Effective corridor width: linking the spatial ecology of wildlife with land use policy
Effective corridor width: linking the spatial ecology of wildlife with land use policy
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DOI：
10.1007/s10344-020-01385-y
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发表时间：
2020-07-29
影响因子：
2
通讯作者：
Teichman, Kristine J.
中科院分区：
文献类型：
--
作者：
Ford, Adam T.;Sunter, Emily J.;Teichman, Kristine J.
野生动物走廊是一种政策工具，通过人类改造的景观来保持或恢复连通性。虽然走廊几十年来一直是野生动物保护的一个重要概念，但几乎没有证据指导其设计。具体来说，宽度是走廊最有争议的尺寸之一，因为它经常限制工业，住宅或娱乐扩展。建立在描述野生动物如何避免基础设施或人的影响区和飞行起始距离的概念上，我们提出了一个概念性的方法来设计和评估野生动物走廊的管理有效性，通过一个概念，我们定义为有效的走廊宽度。有效走廊宽度是减少人类对动物通过走廊运动的影响所需的最小空间尺寸。我们搜索的案例研究记录的影响范围和飞行起始距离从休闲步道和住宅开发的四种食肉动物：黑熊，灰熊（棕色）熊，灰狼，和美洲狮。从这些研究中，我们综合信息的有效走廊宽度，从3000至6000米的住宅区和400至1000米的小径，这取决于物种。我们在加拿大阿尔伯塔的一个案例研究中研究了有效的走廊宽度，在那里，关于指定野生动物走廊的适当宽度的争论已经持续了几十年。我们的分析是朝着制定强大的，经验得出的指导方针，设计和管理野生动物走廊的一步。
Wildlife corridors are a policy tool to maintain or restore connectivity through human-modified landscapes. While corridors have been an important concept in wildlife conservation for decades, there is little evidence to guide their design. Specifically, width is one of the most contentious dimensions of corridors because it often limits industrial, residential, or recreational expansion. Building on concepts that describe how wildlife avoid infrastructure or people-zone of influence and the flight initiation distance-we present a conceptual approach to design and assess the management effectiveness of wildlife corridors through a concept we define as effective corridor width. The effective corridor width is the minimum spatial dimension needed to abate human influence on animal movement through the corridor. We searched for case studies documenting the zone of influence and the flight initiation distance from recreational trails and residential development for four species of carnivore: black bears, grizzly (brown) bears, gray wolves, and cougars. From these studies, we synthesized information on the effective corridor width, which varied from 3000 to 6000 m for residential areas and 400 to 1000 m for trails, depending on the species. We examined the effective corridor width in a case study from Alberta, Canada, where debate over the appropriate width of designated wildlife corridors has been ongoing for decades. Our analysis is a step towards developing robust, empirically derived guidelines for designing and managing wildlife corridors.