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首页> 外文期刊>Journal for nature conservation >An integrated method to create habitat suitability models for fragmented landscapes
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An integrated method to create habitat suitability models for fragmented landscapes

机译：一种为零散景观创建栖息地适宜性模型的综合方法

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摘要

Given the pervasive influence of human induced habitat fragmentation in ecological processes, landscape models are a welcome advance. The development of GIS software has allowed a greater use of these models and of analyses of the relationship between species and habitat variables. Habitat suitability models are thus theoretical concepts that can be used for planning in fragmented landscapes and habitat conservation. The most commonly used models are based on single species and on the assignment of suitability values for some environmental variables. Generally the cartographic basis for modeling suitability are thematic maps produced by a Boolean logic. In this paper we propose a model based on a set of focal species and on maps produced by a fuzzy classification method. Focal species, selected by an expert-based approach, provide a practical way of extending the scope of habitat suitability models to the conservation of biodiversity at landscape scale. The utilisation of a classification method that applies a continuity criterion may allow more consideration of the connectivity of an area because it allows a better detection of ecological gradients within a landscape. We applied this methodology to the Tuscany region focusing on terrestrial mammals. Performing a fuzzy classification we produced five land cover maps and through image processing operations we obtained a suitability model which applies a continuity criterion. The resulting suitability fuzzy model seems better for the study of connectivity and fragmentation, especially in areas with high spatial complexity.
机译：考虑到人为诱发的栖息地破碎化在生态过程中的普遍影响，景观模型是一个可喜的进步。地理信息系统软件的开发已允许更多地使用这些模型以及对物种与生境变量之间的关系进行分析。因此，栖息地适应性模型是可用于规划零散景观和栖息地保护的理论概念。最常用的模型基于单个物种，并且基于某些环境变量的适用性值。通常，建模适用性的制图基础是布尔逻辑生成的专题图。在本文中，我们提出了一种基于一组焦点物种和通过模糊分类方法生成的地图的模型。通过基于专家的方法选择的重点物种，为将栖息地适应性模型的范围扩展到景观规模的生物多样性保护提供了一种实用的方法。应用适用于连续性标准的分类方法的使用可以允许更多地考虑区域的连通性，因为它可以更好地检测景观内的生态梯度。我们将此方法应用于关注陆地哺乳动物的托斯卡纳地区。通过进行模糊分类，我们制作了五张土地覆盖图，并通过图像处理操作获得了适用于连续性准则的适用性模型。由此产生的适用性模糊模型似乎对于连通性和碎片化的研究似乎更好，尤其是在空间复杂性高的区域。

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