[在Elephas maximus活动区建立息地网络]
Zi-Hao Xie1, Wen Wei1, Wei-Xiong Luo2,3
1Faculty of Architecture and Urban Planning, Kunming University of Science and Technology, Kunming 650504, China.
概括
这项研究绘制了亚洲大象 (Elephas maximus) 在中国的息地,确定了158个来源和439个走廊. 保护关键的生态障碍和紧点对于息地网络连接和生物多样性保护至关重要.
科学领域:
- 保护生物学 保护生物学
- 空间生态学空间生态学
- 景观生态学 景观生态学
背景情况:
- 生物多样性保护的战略进步需要保护区的精确空间识别.
- 定义拟议的亚洲大象国家公园的空间范围依赖于了解旗舰物种的息地网络.
- 亚洲大象 (Elephas maximus) 是关键的物种,使得它们的息地分析对区域保护至关重要.
研究的目的:
- 为了确定和绘制亚洲大象的息地网络在Xishuangbanna,Pu'er和Lincang.
- 建立一个科学基础来定义拟议的亚洲大象国家公园的空间范围.
- 为提高息地连接性和生物多样性保护提供差异化管理策略的信息.
主要方法:
- 将InVEST模型与形态空间模式分析 (MSPA) 集成,以确定息地来源.
- 选择了六个生态阻力因子,并使用重法来确定重量,构建一个阻力表面.
- 应用了Linkage Mapper工具来提取息地走廊,生态障碍点和紧缩点.
主要成果:
- 确定了158个息地来源,覆盖面积约为23,000平方公里,核心区域集中在西苏安巴纳-普埃尔边界沿线.
- 提取了439个息地走廊,总长4616.58公里,这表明对区域大象移动的有效支持.
- 位于Lincang和Pu'er的扰乱地区的生态屏障点,以及Menghai,Menglun和南部Pu'er的紧缩点.
结论:
- 已确定的息地网络,包括来源和走廊,对亚洲大象活动和区域连接至关重要.
- 优先保护生态障碍和紧点对于保持息地网络稳定性和连接性至关重要.
- 核心区域和敏感区域的差异化管理将增强亚洲大象息地网络对更广泛的生物多样性保护的保护效应.
相关概念视频
00:53Migration
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
02:02Ecological Niches
All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
02:31Habitat Fragmentation
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.