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<title lang=en>Convergent evolution of intraguild predation in phytotelm-inhabiting mosquitoes</title>
<creator>Talaga, Stanislas</creator>
<creator>Leroy, Céline</creator>
<creator>Cereghino, Régis</creator>
<creator>Dejean, Alain</creator>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Université de Guyane (UG) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire Ecologie Fonctionnelle et Environnement (EcoLab (équipe ECSECO)) ; Institut National Polytechnique [Toulouse] (INP) - Institut National de la Recherche Agronomique (INRA) - Université Paul Sabatier - Toulouse 3 (UPS) - Ecole Nationale Supérieure Agronomique de Toulouse - PRES Université de Toulouse - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>French Agence Nationale de la Recherche [ANR-10-LABX-25-01]; Agence Nationale de la Recherche through the Rainwebs project [ANR-12-BSV7-0022-01]; Universite Antilles-Guyane</contributor>
<source>ISSN: 0269-7653</source>
<source>EISSN: 1573-8477</source>
<source>Evolutionary Ecology</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-01603304</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01603304</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01603304</source>
<source>Evolutionary Ecology, Springer Verlag, 2016, 30 (6), pp.1133-1147. 〈10.1007/s10682-016-9862-3〉</source>
<identifier>DOI : 10.1007/s10682-016-9862-3</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s10682-016-9862-3</relation>
<identifier>PRODINRA : 405771</identifier>
<language>en</language>
<subject lang=en>Coadaptation</subject>
<subject lang=en>French Guiana</subject>
<subject lang=en>Interaction networks</subject>
<subject lang=en>Mosquito-plant associations</subject>
<subject lang=en>Neotropics</subject>
<subject lang=en>Sabethini</subject>
<subject>[SDV] Life Sciences [q-bio]</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Intraguild predation (IGP) is a type of biological interaction involving the killing and consuming of competing species that exploit similar and often limited resources. This phenomenon is widespread among a great variety of taxonomic groups and has already been reported for mosquito (Diptera: Culicidae) larvae. Moreover, the larvae of certain mosquito species of the tribe Sabethini have evolved modified mouthparts ending in rigid apical structures signaling their capacity to be effective intraguild predators. We assumed that IGP confers a selective advantage under severe competitive conditions by both providing an immediate energetic gain and reducing potential competition. Because potential competition is likely to increase with decreasing habitat size, we hypothesized that the proportion of species with modified mouthparts would increase in smaller aquatic habitats. We tested this hypothesis by examining the mosquito species naturally associated with phytotelmata of decreasing sizes in French Guiana. We show that the degree of specialization in mosquito-phytotelm associations is high, suggesting a long coevolutive process. Indeed, short-term interaction experiments confirmed that species with modified mouthparts are able to prey upon similarly-sized intraguild prey and are, thus, effective intraguild predators. In addition, these species are larger and associated with smaller phytotelmata than those with typical mouthparts. Moreover, below a certain threshold of phytotelm size, only species with modified mouthparts were present. These results show that IGP confers a selective advantage under severe competitive conditions and results from the coadaptation of mosquito species to their specific phytotelm habitat. The presence of functionally analogous structures in different mosquito genera also implies that IGP has emerged from convergent evolution in small phytotelmata.</description>
<date>2016</date>
</dc>
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