基于迁移意愿的动物迁移廊道修正——以德化县云豹为例

Revising the designed migration corridor based on animal's migration desire: a case study of clouded leopard (Neofelis nebulosa) in Dehua

针对人工设计的廊道未必是动物最终选择的迁移路径问题,从迁移意愿角度提出了新的解释。基于动物迁移意愿流与水流的相似性,提出了依托动物迁移适宜性图,利用水文分析模块量化并提取迁移意愿流的方法。以福建省德化县境内的国家I级保护动物云豹(Neofelis nebulosa)为研究对象,分析了其在两个保护区之间的迁移意愿流。结果表明:迁移意愿流穿越基于最小累积阻力法设计的迁移廊道,云豹从意愿流流出位置迁出廊道的可能性较大。可考虑在此处设置人工屏障,以引导云豹按照设计的廊道迁移。该方法对于自然保护规划和管理具有一定的借鉴意义。

Regarding the possible inconsistency between the actual corridor and the designed corridor,a new framework was put forward to improve the designed process from the perspective of the animals′ migration desire.In light of the similarity between the water flow and the flow of the animals′ migration desire,hydrological analysis was employed to quantify the intensity of the migration desire from the animals′ migration suitability.Then the model was applied for the design of clouded leopards′（Neofelis nebulosa） migration corridor in Dehua county.The result showed that the flow of clouded leopards′ migration desire crossed the corridor designed by model of Minimum Cumulative Resistance.A barrier was recommended to establish in the outlet of the migration desire flow in order to prevent the underside animal migration.The method is useful in ecosystem conservation planning and management.