世界上最大的跨边界保护区中非洲象的景观连通性:多尺度合作评估

IF 5 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Journal of Applied Ecology Pub Date : 2024-09-08 DOI:10.1111/1365-2664.14746
Robin Naidoo, Piet Beytell, Angela Brennan, John Carter, Kerryn D. Carter, Simon Chamaillé-Jammes, Brian Chilambe, Richard Hoare, Novald Iiyambo, Donovan Jooste, Malvern Karidozo, J. Werner Kilian, Daphine Madhlamoto, Tinaapi Hilary Madiri, Graham McCulloch, Norman Monks, Isaac Mudimba, Nobesuthu Ngwenya, Nyambe Nyambe, Loki Osborn, Michael Pelham, Letlhogonolo Phologo, Robert Reid, Miguel Savituma, Maurice Schutgens, Twakundine Simpamba, Stuart Slabbert, Amanda Stronza, Russell Taylor, Arnold Tshipa, Anna Songhurst
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引用次数: 0

摘要

景观连通性可在不同尺度上发挥作用,具体取决于相关区域的地理位置以及所考虑的重点物种或生态过程。然而,大多数连通性研究通常只关注单一尺度,就基于阻力的连通性建模而言,通常是整个景观或保护区(PA)网络。这种大尺度、单一尺度的研究重点可能会遗漏一些在较小尺度上对连通性非常重要的区域,而这些区域可以通过观察到的动物运动记录下来,无需借助全景观统计建模和外推方法。在这里,我们利用观察到的动物运动而不是传统的阻力面模型,描述了三种不同尺度(局部/微观、PA 间和景观范围/宏观)的景观连通性,为南部非洲卡万戈-赞比西河跨边界保护区(KAZA)的非洲象(Loxodonta africana)绘制了连通性保护蓝图。这项分析基于一个庞大的高分辨率 GPS 跟踪数据库,该数据库包含近 300 头被标记的大象及其相关象群的约 400 万个 GPS 位置。我们的研究结果表明,大象对微型走廊的高保真使用通常(但并不完全)与向水域的定向移动有关,而且往往是在人类活动频繁的情况下。连接 KAZA 核心保护区的移动路径更长且多变,一些路径被引导到狭窄的使用区域,而另一些则分散在更大的次地貌中。在最大尺度上,结合所有使用过的景观网格单元进行的网络分析显示,有几组大规模的移动走廊将 KAZA 的遥远部分连接起来。综合与应用:我们的三种尺度分析揭示了不同地域的连通性保护优先事项,这些优先事项共同有助于确保 KAZA 最大居民的功能连通性。每个尺度都需要一套相互关联的保护干预措施,而对数据收集稀少的地区和其他受保护物种的进一步研究可能会揭示每个尺度的其他连通性优先事项。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Landscape connectivity for African elephants in the world's largest transfrontier conservation area: A collaborative, multi-scalar assessment

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来源期刊
Journal of Applied Ecology
Journal of Applied Ecology 环境科学-生态学
CiteScore
9.80
自引率
3.50%
发文量
229
审稿时长
4.5 months
期刊介绍: Journal of Applied Ecology publishes novel, high-impact papers on the interface between ecological science and the management of biological resources.The editors encourage contributions that use applied ecological problems to test and develop basic theory, although there must be clear potential for impact on the management of the environment.
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