• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bulletin de la Societe Zoologique de France >REPARTITION ACTUELLE ET MODES DE PROGRESSION DE CORBICULA SPP. EN FRANCE
【24h】

REPARTITION ACTUELLE ET MODES DE PROGRESSION DE CORBICULA SPP. EN FRANCE

机译：科比库拉SPP的当前分布和发展模式。在法国

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Corbicula is a bivalve mollusc genus with a wide distribution in Asia, Africa and Australia. Corbiculidae have been accidentally introduced, during the first half of the twentieth century, in USA. They have since dispersed widely in the whole American continent. The introduction of Corbicula spp. to Europe dates from the 1980s. Some specimens were encountered in the mouth of the river Tage (in Portugal) and in the lower course of the river Dordogne (in France). During the 1990s, this species has been observed in Spain, Belgium, the Netherlands and Germany. The taxonomic status of Corbicula species still remains uncertain in Europe. The polymorphism of Corbicula spp. has induced some researchers to see in the specimens collected from various rivers, different species or sub-species. In the present study, the authors describe and illustrate two different types, based on the morphology of the shell, which are assigned to the species C.fluminalis and C.fluminea. The historical background of this settlement in France shows that the spread of Corbicula spp. is extremely fast. After a first observation in 1980 in the lower Dordogne, this species has been successively discovered in 1985 in the river Garonne, then in the canal du Midi in 1989, in the river Loire in 1990, in the lateral canal to the river Garonne in 1993, in the river Rhin and in the river Moselle in 1994, and finally in the river Seine in 1997. The different steps of the invasion of the French hydrological network are analysed. In 1999, the colonization in progress in the river Seine prompted the authors to examine the spread of this bivalve mollusc through the hydrological bassin of the river Seine. The importance of navigation canals, linking up several rivers, in the mode of progression of this species could thus be revealed, particularly as the authors were also surveying the spread of the species in the river Loire at the same time. The rapid spread of Corbicula implies effective colonizing strategies in this invasive species which are discussed in a specific chapter. The impact of such an alien species on a weakened freshwater environment is also emphasised, since a fast expansion has ecological consequences for the physical environment and the local malacofauna.
机译：Corbicula是双壳软体动物属，在亚洲，非洲和澳大利亚分布广泛。在二十世纪上半叶，在美国偶然引入了科。自那时以来，它们已广泛散布在整个美洲大陆。引入Corbicula spp。到欧洲可以追溯到1980年代。在塔格河（葡萄牙）和多尔多涅河下游（法国）的河口遇到了一些标本。在1990年代期间，在西班牙，比利时，荷兰和德国已观察到该物种。在欧洲，Corbicula物种的分类状况仍然不确定。 Corbicula spp。的多态性。使一些研究人员看到了从各种河流，不同物种或亚种收集的标本。在本研究中，作者根据壳的形态描述和说明了两种不同的类型，它们分别被指定为C.fluminalis和C.fluminea。法国此定居点的历史背景表明，Corbicula spp的传播。非常快。在1980年在多尔多涅河下游地区进行首次观测之后，该物种于1985年在加龙河中依次被发现，然后在1989年的《米迪运河》中，在1990年的卢瓦尔河的卢瓦尔河的横向运河中被发现。分别是1993年的加龙河，1994年的莱茵河和摩泽尔河，以及1997年的塞纳河。分析了法国水文网络入侵的不同步骤。 1999年，塞纳河进行中的殖民化进程促使作者研究了这种双壳类软体动物在塞纳河水文贝辛中的扩散。因此，可以揭示以该物种的发展方式连接多条河流的航道的重要性，特别是因为作者同时也在调查该物种在卢瓦尔河中的传播。 Corbicula的迅速传播意味着在该入侵物种中的有效定居策略将在特定章节中进行讨论。还强调了这种外来物种对减弱的淡水环境的影响，因为快速扩张会对自然环境和当地的疟疾造成生态影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号