...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ecological research >Characterizing the importance of habitat patches in maintaining landscape connectivity for Tibetan antelope in the Altun Mountain National Nature Reserve, China
【24h】

Characterizing the importance of habitat patches in maintaining landscape connectivity for Tibetan antelope in the Altun Mountain National Nature Reserve, China

机译：表征栖息地斑块对维持中国阿尔敦山国家级自然保护区藏羚羊景观连通性的重要性

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

Connectivity of habitat patches is crucial for wildlife dispersal and survival, and identifying patches with high importance for maintaining connectivity can aid effective wildlife management. Knowledge of the habitat distribution of the Tibetan antelope in the Altun Mountain National Nature Reserve, which is essential for connectivity analysis, remains limited. We analyzed potential habitat distribution and priority patches using GIS-based habitat suitability modeling with three weighting factors and evaluated the connectivity of habitat patches under four dispersal distance scenarios. Patches with high habitat suitability covered 25.39 % of the total area, and these patches were selected for connectivity analysis as resource patches. Connectivity analysis indicated that, although the overall probability of connectivity (PC) showed an upward trend with increasing dispersal distance, the importance of each patch varied considerably under different dispersal distance scenarios. Transfer analysis of patch numbers between different importance levels revealed that the number of patches becoming less important was higher than the number of patches becoming more important when dispersal distance increased. In addition, nine patches covering 38.49 % of the suitable habitat area were identified as priority patches, in particular the patches near the Kardun and the Karchuka inspection stations. We also found that the habitat distribution of the Tibetan antelope obtained from the suitability model matched the population distribution determined by a field survey. Correlation analysis between patch area and the percentage of PC index value loss (dPC) revealed that the larger patches in this region were more likely to be important for maintaining connectivity.
机译：栖息地斑块的连通性对于野生生物的扩散和生存至关重要，而识别对维持连通性具有重要意义的斑块可以帮助有效地进行野生生物管理。对于连通性分析必不可少的关于阿尔通山国家自然保护区藏羚羊的栖息地分布的知识仍然有限。我们使用具有三个权重因子的基于GIS的栖息地适宜性模型分析了潜在的栖息地分布和优先斑块，并评估了四种分散距离情况下栖息地斑块的连通性。具有高栖息地适应性的补丁覆盖了总面积的25.39％，这些补丁被选作连通性分析作为资源补丁。连通性分析表明，尽管连通性的总体概率（PC）随着分散距离的增加而呈上升趋势，但在不同的分散距离情况下，每个补丁的重要性差异很大。不同重要性级别之间的补丁数量转移分析表明，随着散布距离的增加，重要性降低的补丁数量要大于重要性更高的补丁数量。此外，确定了覆盖适当栖息地面积38.49％的9个斑块为优先斑块，特别是Kardun和Karchuka检查站附近的斑块。我们还发现，从适宜性模型获得的藏羚羊的栖息地分布与实地调查确定的种群分布相匹配。补丁面积与PC索引值损失（dPC）百分比之间的相关分析表明，该区域中较大的补丁对保持连接性更重要。

著录项

  • 来源
    《Ecological research》 |2014年第6期|1065-1075|共11页
  • 作者

    Haidi Zhao; Shiliang Liu; Shikui Dong; Xukun Su; Qi Liu; Li Deng;

  • 作者单位

    School of Environment, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China;

    School of Environment, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China;

    School of Environment, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China;

    School of Environment, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China;

    School of Environment, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China;

    School of Environment, Beijing Normal University, 19 Xinjiekouwai Street, Beijing 100875, China;

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

    Landscape connectivity; Habitat suitability modeling; PC index; Dispersal distance; Priority patch;

    机译：景观连通性;生境适应性建模;PC指数分散距离;优先补丁;

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