A multistep approach to improving connectivity and co-use of spatial ecological networks in cities
A multistep approach to improving connectivity and co-use of spatial ecological networks in cities
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DOI：
10.1007/s10980-020-01159-6
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发表时间：
2021-01-12
影响因子：
5.2
通讯作者：
Corstanje, Ron
中科院分区：
文献类型：
--
作者：
Beaujean, Simon;Nor, Amal Najihah Muhamad;Corstanje, Ron
背景 生态网络是由相互关联的组成部分组成的系统，支持生物多样性、生态过程和生态系统服务。此类结构对于人类景观中的自然保护和人类福祉发挥着至关重要的作用。使用有效的模型和指标评估连通性是适当保护和改善这些生态网络的必要条件。 目标 本研究旨在提出一种新的方法，用于评估和模拟城市中物种保护（大蟾蜍；natterjack toad）和人类娱乐的连通性。 方法 该研究使用最低成本和电路模型相结合来确定比利时列日市的优先走廊。绿地、栖息地和相关运动参数是根据现有研究得出的：(i) 响尾蛇蟾蜍的发生、生态和生物学，以及 (ii) 对城市行人的人类行为研究。将这两个模型结合起来，可以通过使用地图上的优先走廊可视化的两种不同指标来评估这两个物种的连通性。结果连通性评估确定缺乏连通性是导致源地点之一的黑条蟾蜍灭绝的潜在途径。结论这项研究提供了示例，说明如何结合最低成本和电路模型有助于改善城市生态网络，并证明了此类模型对于自然保护和保护的有用性。 城市规划。
Context Ecological networks are systems of interconnected components that support biodiversity, ecological processes and ecosystem services. Such structures play a crucial role for nature conservation and people well-being in anthropogenic landscapes. Assessing connectivity by using efficient models and metrics is a sine qua non condition to preserve and improve appropriately these ecological networks.Objectives This study aims to present a novel methodological approach to assess and model connectivity for species conservation (Bufo calamita; the natterjack toad) and human recreation in the city.Methods The study used a combination least cost and circuit models to identify priority corridors in the City of Liege, Belgium. Green areas, habitats and relevant movement parameters were derived based on existing studies around (i) the occurrence, ecology and biology of the natterjack toad and (ii) human behavioural studies on urban pedestrians. Combining the two models allowed the assessment of connectivity for both species via two different metrics visualised using priority corridors on maps.Results The connectivity assessments identified lack of connectivity as the potential route to extinction of natterjack toads at one of the source sites.Conclusions This study provides examples of how combining least cost and circuit models can contribute to the improvement of urban ecological networks and demonstrates the usefulness of such models for nature conservation and urban planning.