Ants impact the composition of the aquatic macroinvertebrate communities of a myrmecophytic tank bromeliad |
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| Authors: | Alain Dejean Arthur Compin Maurice Leponce Frédéric Azémar Camille Bonhomme Stanislas Talaga Laurent Pelozuelo Yann Hénaut Bruno Corbara |
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| Affiliation: | 1. CNRS, UMR EcoFoG, AgroParisTech, Cirad, INRA, université des Antilles, université de Guyane, 97310 Kourou, France;2. Ecolab, université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse, France;3. Aquatic and Terrestrial Ecology, Royal Belgian Institute of Natural Sciences, 29, rue Vautier, 1000 Brussels, Belgium;4. Unité d’entomologie médicale, Institut Pasteur de la Guyane, 23, avenue Pasteur, BP 6010, 97306 Cayenne cedex, France;5. El Colegio de la Frontera Sur, Departamento de Conservaciòn de la Biodiversidad, Quintana Roo, Chetumal, Mexico;6. Université Clermont Auvergne, CNRS, LMGE, 63000 Clermont-Ferrand, France |
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| Abstract: | In an inundated Mexican forest, 89 out of 92 myrmecophytic tank bromeliads (Aechmea bracteata) housed an associated ant colony: 13 sheltered Azteca serica, 43 Dolichoderus bispinosus, and 33 Neoponera villosa. Ant presence has a positive impact on the diversity of the aquatic macroinvertebrate communities (n = 30 bromeliads studied). A Principal Component Analysis (PCA) showed that the presence and the species of ant are not correlated to bromeliad size, quantity of water, number of wells, filtered organic matter or incident radiation. The PCA and a generalized linear model showed that the presence of Azteca serica differed from the presence of the other two ant species or no ants in its effects on the aquatic invertebrate community (more predators). Therefore, both ant presence and species of ant affect the composition of the aquatic macroinvertebrate communities in the tanks of A. bracteata, likely due to ant deposition of feces and other waste in these tanks. |
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| Keywords: | Aquatic macroinvertebrates Ant-plant relationships Diversity Food webs Tank bromeliads Macro-invertébrés aquatiques Relations plantes-fourmis Diversité Réseaux trophiques Broméliacées à réservoirs |
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