...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ostrich >Bird communities in two oceanic island forests fragmented by roads on Tenerife, Canary Islands
【24h】

Bird communities in two oceanic island forests fragmented by roads on Tenerife, Canary Islands

机译：加那利群岛特内里费岛上的道路支离破碎的两个大洋岛屿森林中的鸟类群落

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

Although most studies on road effects on birds have been conducted on continental grounds, road fragmentation on oceanic islands is often heavier. We assessed variation in bird communities near ( less than or equal to 25 m) and far (>100 m) from forest roads dividing laurel and pine forests on Tenerife, Canary Islands. Line transects were used as the census technique. We compared community structure and species responses between both forests, and among forest interior and edges of paved and unpaved roads. We analysed richness and diversity of species in these different situations, and tested for significance in bird community descriptors and species abundance responses to road proximity. The bird community of the laurel forest showed significantly higher average population density, richness, diversity and evenness than that of the pine forest. None of the two forests showed significant differences in community descriptors between edge and interior, except for a higher evenness along unpaved roads in the laurel forest. However, the bird community showed more overall abundances, richness and diversity on unpaved than on asphalt road edges in laurel forest. Excepting two passerines (Turdus merula in laurel forest and Phylloscopus canariensis in pine forest), all species had similar abundances on road edges and forest interior regardless of forest type. Most species might be regarded as forest generalists. Changes detected between edge and interior on road-fragmented forests were, overall, small at the bird community level. Managers should consider the effects of road edge and road type on the more sensitive species in present and future road planning.
机译：尽管大多数关于鸟类对道路的影响的研究都是在大陆上进行的，但在大洋岛屿上的道路破碎化往往较重。我们评估了加纳利群岛特内里费岛上划分月桂树和松林的森林道路附近（小于或等于25 m）和远处（> 100 m）的鸟类群落的变化。线样线用作普查技术。我们比较了两种森林之间，森林内部以及铺装和未铺装道路边缘之间的群落结构和物种响应。我们分析了在这些不同情况下物种的丰富性和多样性，并测试了鸟类群落描述符和物种丰富度对道路接近性的响应意义。月桂林的鸟类群落的平均种群密度，丰富度，多样性和均匀性均显着高于松林。除月桂林中未铺砌的道路上的平坦度更高外，这两个森林的边缘和内部之间的群落描述均无显着差异。但是，与月桂林的柏油路边缘相比，未铺路的鸟类群落显示出更多的总体丰度，丰富性和多样性。除了两个雀形目（月桂树森林中的美人蕉（Turdus merula）和松林森林中的加拿大毛竹（Phylloscopus canariensis）），不论森林类型如何，所有物种在道路边缘和森林内部的丰度都相似。大多数物种可能被视为森林通才。总体而言，在鸟类群落的水平上，在道路碎片森林中，边缘和内部之间的变化很小。管理者应在当前和未来的道路规划中考虑道路边缘和道路类型对较敏感物种的影响。

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