Designing a Conservation Landscape for Tigers in Human‐Dominated Environments
Designing a Conservation Landscape for Tigers in Human‐Dominated Environments
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DOI：
10.1111/j.1523-1739.2004.00145.x
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发表时间：
2004-06
影响因子：
6.3
通讯作者：
E. Wikramanayake;Meghan W. McKnight;E. Dinerstein;A. Joshi;B. Gurung;David E. Smith
中科院分区：
文献类型：
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作者：
E. Wikramanayake;Meghan W. McKnight;E. Dinerstein;A. Joshi;B. Gurung;David E. Smith
摘要：小型、孤立的保护区中的野生动物种群面临着生存的遗传和人口威胁。为了增加长期持续存在的可能性，生物学家提倡集合种群管理，其中繁殖亚种群作为源库受到保护。从源池分散的动物增加了集合种群在更大范围内持续存在的可能性。我们使用基于地理信息系统 (GIS) 的成本距离模型设计了喜马拉雅山麓的保护景观，以管理亚洲最大的捕食者老虎（Panthera tigris）的集合种群。该模型基于 30 年对老虎的实地研究、最近的卫星图像以及该地区十年的缓冲区恢复的数据。我们使用该模型（1）确定老虎潜在的扩散走廊； (2) 确定战略过境避难所； (3) 就保护区外土地管理和恢复提出建议，以增强老虎廊道的潜力。该工具可以帮助设计人类主导环境中其他濒临灭绝的广泛物种的保护景观。
Abstract: Wildlife populations in small, isolated reserves face genetic and demographic threats to their survival. To increase the probability of long‐term persistence, biologists promote metapopulation management, in which breeding subpopulations are protected as source pools. Animals that disperse from the source pools increase the probability of persistence of the metapopulation across the greater landscape. We used a geographic information system (GIS)–based, cost‐distance model to design a conservation landscape along the Himalayan foothills for managing a metapopulation of Asia's largest predator, the tiger (Panthera tigris). The model is based on data from 30 years of field research on tigers, recent satellite imagery, and a decade of buffer‐zone restoration in this region. We used the model to (1) identify potential dispersal corridors for tigers; (2) identify strategic transit refuges; and (3) make recommendations for off‐reserve land management and restoration to enhance the potential of corridors for tigers. This tool can aid the design of conservation landscapes for other endangered, wide‐ranging species in human‐dominated environments.