Sensitivity Maps — Maps Natural Regions — Hyla_arborea (Green Rainette)

Sensitivity maps made by the ODONAT Grand Est network in 2018-2019. The distribution of the species is represented from recent occurrence data (1999-2018 or 2009-2018 by species). These are natural areas in which at least one observation of the species has been carried out in the recent period, as well as natural regions where the species is highly suspected (i.e. experts) or has older data. In each of the natural regions with recent non-marginal observations, this presence is represented by the calculation of the proportion of 1 x 1 km meshes in which the species was observed. For an explanation of the method of calculation, refer to the Natural Regions Map Explanation Sheet. Natural regions identify areas in which abiotic conditions (relief, geology, climate...) are relatively homogeneous. In fact, the observation of a species in a natural region (even at a single location) provides a strong presumption of other favourable habitats elsewhere in the natural region. Any observations shall be taken into account: they can 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 card reading instructions as well as PDF cards for more information.2018至2019年由大东部奥多纳特（ODONAT Grand Est）观测网络制作的物种敏感性分布图。本数据集的物种分布基于最新的物种出现记录（针对不同物种分别采用1999-2018年或2009-2018年的观测数据）。 此类区域包含两类：一是近期内至少开展过一次该物种观测的自然区域，二是经专家高度推测存在该物种或存有较老观测记录的自然地理区。 对于存有近期非边缘观测记录的自然地理区，该物种的存在情况通过统计区域内观测到该物种的1×1公里网格单元占比来表征。如需了解具体计算方法，请参阅《自然地理区地图说明手册》。 自然地理区指非生物环境条件（地形、地质、气候等）相对均一的区域。 实际上，只要在某自然地理区内观测到该物种（即便仅单个点位），即可高度推定该自然地理区内其他区域亦存在适宜该物种生存的栖息地。 所有观测记录均纳入统计范畴：既包括人工引种的种群，也包括偶见的个体。 本图层仅反映其制作完成时的认知状态，不应被视为详尽无遗的数据集。物种有可能存在于本数据集所划定区域之外。 如需获取更多信息，请参阅卡片读取说明文档及配套PDF卡片。