...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ocean & coastal management >A framework on habitat connectivity among Taiwan's wetlands for overwintering Black-faced Spoonbill
【24h】

A framework on habitat connectivity among Taiwan's wetlands for overwintering Black-faced Spoonbill

机译：台湾湿地越冬栖息地连通性的框架

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

More than half of all Black-faced Spoonbills, a threatened species, overwinter throughout the coastal areas of Taiwan. We used a geographic information system to develop a methodology of quantifying landscape connectivity to examine the quality and linkage of potential spoonbill habitat in Taiwan. We used number of overwintering years, maximum number of spoonbills, habitable area, and a landscape development intensity index to calculate the habitat value and connectivity of 23 selected wetlands during two different periods and to determine the least-cost path of the spoonbill for moving among habitats. During the first period (1984-2003), habitat and connectivity values were greatest in the Zengwun Estuary, confirming that it was the most suitable habitat. In the second period (2011-2014), the highest habitat value also occurred in the Zengwun Estuary, but the highest connectivity value shifted to the Sihcao wetland. The habitat and connectivity values in the second period were generally higher than those in the first period. However, in the Zengwun Estuary and Sihcao wetlands, the maximum number of spoonbills decreased as the population spread to surrounding wetlands, suggesting that habitat conditions declined in the two wetlands due to an increase in anthropogenic disturbance. The habitable wetlands with adequate connectivity were divided into three geographic groups: southwestern, northeastern, and northwestern. The habitat link of the southwestern group increased after spoonbills had been observed in several new wetlands. However, the links within the northeastern and northwestern groups decreased, as spoonbills were no longer observed in several wetlands in each group. Our results suggest that the conservation of wetlands in gap areas would improve their habitat condition and connectivity. This framework can be applied to other species and serves as a baseline for habitat linkage, corridor planning, and refuge design. (C) 2015 Elsevier Ltd. All rights reserved.
机译：濒临灭绝的黑脸琵鹭有一半以上在台湾沿海地区越冬。我们使用地理信息系统开发了一种量化景观连通性的方法，以研究台湾潜在的琵鹭栖息地的质量和联系。我们使用了越冬年数，最大的琵鹭数量，可居住区域以及景观发展强度指数来计算两个不同时期的23个选定湿地的栖息地价值和连通性，并确定了琵鹭在其中移动的成本最低的路径。栖息地。在第一时期（1984-2003年），增旺河口的栖息地和连通性值最大，这证明它是最合适的栖息地。在第二个时期（2011-2014年），增旺河口也出现了最高的栖息地价值，但最高的连接性价值转移到了西草湿地。第二阶段的生境和连通性值通常高于第一阶段。但是，在曾旺河口和始草湿地，随着人口向周围湿地扩散，琵鹭的最大数量减少，这表明这两个湿地的栖息地条件由于人为干扰的增加而下降。具有足够连通性的可居住湿地分为三个地理区域：西南，东北和西北。在几个新的湿地中观察到琵鹭后，西南群的栖息地联系增加了。但是，东北组和西北组之间的联系减少了，因为在每组的几个湿地中都不再观察到琵鹭。我们的研究结果表明，在间隙地区保护湿地将改善其栖息地条件和连通性。该框架可以应用于其他物种，并作为栖息地联系，走廊规划和避难所设计的基准。 （C）2015 Elsevier Ltd.保留所有权利。

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