Do bromeliads affect the arboreal ant communities on orange trees in northwestern Costa Rica?

Ants often interact with other invertebrates as predators or mutualists. Epiphytic bromeliads provide nesting sites for ants, and could increase ant abundances in the tree canopy. We surveyed ants in the foliage of orange trees that either hosted bromeliads or did not. To determine if observed assoc...

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Main Authors: Beatrice Rost-Komiya, M Alex Smith, Pierre Rogy, Diane S Srivastava
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0271040
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author Beatrice Rost-Komiya
M Alex Smith
Pierre Rogy
Diane S Srivastava
author_facet Beatrice Rost-Komiya
M Alex Smith
Pierre Rogy
Diane S Srivastava
author_sort Beatrice Rost-Komiya
collection DOAJ
description Ants often interact with other invertebrates as predators or mutualists. Epiphytic bromeliads provide nesting sites for ants, and could increase ant abundances in the tree canopy. We surveyed ants in the foliage of orange trees that either hosted bromeliads or did not. To determine if observed associations between bromeliads and tree ants were causal, we removed bromeliads from half of the trees, and resurveyed ants six weeks later. Our results show that bromeliad presence is correlated with higher ant abundances and different species of ants on orange trees during the dry season. This increase in ant abundance was driven primarily by Solenopsis ants, which were both numerous and found to facultatively nest in bromeliads. Bromeliad removal did not affect either ant abundance or composition, potentially because this manipulation coincided with the transition from dry to wet season. Other ant species were never encountered nesting in bromeliads, and the abundances of such ants on tree leaves were unaffected by bromeliad presence or removal. Considering the importance of ants in herbivore regulation, our findings suggest that bromeliads-through their association with ants-could indirectly be associated with biological control in agricultural systems.
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spelling doaj.art-08e2e8751f89458e9b472d20bc6ae99d2022-12-22T03:40:16ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01177e027104010.1371/journal.pone.0271040Do bromeliads affect the arboreal ant communities on orange trees in northwestern Costa Rica?Beatrice Rost-KomiyaM Alex SmithPierre RogyDiane S SrivastavaAnts often interact with other invertebrates as predators or mutualists. Epiphytic bromeliads provide nesting sites for ants, and could increase ant abundances in the tree canopy. We surveyed ants in the foliage of orange trees that either hosted bromeliads or did not. To determine if observed associations between bromeliads and tree ants were causal, we removed bromeliads from half of the trees, and resurveyed ants six weeks later. Our results show that bromeliad presence is correlated with higher ant abundances and different species of ants on orange trees during the dry season. This increase in ant abundance was driven primarily by Solenopsis ants, which were both numerous and found to facultatively nest in bromeliads. Bromeliad removal did not affect either ant abundance or composition, potentially because this manipulation coincided with the transition from dry to wet season. Other ant species were never encountered nesting in bromeliads, and the abundances of such ants on tree leaves were unaffected by bromeliad presence or removal. Considering the importance of ants in herbivore regulation, our findings suggest that bromeliads-through their association with ants-could indirectly be associated with biological control in agricultural systems.https://doi.org/10.1371/journal.pone.0271040
spellingShingle Beatrice Rost-Komiya
M Alex Smith
Pierre Rogy
Diane S Srivastava
Do bromeliads affect the arboreal ant communities on orange trees in northwestern Costa Rica?
PLoS ONE
title Do bromeliads affect the arboreal ant communities on orange trees in northwestern Costa Rica?
title_full Do bromeliads affect the arboreal ant communities on orange trees in northwestern Costa Rica?
title_fullStr Do bromeliads affect the arboreal ant communities on orange trees in northwestern Costa Rica?
title_full_unstemmed Do bromeliads affect the arboreal ant communities on orange trees in northwestern Costa Rica?
title_short Do bromeliads affect the arboreal ant communities on orange trees in northwestern Costa Rica?
title_sort do bromeliads affect the arboreal ant communities on orange trees in northwestern costa rica
url https://doi.org/10.1371/journal.pone.0271040
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