Dataset Direct Download Service (WFS): Sensitivity Maps — Weighted Mail Cards Non-sensitive — Alcedo atthis (Martin-fisherman d’Europe)
收藏资源简介:
Sensitivity map 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 the 10 x 10 km Lambert 93 meshes in which at least one observation of the species has been made in the recent period. In each of these 10 x 10 km meshes, this presence is represented by the calculation of the proportion of 1 x 1 km meshes in which the species was observed. 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.
本敏感度分布图由ODONAT大东部大区(ODONAT Grand Est)监测网络于2018—2019年间编制完成。 该物种的分布信息基于近年出现记录生成,不同物种对应1999—2018年或2009—2018年的观测数据。 本次统计的范围为近期内存在至少1次该物种观测记录的、采用兰伯特93(Lambert 93)坐标系的10×10千米格网单元;在每个此类格网中,通过统计其中已记录该物种的1×1千米格网占比,来表征该物种的存在状况。 所有观测记录均纳入统计范畴,既包括人工定植种群,也包括偶见个体。 本图层仅反映编制完成时的研究认知现状,不应被视为完整详尽的数据集;该物种有可能出现在本图层划定范围之外的区域。 如需获取更多信息,请参阅卡片读取说明及相关PDF卡片文档。



