Potential invasion of China by exotic insect pests associated with tree seeds
文献类型：SCI/SSCI论文
| 作者 | Roques A. ; Sun J. H. ; Auger-Rozenberg M. A. ; Hua O. |
| 发表日期 | 2003 |
| 关键词 | exotic pests Megastigmus seed insects tree seeds douglas-fir seed trisetacus prostigmata-eriophyoidea spermotrophus wachtl hymenoptera torymidae france cones |
| 英文摘要 | 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 seed insects are usually the last organisms to colonize the cone. A survey of 26 fir species, both native and introduced to Europe, showed that overall seed infestation by five species of exotic chalcids is negatively correlated to levels of damage by native insects, except on the original hosts of the chalcids. Similar patterns are hypothesized for native firs, spruces, Douglas firs, and larches in China. Uncontrolled importation of seeds and nuts of broad-leaved trees could also facilitate the introduction of seed chalcids, seed bruchids, tortricid moths and nut weevils into China. Only six species of seed chalcids are present in China, out of the 72 known to attack broad-leaved seeds over the world. |
| 出处 | Biodiversity and Conservation |
| 卷 | 12 |
| 期 | 11 |
| 页 | 2195-2210 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0960-3115 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23139]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Roques A.,Sun J. H.,Auger-Rozenberg M. A.,et al. Potential invasion of China by exotic insect pests associated with tree seeds. 2003. |
入库方式： OAI收割
来源：地理科学与资源研究所
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