the presence of leaf-cutting ants in eucalypt plantations
Scientific Reports
title Landscape configuration modulates the presence of leaf-cutting ants in eucalypt plantations
title_full Landscape configuration modulates the presence of leaf-cutting ants in eucalypt plantations
title_fullStr Landscape configuration modulates the presence of leaf-cutting ants in eucalypt plantations
title_full_unstemmed Landscape configuration modulates the presence of leaf-cutting ants in eucalypt plantations
title_short Landscape configuration modulates the presence of leaf-cutting ants in eucalypt plantations
title_sort landscape configuration modulates the presence of leaf cutting ants in eucalypt plantations
url https://doi.org/10.1038/s41598-023-40426-9
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AT abelscherf landscapeconfigurationmodulatesthepresenceofleafcuttingantsineucalyptplantations
AT josevillacide landscapeconfigurationmodulatesthepresenceofleafcuttingantsineucalyptplantations