Dataset Direct Download Service (WFS): Sensitivity Maps — Maps Natural Regions — Somatochlora_arctica (Arctic Chlorocorduli)

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.本数据集为奥多纳大东部地区网络（ODONAT Grand Est）于2018—2019年制作的物种分布敏感性分布图。 物种分布信息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。 该数据集涵盖两类区域：一是近期内至少开展过一次该物种观测的自然区域；二是经专家高度疑似存在该物种，或存有较早观测记录的自然区域。 对于存有近期非边缘观测记录的自然区域，通过统计该区域内观测到目标物种的1×1千米网格占比，来表征物种在该区域的分布情况。如需了解计算方法的详细说明，请参阅《自然区域地图说明手册》。 自然区域指非生物环境（地形、地质、气候等）相对均一的区域。实际上，只要在某自然区域内的任一地点观测到目标物种，即可高度推定该区域内其他地点也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，既包括人工引种种群的观测，也包含偶见个体的记录。 本图层仅反映制作完成时的认知水平，不应被视为覆盖全面的数据集，在本数据集划定的区域之外，仍有可能存在该物种的分布区域。 如需获取更多信息，请参阅数据卡读取说明及配套PDF数据卡。