Indicative distribution map for Ecosystem Functional Group M3.2 Submarine canyons

This archive contains indicative distribution maps and profiles for M3.2 Submarine canyons, 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).

本存档包含M3.2海底峡谷（Submarine Canyons）的示意性分布图与描述性概况文档，该类群为国际自然保护联盟（IUCN）全球生态分类体系（v2.0）的生态功能群（Ecosystem Functional Group，EFG，第3级）。详情请参阅Keith等人（2020）的研究文献。

本描述性概况文档对核心生态特征与生态过程进行了简要概述；分布图仅用于展示全球分布格局，而非精细尺度的分布细节。图中标记了全球范围内各生态功能群的主要分布区（数值为1，以红色标注）与零星分布区（数值为2，以黄色标注）。其中，零星分布区指生态功能群以斑块形式零散分布于其他生态功能群的基质中，或虽覆盖较大面积但仅局限于更大区域的局部片段内。鉴于源数据的分辨率与精度存在限制，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。该分布图的详细编制方法与参考文献均收录于xml格式的概况文档中。