• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Turkish journal of zoology >Impacts of anthropogenic activities and habitat degradation on breeding waterbirds
【24h】

Impacts of anthropogenic activities and habitat degradation on breeding waterbirds

机译：人为活动和栖息地退化对繁殖水鸟的影响

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

We investigated the efects of threats on breeding waterbirds in the Gediz Delta, Turkey. Breeding Bird Surveys were conducted in 2002 and 2006. Te survey area comprised 305 UTM grids of 1 × 1 km~2. Populations and distributions of breeding birds were compared between 2002 and 2006 for the UTM grids under threat and without any threat using paired samples t-test, Wilcoxon signed-rank test, and GIS. Urbanization, industrialization, pollution, overgrazing, disturbance, and illegal reed cutting and burning were identifed in 151 (49.5%) of 305 grids in 2002. Te mean total number of breeding birds per UTM grid slightly decreased in areas under threat, but signifcantly increased (P < 0.05) in areas without threat. Te mean total number of breeding waterbirds signifcantly decreased (P < 0.05) in both the grids under and without threat. Out of 30 waterbirds breeding in grids under threat, 23 shifed their breeding locations. Te total number of breeding pairs of 9 waterbirds decreased, 7 species increased, and 6 species were stable. Te maximum breeding code of 6, maximum number of breeding pairs of 11, total number of observed birds of 11, and frequency of occurrence of 15 species signifcantly decreased in UTM grids under threat. Treats have signifcantly afected (P < 0.05) the breeding populations of bird species even in a short period of 4 years.
机译：我们调查了威胁对土耳其Gediz三角洲繁殖水鸟的影响。 2002年和2006年进行了繁殖鸟类调查。调查区域包括305个1×1 km〜2的UTM网格。使用配对样本t检验，Wilcoxon秩和检验和GIS，对2002年至2006年有威胁且无任何威胁的UTM网格的繁殖鸟类的种群和分布进行了比较。 2002年，在305个网格中的151个（49.5％）中发现了城市化，工业化，污染，过度放牧，干扰以及非法芦苇切割和焚烧。在受威胁的区域中，每个UTM网格的繁殖鸟类总数略有下降，但显着增加（P <0.05）在没有威胁的区域。在没有威胁的情况下，两个网格中的繁殖水鸟总数均显着下降（P <0.05）。在受威胁的网格中繁殖的30只水鸟中，有23只将其繁殖地点转移了。繁殖对总数为9只水鸟，减少了7种，稳定了6种。在受威胁的UTM网格中，最大育种代码为6，最大育种对数为11，观察到的鸟类总数为11，以及15种物种的发生频率显着下降。即使在短短的4年内，零食也已显着影响（P <0.05）鸟类的繁殖种群。

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