• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Regional Environmental Change >Response of herbivorous geese to wintering habitat changes: conservation insights from long-term population monitoring in the East Dongting Lake, China
【24h】

Response of herbivorous geese to wintering habitat changes: conservation insights from long-term population monitoring in the East Dongting Lake, China

机译：草食鹅对越冬栖息地变化的响应：中国东部洞庭湖的长期种群监测对保护的启示

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

The majority of Eastern China's herbivorous geese overwinter in the East Dongting Lake, China, and there is growing concern about how changes in their habitats can affect the goose populations. General linear regressions were used to analyze the relationship between changes in the abundances of three herbivorous geese (Eastern Tundra Bean Goose Anser fabalis serrirostris, Lesser White-fronted Geese Anser erythropus, and Greater White-fronted Goose Anser albifrons frontalis) and their wintering habitats in the East Dongting Lake during 2002/2003-2014/2015. The fluctuations in three herbivorous goose abundances exhibited negative correlations with changes in interval duration (i.e., days between complete sedge meadow exposure and goose arrival in the study areas), but positive correlations with the normalized difference vegetation index (NDVI) of sedge meadow in late wintering seasons. Comparing to Eastern Tundra Bean Goose, Lesser White-fronted Geese and Greater White-fronted Geese were more sensitive to habitat changes. No significant correlations were observed between goose abundances and both mean water levels and sedge meadow areas. Results indicate that the variations in herbivorous goose abundances may be caused by changes in the NDVI of sedge meadows and the interval durations between sedge meadow exposure and goose arrival. The earlier flood recession can accelerate the exposure, growth, and withering of sedge meadows (low NDVI in late January), thereby creating unsuitable feeding conditions for the geese in the wintering seasons. These findings are important as efforts are made to protect these valuable species from the effects of human intervention, and in particular, the Three Gorges Dam project.
机译：中国东部的草食性鹅大多数在中国东部的洞庭湖越冬，人们越来越关注其栖息地的变化如何影响鹅的种群。使用一般线性回归分析了三种草食性鹅（东苔原豆鹅大雁，小白额鹅大雁和大白额鹅大雁额叶）的丰度变化与它们越冬栖息地之间的关系。 2002 / 2003-2014 / 2015年的东洞庭湖。三种草食性鹅的丰度波动与间隔持续时间的变化呈负相关（即，整个莎草草甸接触和鹅到达研究区域之间的天数），但与莎草草甸的归一化植被指数（NDVI）呈正相关。越冬的季节。与东部苔原豆鹅相比，小白额鹅和大白额鹅对生境变化更敏感。鹅的丰度与平均水位和莎草草甸面积之间未发现显着相关性。结果表明，草食鹅丰度的变化可能是由莎草草甸的NDVI的变化以及莎草草甸接触和鹅到达之间的间隔时间引起的。较早的洪水衰退可以加速莎草草甸的暴露，生长和枯萎（1月下旬NDVI较低），从而在冬季为鹅提供了不合适的饲养条件。这些发现非常重要，因为人们正在努力保护这些有价值的物种免受人类干预的影响，尤其是三峡大坝项目。

著录项

  • 来源
    《Regional Environmental Change》 |2017年第3期|879-888|共10页
  • 作者

    Zou Ye-Ai; Tang Yue; Xie Yong-Hong; Zhao Qi-Hong; Zhang Hong;

  • 作者单位

    Chinese Acad Sci, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China|Chinese Acad Sci, Inst Subtrop Agr, Dongting Lake Stn Wetland Ecosyst Res, Changsha 410125, Hunan, Peoples R China|East China Normal Univ, Shanghai Key Lab Urban Ecol Proc & Ecorestorat, Sch Life Sci, Shanghai 200062, Peoples R China;

    Chinese Acad Sci, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China|Chinese Acad Sci, Inst Subtrop Agr, Dongting Lake Stn Wetland Ecosyst Res, Changsha 410125, Hunan, Peoples R China;

    Chinese Acad Sci, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China|Chinese Acad Sci, Inst Subtrop Agr, Dongting Lake Stn Wetland Ecosyst Res, Changsha 410125, Hunan, Peoples R China;

    Hunan East Dongting Lake Natl Nat Reserve, Adm Bur, Yueyang 414000, Hunan, Peoples R China;

    Hunan East Dongting Lake Natl Nat Reserve, Adm Bur, Yueyang 414000, Hunan, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    East Dongting Lake; Habitat change; Herbivorous geese; Flood recession; Yangtze River; floodplain;

    机译：东洞庭湖;生境变化;食性鹅;洪灾;长江;洪泛区;长江;

相似文献

  • 外文文献
  • 中文文献
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