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Aebi, Alexandre
Nom
Aebi, Alexandre
Affiliation principale
Site web
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MER
Email
alexandre.aebi@unine.ch
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Voici les éléments 1 - 10 sur 68
- PublicationMétadonnées seulementDetecting arthropod intraguild predation in the field(2011)
; ;Brown, Peter M. J. ;De Clercq, Patrick ;Hautier, Louis ;Howe, Andy ;Ingels, Brecht ;Ravn, Hans-Peter ;Sloggett, John J. ;Zindel, RenateThomas, Alison - PublicationMétadonnées seulementDistribution of endosymbiotic reproductive manipulators reflects invasion process and not reproductive system polymorphism in the little fire ant Wasmannia auropunctata(2013)
;Rey, Olivier ;Estoup, Arnaud ;Facon, Benoit ;Loiseau, Anne; ;Duron, Olivier ;Vavre, FabriceFoucaud, Julien - PublicationAccès libreHorismenus species (Hymenoptera: Eulophidae) in a bruchid beetle parasitoid guild, including the description of a new species
;Hansson, Christer; Four species of Horismenus (Hymenoptera: Eulophidae) associated with Acanthoscelides spp.(Coleoptera: Bruchidae), three of which are also associated with Phaseolus spp., are treated. One of the species, H. butcheri, is described as new and the remaining three species are redescribed. Allfour species are diagnosed in a key. A lectotype is designated for Holcopelte productus Ashmead. - PublicationMétadonnées seulementEvolution and diversity of Rickettsia bacteria(2009)
;Weinert, Lucy A. ;Werren, John H.; ;Stone, Graham N.Jiggins, Francis M - PublicationAccès libreAgriculteurs, apiculteurs et chercheurs unis pour la sauvegarde des pollinisateurs(2019-11-1)
;Sutter, Louis; ;Buchwalder, Gerald ;Caballé, Pierre ;Dietemann, Vincent ;Girardin, Olivier; ;Jacopin-Bucher, Eloise ;Mayor, Pascal ;Ménétrier, Vanessa; Varennes, Yann-David - PublicationAccès librePotential for exploitative competition, not intraguild predation, between invasive harlequin ladybirds and flowerbugs in urban parks(2015-11-25)
;Howe, Andy G ;Ravn, Hans-Peter ;Bressen Pipper, ChristianIn aphidophagous insect communities invaded by the harlequin ladybird Harmonia axyridis Pallas (Coleoptera: Coccinellidae), intraguild predation (IGP) is widely implicated in the displacement of native predators, however, indirect trophic interactions are rarely assessed. Using molecular gut-content analysis, we investigated the relative frequencies of IGP by H. axyridis on the predatory flowerbug Anthocoris nemoralis Fabricius (Heteroptera: Anthocoridae) and prey overlap for a shared prey, the lime aphid Eucallipterus tiliae L. (Hemiptera: Aphididae), in Tilia × europaea crowns in urban parks. The frequency of IGP by H. axyridis was low: 2.7 % of larvae and 3.4 % of adults tested positive for A. nemoralis DNA. The presence of lime aphid DNA in predators was higher: 56.5 and 47.9 % of H. axyridis larvae and adults, respectively, contained E. tiliae DNA, whereas 60.8 % of adult A. nemoralis tested positive for aphid DNA. Incorporating insect densities revealed that the density of H. axyridis larvae had a strong negative effect on the likelihood of detecting aphid DNA in A. nemoralis. Prey overlap for E. tiliae was widespread in space (2–13 m height in tree crowns) and time (May–October 2011) which suggests that interspecific exploitative competition, mediated by predator life-stage, more so than IGP, is an important indirect trophic interaction between co-occurring H. axyridis and A. nemoralis. Whether exploitative competition equates to displacement of A. nemoralis populations requires further investigation. Our results emphasize the need to incorporate indirect interactions in studies of insect communities following invasion, not least because they potentially affect more species than direct interactions alone. - PublicationMétadonnées seulement
- PublicationAccès libreLes pesticides: lacunes et alternatives(2020-2-9)
; Les études de l’impact des néonicotinoïdes sur les abeilles ont permis une prise de conscience sur la toxicité de ces molécules. Mais ces insectes ne sont pas les seuls à subir les conséquences de l’usage massif des pesticides en agriculture conventionnelle. En nous focalisant sur l’abeille, ne risque-t-on pas de négliger les effets sur les autres organismes vivants? - PublicationMétadonnées seulementEarly parasitoid recruitment in invading cynipid galls(: Springer, 2006)
;Schönrogge, Karsten ;Moriya, Seiichi ;Melika, George ;Randle, Zoë ;Begg, Tracey; Stone, Graham N.