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| Roques, A.; Auger-Rozenberg, M.A.; Boivin, S.; Cariou, M.L.; Silvain, J.F.; Fady, B.. |
| The project aimed at contributing to understand the ecological and genetic mechanisms underlying the possibilities of establishment of exotic insects in the genus Megastigmus (Hymenoptera: Torymidae), specialized in the exploitation of forest seeds, and at defining suitable methods of monitoring and management of the invasive insect populations. For that, we intended to compare two distinct models host seed/ Megastigmus, crossing different first date of invasion and taxonomic structure of the forests: (i) true firs (Abies)/Megastigmus where the resource, indigenous, is exploited by a native species, M. suspectus, in competition with at least 5 invasive species of North American origin, and (ii) true cedars (Cedrus)/Megastigmus where the resource, itself... |
| Tipo: Conference Paper |
Palavras-chave: HYMENOPTERE; HYMENOPTERA; MEGASTIGMUS; CHALCIDIEN; ESPECE EXOTIQUE INVASIVE ; INVASION; INSECTE NUISIBLE; IMPACT ECOLOGIQUE; REGENERATION NATURELLE. |
| Ano: 2006 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009f77d8ad&uri=/notices/prodinra1/2010/05/ |
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| Roques, A.; Sun, J.H.; Auger-Rozenberg, M.A.; Hua, O.. |
| A total of 39 insect species, mostly seed chalcids in the genus Megastigmus (Hymenoptera), but also midges (Diptera), are listed as potential seed-borne invaders of Chinese conifers. Although the number of native seed insects per conifer genus does not differ between China and other biogeographical regions, there are significantly fewer seed insects associated with each conifer genus in China than potential invaders. The eventual success of the invaders is likely to depend on the presence of native Chinese conifers that are congeneric with the original host, or on the presence of the original host as an exotic. When a substantial entomofauna is already associated with cones, competition for seed resources may limit the potential impact of invaders because... |
| Tipo: Journal Article |
Palavras-chave: MEGASTIGMUS; CHALCIDIEN; INTRODUCTION ACCIDENTELLE; INVASION; INSECTE SEMINIPHAGE; INSECTE DEPREDATEUR DES SEMENCES; INSECTE XYLOPHAGE. |
| Ano: 2003 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0400000807105993&uri=/notices/prodinra1/2010/11/ |
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