...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Parasitology >Interspecific and intraspecific interactions in the monogenean communities of fish: a question of study scale?
【24h】

Interspecific and intraspecific interactions in the monogenean communities of fish: a question of study scale?

机译：鱼单基因群落中的种间和种内相互作用：研究规模的问题？

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

Monogenean communities of fish have generally been considered non-interactive as negative interspecific interactions have rarely been reported. Most of the earlier studies on monogenean communities, however, have been conducted not only in systems with relatively low parasite abundances but, more importantly, at study scales where microhabitat-level interactions between the parasites are easily overlooked. We examined the communities of 3 abundant Dactylogyrus (Monogenea) species on the gills of crucian carp (Carassius carassius) by analysing the interactions at the scale of individual gill filaments, where interactions between the species, if any, should most likely take place. Contrary to our expectations, we did not find evidence for competitive exclusion between the species, which suggests that monogenean communities are non-interactive even in high parasite abundances. At the species level, individual parasites were highly aggregated within the filaments, essentially showing a strong tendency to occur at either end of a filament. This, together with the result of differences in the distribution of juvenile parasites within the filaments compared to adults, suggests that these parasites are able to actively seek out their conspecifics in small-scale microhabitats during maturation, which again could enhance their mate-finding.
机译：鱼的单基因群落通常被认为是非相互作用的，因为很少有人报道过负面的种间相互作用。但是，大多数早期关于单基因群落的研究不仅在寄生虫丰度相对较低的系统中进行，更重要的是，在研究规模上很容易忽略了这些寄生虫之间的微生境级相互作用。我们通过分析单个g丝尺度上的相互作用，研究了carp鱼Car上3种丰富的乳齿象（Monogenea）物种的群落，这些物种之间的相互作用（如果有的话）最有可能发生。与我们的预期相反，我们没有找到物种之间竞争性排斥的证据，这表明即使在高寄生虫数量下，单基因群落也不是相互作用的。在物种水平上，细丝内的单个寄生虫高度聚集，本质上显示出在细丝的任一端出现强烈趋势。这与成年人中细丝内幼虫的分布不同的结果一起，表明这些寄生虫能够在成熟过程中主动寻找小型微生境中的种，这又可以增强它们的交配能力。

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