• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Oryx >New but nice? Do alien sacred ibises Threskiornis aethiopicus stabilize nesting colonies of native spoonbills Platalea leucorodia at Grand-Lieu Lake, France?
【24h】

New but nice? Do alien sacred ibises Threskiornis aethiopicus stabilize nesting colonies of native spoonbills Platalea leucorodia at Grand-Lieu Lake, France?

机译：新但是不错？外星人神圣的朱鹭Threskiornis aethiopicus是否能稳定法国Grand-Lieu湖上本地琵鹭Platalea leucorodia的筑巢殖民地？

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

In spite of the general concerns about introduction of exotic species there are contrary arguments that introduced species could increase local biodiversity and provide ecosystem services. The assertion that native spoonbills Platalea leucorodia are attracted by breeding, introduced sacred ibises Threskiornis aethiopicus, and thus that the spoonbill colonies will be more stable, has been developed as an argument against the proposed eradication of the sacred ibis in western France. We analysed the possible interaction between these two species using information from a 5-year nest survey (2002-2006) in a large swamp in western France. We found that: (1) The spoonbills began to breed significantly earlier than ibises, by 15-25 days. (2) In an analysis using a grid of 80-m squares no site-fidelity effect was observed from one year to the next, both species preferentially using previously unused cells from which the other species was absent and cells occupied by their own species. (3) Spoonbills had a significantly greater dispersion than ibises. (4) The spoonbills almost always settled (90.3%) near a spoonbill nest. These results do not suggest any regular positive attraction of the spoonbills towards the ibises and consequently do not support the proposal that ibises attract spoonbills and play a role in the conservation of this species.
机译：尽管人们普遍担心引进外来物种，但有相反的论点认为引进的物种可以增加当地的生物多样性并提供生态系统服务。关于反对在法国西部消灭神圣朱鹭的论点已经得到了这样一种说法，即当地的琵鹭有繁殖的吸引力，引入了神圣的朱鹭朱鹭（Threskiornis aethiopicus），因此琵鹭的殖民地将更加稳定。我们使用了法国西部一个大沼泽地进行的为期5年的巢穴调查（2002年至2006年）的信息，分析了这两种物种之间的可能相互作用。我们发现：（1）琵鹭在15-25天之前开始比朱鹭早得多的繁殖。 （2）在使用80平方米正方形的网格进行的分析中，从一年到下一年都没有观察到位点保真效果，两个物种都优先使用以前没有使用过的没有其他物种的细胞，而它们自己的物种所占据的细胞。 （3）琵鹭的分散度明显高于宜必思。 （4）琵鹭几乎总是定居在琵鹭巢附近（90.3％）。这些结果表明，琵鹭对朱鹭没有任何定期的积极吸引，因此不支持朱鹭吸引琵鹭并在该物种的保护中发挥作用的提议。

著录项

相似文献

  • 外文文献
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