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Ant-lepidopteran associations along African forest edges

Déjean Alain, Azémar Frédéric, Libert Michel, Compin Arthur, Hérault Bruno, Orivel Jérôme, Bouyer Thierry, Corbara Bruno. 2017. Ant-lepidopteran associations along African forest edges. Naturwissenschaften, 104 (1-2):7, 14 p.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q2, Sujet : MULTIDISCIPLINARY SCIENCES

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Abstract : Working along forest edges, we aimed to determine how some caterpillars can co-exist with territorially dominant arboreal ants (TDAAs) in tropical Africa. We recorded caterpillars from 22 lepidopteran species living in the presence of five TDAA species. Among the defoliator and/or nectarivorous caterpillars that live on tree foliage, the Pyralidae and Nymphalidae use their silk to protect themselves from ant attacks. The Notodontidae and lycaenid Polyommatinae and Theclinae live in direct contact with ants; the Theclinae even reward ants with abundant secretions from their Newcomer gland. Lichen feeders (lycaenid; Poritiinae), protected by long bristles, also live among ants. Some lycaenid Miletinae caterpillars feed on ant-attended membracids, including in the shelters where the ants attend them; Lachnocnema caterpillars use their forelegs to obtain trophallaxis from their host ants. Caterpillars from other species live inside weaver ant nests. Those of the genus Euliphyra (Miletinae) feed on ant prey and brood and can obtain trophallaxis, while those from an Eberidae species only prey on host ant eggs. Eublemma albifascia (Erebidae) caterpillars use their thoracic legs to obtain trophallaxis and trophic eggs from ants. Through transfer bioassays of last instars, we noted that herbivorous caterpillars living in contact with ants were always accepted by alien conspecific ants; this is likely due to an intrinsic appeasing odor. Yet, caterpillars living in ant shelters or ant nests probably acquire cues from their host colonies because they were considered aliens and killed. We conclude that co-evolution with ants occurred similarly in the Heterocera and Rhopalocera. (Résumé d'auteur)

Mots-clés Agrovoc : Formicidae, Lepidoptera, Écologie animale, Forêt, Dynamique des populations, Pyralidae, Nymphalidae, forêt tropicale, Route forestière

Mots-clés géographiques Agrovoc : Cameroun

Mots-clés complémentaires : Alchornea cordifolia

Classification Agris : L20 - Animal ecology
K01 - Forestry - General aspects
L51 - Animal physiology - Nutrition
L60 - Animal taxonomy and geography

Champ stratégique Cirad : Axe 6 (2014-2018) - Sociétés, natures et territoires

Auteurs et affiliations

  • Déjean Alain, CNRS (GUF)
  • Azémar Frédéric, Université Toulouse III Paul Sabatier (FRA)
  • Libert Michel
  • Compin Arthur, CNRS (FRA)
  • Hérault Bruno, CIRAD-ES-UMR Ecofog (GUF) ORCID: 0000-0002-6950-7286
  • Orivel Jérôme, CNRS (GUF)
  • Bouyer Thierry
  • Corbara Bruno, CNRS (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/583969/)

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