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Dejean, A.; Petitclerc, F.; Compin, A.; Azémar, F.; Corbara, B.; Delabie, J.H.C.; Leroy, C. |
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Hollow internodes permit a neotropical understory plant to shelter multiple mutualistic ant species, obtaining protection and nutrient provisioning (myrmecotrophy) |
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Journal Article |
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2017 |
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American Naturalist |
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American Naturalist |
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190 |
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5 |
Pages |
E124-E131 |
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Ant-plant relationships; Biotic protection; Mutualism; Myrmecotrophy; Stable isotopes; Tachia guianensis |
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Abstract |
The Neotropical understory plant Tachia guianensis (Gentianaceae)- known to shelter the colonies of several ant species in its hollow trunks and branches-does not provide them with food rewards (e.g., extrafloral nectar). We tested whether these ants are opportunistic nesters or whether mutualistic relationships exist as for myrmecophytes or plants sheltering ant colonies in specialized hollow structures in exchange for protection from enemies and/or nutrient provisioning (myrmecotrophy). We noted 37 ant species sheltering inside T. guianensis internodes, three of them accounting for 43.5% of the cases. They protect their host plants from leaf-cutting ant defoliation and termite damage because individuals devoid of associated ants suffered significantly more attacks. Using the stable isotope 15N, we experimentally showed that the tested ant species furnish their host plants with nutrients. Therefore, a mutualism exists. However, because it is associated with numerous ant species, T. guianensis can be considered a nonspecialized myrmecophyte. © 2017 by The University of Chicago. |
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Institut de Recherche pour le Développement, UMR botAnique et Modélisation de l’Archtecture des Plantes et des Végétations, Cirad, CNRS, INRA, Université de Montpellier, Boulevard de la Lironde, TA A-51/PS2, Montpellier cedex 5, Brazil |
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Export Date: 2 November 2017 |
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EcoFoG @ webmaster @ |
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768 |
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