Indicative distribution map for Ecosystem Functional Group SM1.3 Sea caves

This archive contains indicative distribution maps and profiles for <strong>SM1.3 Sea caves</strong>, a ecosystem functional group (EFG, level 3) of the IUCN Global Ecosystem Typology (v2.0). Please refer to Keith <em>et al.</em> (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).本数据集归档文件包含**SM1.3海洞（SM1.3 Sea caves）**的示意性分布图与概况文档，该类群属于世界自然保护联盟（International Union for Conservation of Nature, IUCN）全球生态系统分类法（版本2.0）中的三级生态功能群（Ecosystem Functional Group, EFG）。相关细节请参阅Keith等人（2020）的研究成果。 概况文档简要总结了该类群的关键生态特征与生态过程；分布图仅用于展示全球分布格局，并非精细尺度的分布情况。 本分布图标注了全球范围内各生态功能群的主要分布区（赋值为1，以红色标注）与次要分布区（赋值为2，以黄色标注）。其中，次要分布区指生态功能群以斑块状零散分布于其他生态功能群的基质中，或仅在大区域的局部范围内形成大面积分布的区域。 鉴于源数据的分辨率与精度限制，本分布图仅可用于查询某区域内可能存在的生态功能群，而非特定点位的分布情况。该分布图的详细制作方法与参考文献均收录于XML格式的概况文档中。