Map visualisation service (WMS) of the dataset: Sensitivity maps — Maps Natural regions — Nyctalus_noctula (Common name)

Sensitivity maps made by the ODONAT Grand Est network in 2018-2019. The distribution of the species is based on recent occurrence data (1999-2018 or 2009-2018 by species). These are the natural regions in which at least one observation of the species has been made in the recent period as well as natural regions where the species is highly suspected (i.e. experts) or benefits from older data. In each of the natural regions with recent non-marginal observations, this presence is represented by the calculation of the proportion of meshes 1 x 1 km in which the species was observed. For an explanation of the method of calculation, refer to the explanation sheet of the Natural Regions maps. Natural regions identify territories in which abiotic conditions (relief, geology, climate...) are relatively homogeneous. In fact, the observation of a species in a natural region (even in one location) makes it possible to strongly assume the existence of other favourable habitats elsewhere in the natural region. Any comments shall be taken into account: these may be implanted populations, but also erratic individuals. This layer represents the state of knowledge at the time of its realisation, it should not be considered exhaustive. The presence of the species outside the identified areas is possible. Refer to the map reading instructions as well as PDF cards for more information.本数据集为ODONAT大东部大区网络（ODONAT Grand Est）于2018至2019年间制作的物种敏感性分布图。本数据集的物种分布数据基于近期物种出现记录：不同物种分别采用1999-2018年或2009-2018年的观测数据。本次地图覆盖的自然区域（natural regions）包含两类：一是近期存在至少一次该物种观测记录的区域，二是经专家高度推测存在该物种，或依托较老观测数据支撑的区域。对于存在近期非边缘观测记录的自然区域，该物种的存在情况以区域内被观测到该物种的1×1公里调查网格（meshes）占比来体现。若需了解具体计算方法，请参阅《自然区域地图》的说明文档。自然区域是指非生物条件（地形、地质、气候等）相对均一的地理单元。实际上，只要在某自然区域内存在一处物种观测记录（即便仅单个点位），即可较强地推断该区域内其他区域也存在适宜该物种栖息的生境。所有相关标注均需纳入考量：此类标注既可能代表人工定植的种群，也可能是偶发的零散个体。本图层仅反映制作完成时的认知现状，不应被视为涵盖所有潜在分布区；在本图层划定的区域之外，仍有可能存在该物种的分布。如需获取更多信息，请参阅地图读图指南及配套PDF卡片。