@Article{Dejean_etal2018,
author="Dejean, A.
and Compin, A.
and Leponce, M.
and Az{\'e}mar, F.
and Bonhomme, C.
and Talaga, S.
and Pelozuelo, L.
and H{\'e}naut, Y.
and Corbara, B.",
title="Ants impact the composition of the aquatic macroinvertebrate communities of a myrmecophytic tank bromeliad",
journal="Comptes Rendus Biologies",
year="2018",
volume="341",
number="3",
pages="200--207",
optkeywords="Aquatic macroinvertebrates",
optkeywords="Ant-plant relationships",
optkeywords="Diversity",
optkeywords="Food webs",
optkeywords="Tank bromeliads",
optkeywords="Macro-invert{\'e}br{\'e}s aquatiques",
optkeywords="Relations plantes-fourmis",
optkeywords="Diversit{\'e}",
optkeywords="R{\'e}seaux trophiques",
optkeywords="Brom{\'e}liac{\'e}es {\`a} r{\'e}servoirs",
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. R{\'e}sum{\'e} Dans une for{\^e}t inondable du Mexique, sur 92~individus de la brom{\'e}liac{\'e}e myrm{\'e}cophyte Aechmea bracteata, seuls trois {\'e}taient d{\'e}pourvus d{\textquoteright}une colonie de fourmis, 13~abritaient Azteca serica, 43~Dolichoderus bispinosus et 33~Neoponera villosa. La pr{\'e}sence des fourmis favorise la diversit{\'e} au sein des communaut{\'e}s aquatiques de macro-invert{\'e}br{\'e}s (30~brom{\'e}liac{\'e}es {\'e}tudi{\'e}es, index de Shannon, profils de diversit{\'e}). Une analyse en composantes principales (ACP) montre que la pr{\'e}sence de fourmis n{\textquoteright}est pas corr{\'e}l{\'e}e avec la taille de la plante, la quantit{\'e} d{\textquoteright}eau, le nombre de puits, la quantit{\'e} de mati{\`e}re organique et la radiation incidente. L{\textquoteright}ACP et un mod{\`e}le mixte g{\'e}n{\'e}ralis{\'e} montrent un impact d{\textquoteright}Azteca serica (compar{\'e} aux autres cas) attribuable {\`a} une plus grande quantit{\'e} de pr{\'e}dateurs (effet top--down). La pr{\'e}sence et l{\textquoteright}identit{\'e} des fourmis jouent un r{\^o}le sur la composition des communaut{\'e}s de macro-invert{\'e}br{\'e}s aquatiques {\`a} travers des interactions directes, les ouvri{\`e}res {\'e}vacuant f{\`e}ces et d{\'e}chets dans les r{\'e}servoirs.",
optnote="exported from refbase (http://php.ecofog.gf/refbase/show.php?record=821), last updated on Fri, 12 Oct 2018 15:16:36 -0300",
issn="1631-0691",
doi="10.1016/j.crvi.2018.02.003",
opturl="http://www.sciencedirect.com/science/article/pii/S1631069118300234"
}