Indicative distribution map for Ecosystem Functional Group FM1.2 Permanently open riverine estuaries and bays

This archive contains indicative distribution maps and profiles for FM1.2 Permanently open riverine estuaries and bays, a ecosystem functional group (EFG, level 3) of the IUCN Global Ecosystem Typology (v2.0). Please refer to Keith et al. (2020) for details. The descriptive profiles provide brief summaries of key ecological traits and processes, maps are indicative of global distribution patterns, and are not intended to represent fine-scale patterns. The maps show areas of the world containing major (value of 1, coloured red) or minor occurrences (value of 2, coloured yellow) of each ecosystem functional group. Minor occurrences are areas where an ecosystem functional group is scattered in patches within matrices of other ecosystem functional groups or where they occur in substantial areas, but only within a segment of a larger region. Given bounds of resolution and accuracy of source data, the maps should be used to query which EFG are likely to occur within areas, rather than which occur at particular point locations. Detailed methods and references for the maps are included in the profile (xml format).本归档文件包含FM1.2永久开放河流河口与海湾的示意性分布图与特征概况，该类群属于世界自然保护联盟（International Union for Conservation of Nature, IUCN）全球生态系统分类体系（v2.0）中的三级生态功能群（Ecosystem Functional Group，简称EFG）。详细信息请参阅Keith等人（2020）的研究成果。 本特征概况简要总结了该生态功能群的关键生态特征与生态过程；分布图仅用于示意全球分布格局，而非精细尺度的分布特征。图中以红色（赋值为1）标记各生态功能群的主要分布区，以黄色（赋值为2）标记次要分布区。次要分布区指该生态功能群以斑块状散布于其他生态功能群的基质中，或仅在大区域的局部片段内呈大面积分布的区域。鉴于源数据的分辨率与精度限制，本分布图仅应用于查询某区域内可能存在的生态功能群类型，而非特定点位的实际分布情况。该分布图的详细方法与参考文献已收录于xml格式的特征概况文档中。