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首页> 外文期刊>Conservation Biology >Designing a coherent ecological network for large mammals in northwestern Europe
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Designing a coherent ecological network for large mammals in northwestern Europe

机译：为欧洲西北部的大型哺乳动物设计一个连贯的生态网络

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In densely populated northwestern Europe, native large mammals are confronted with a very fragmented landscape, and most of the areas they inhabit are island-like reserves threatened with total isolation from other reserves. The only way to counteract the threat of further decline in the numbers of large-mammal species is to restore their habitats. The appropriate size of future reserves could be estimated from the habitat requirements of wild ungulates that are considered key species for ecosystem functioning. The species selected to guide the design of large nature reserves in northwestern Europe is the red deer (Cervus elaphus) because of its widespread distribution, key role in ecosystem functioning, and home-range size. We describe a network analysis of the Netherlands, Belgium, and adjacent parts of France and Germany, performed with the LARCH landscape ecology model, that was conducted in order to identify the structure of the ecological network for red deer and the spatial connectivity of the landscape. The resulting maps show areas that could support viable populations and indicate habitat areas that will support persistent populations only if they are in a network of linked habitats. The gaps and barriers that prevent connectivity in such networks guide the design of effective corridors to increase spatial connectivity. The results of our analysis can be used for policy decisions on nature conservation and spatial planning, and the method is applicable to other regions and species. [References: 47]
机译：在欧洲西北部人口稠密的地区，本土大型哺乳动物面临非常零散的景观，它们所居住的大多数地区都是岛屿状的保护区，面临着与其他保护区完全隔离的威胁。应对大哺乳动物物种数量进一步减少的威胁的唯一方法是恢复其栖息地。可以从被认为是生态系统功能关键物种的野生有蹄类动物的栖息地需求中估计未来储备的适当大小。由于其分布广泛，在生态系统功能中的关键作用和家庭范围的大小，因此被选为指导欧洲西北部大型自然保护区设计的物种是马鹿（Cervus elaphus）。我们描述了使用LARCH景观生态模型对荷兰，比利时以及法国和德国邻近地区进行的网络分析，该分析旨在确定马鹿生态网络的结构以及景观的空间连通性。生成的地图显示了可以支持生存人口的区域，并指出了只有在相连的生境网络中才能够支持持久人口的生境区域。阻碍此类网络连通性的差距和障碍指导有效走廊的设计，以增加空间连通性。我们的分析结果可用于自然保护和空间规划的政策决策，该方法适用于其他地区和物种。 [参考：47]

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