There and back again? Combining habitat suitability modelling and connectivity analyses to assess a potential return of the otter to Switzerland
There and back again? Combining habitat suitability modelling and connectivity analyses to assess a potential return of the otter to Switzerland
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DOI：
10.1111/acv.12033
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发表时间：
2013-10-01
影响因子：
3.4
通讯作者：
Guisan, A.
中科院分区：
文献类型：
--
作者：
Cianfrani, C.;Maiorano, L.;Guisan, A.
在经历了20世纪初的稳步下降之后，西欧的几种陆生食肉动物最近通过重新引入或自然重新定居的方式得到了恢复。由于这些物种需要很大的空间，并可能与人类活动发生冲突，确保它们的恢复需要实施养护和管理措施，以解决这一问题的环境、景观和社会层面。这种综合管理的例子很少。以瑞士水獭(Lutra Lutra)为例，我们提出了一个多步骤的方法，允许(1)确定具有潜在适宜栖息地的地区，(2)评估其连通性，(3)从邻国的种群中验证物种重新定居的潜力。我们表明，尽管该物种有合适的栖息地，瑞士境内的结构连通性水平令人满意，但与邻近种群的连通性水平对于确定有利于实地恢复物种的战略的优先次序至关重要。这项研究是第一个将不同尺度的生境适宜性和连通性评估与其他因素结合在一起的多步物种恢复评估的例子。
After a steady decline in the early 20th century, several terrestrial carnivore species have recently recovered in Western Europe, either through reintroductions or natural recolonization. Because of the large space requirements of these species and potential conflicts with human activities, ensuring their recovery requires the implementation of conservation and management measures that address the environmental, landscape and social dimensions of the problem. Few examples exist of such integrated management. Taking the case of the otter (Lutra lutra) in Switzerland, we propose a multi-step approach that allows to (1) identify areas with potentially suitable habitat, (2) evaluate their connectivity, (3) verify the potentiality of the species recolonization from populations in neighbouring countries. We showed that even though suitable habitat is available for the species and the level of structural connectivity within Switzerland is satisfactory, the level of connectivity with neighbouring populations is crucial to prioritize strategies that favour the species recovery in the field. This research is the first example integrating habitat suitability and connectivity assessment at different scales with other factors in a multi-step assessment for species recovery.