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<publisher>HAL CCSD</publisher>
<title lang=en>Ant protection of a Heteropteran trophobiont against a parasitoid wasp</title>
<creator>Gibernau, Marc</creator>
<creator>Dejean, Alain</creator>
<contributor>Sciences pour l'environnement (SPE) ; Université Pascal Paoli (UPP) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Ecole Nationale du Génie Rural, des Eaux et des Forêts (ENGREF) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire Ecologie Fonctionnelle et Environnement - ECOLAB (ECOLAB) ; Institut National Polytechnique [Toulouse] (INP) - Université Paul Sabatier - Toulouse 3 (UPS) - Observatoire Midi-Pyrénées (OMP) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 0029-8549</source>
<source>EISSN: 1432-1939</source>
<source>Oecologia</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-01202757</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01202757</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01202757</source>
<source>Oecologia, Springer Verlag, 2001, 126, pp.53-57. 〈10.1007/s004420000479〉</source>
<identifier>DOI : 10.1007/s004420000479</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s004420000479</relation>
<language>en</language>
<subject lang=en>Trophobiosis</subject>
<subject lang=en>Plataspidae</subject>
<subject lang=en>Formicidae</subject>
<subject lang=en>Encyrtidae</subject>
<subject>[SDV] Life Sciences [q-bio]</subject>
<subject>[SDV.BV] Life Sciences [q-bio]/Vegetal Biology</subject>
<subject>[SDV.BV.BOT] Life Sciences [q-bio]/Vegetal Biology/Botanics</subject>
<subject>[SDV.BA] Life Sciences [q-bio]/Animal biology</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Trophobiotic associations between Caternaultiella rugosa (Heteroptera; Plataspidae) and two ant species, Camponotus brutus (Formicidae) and Myrmicaria opaciventris (Myrmicinae), were recorded at the base of the trunks of Bridelia micrantha (Euphorbiaceae). The bug colonies were generally sheltered in pavilions built by the ants, but during periods of proliferation, part of the colonies developed outside the pavilions. We examined the protective activity of the two associated ant species against an encyrtid parasitoid wasp that parasitized egg masses of the bug. Egg masses situated outside the pavilions were significantly less parasitized on trees occupied by either ant species than on experimental trees where ants were excluded by a sticky barrier. Egg masses were significantly less parasitized on trees occupied by C. brutus than on those occupied by M. opaciventris, both inside and outside the pavilions. Moreover, they were less parasitized inside than outside the pavilions when protected by C. brutus. Inside the pavilions, parental care of the egg masses and first-instar nymphs was abandoned to the ants. In contrast, outside the pavilions, the females of C. rugosa guarded egg masses and clusters of first-instar nymphs. Furthermore, adults and last-instar nymphs grouped around and above first-instar nymphs, forming a protective shield. These groups formed and disintegrated daily, according to the attending ant's rhythm of activity</description>
<date>2001</date>
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