Community composition (relative abundance) separated by native and cryptogenic, and introduced species of each community from coastal sites across a geographic gradient spanning the sub-arctic to the tropics from 2015-2017

<p>The main data table served from this Dataset Metadata Page includes data columns \"Species\" and \"Abundance\"&nbsp;&nbsp;(See \"Parameters\" section for more details about columns in the main data table).&nbsp; An alternate format of this dataset is available in the \"Data Files\" section which has an abundance column per species with a form of the species name as the column name.&nbsp;<br /> <br /> The alternate data format has two separate tables divided by whether it is for introduced species or native and cryptogenic species.&nbsp; That information is included in the main data table for this dataset in column&nbsp;\"Species_status_type.\"</p>本数据集元数据页面提供的主数据表包含“物种（Species）”与“丰度（Abundance）”两列数据，主数据表的列项详细说明请参见“参数（Parameters）”章节。本数据集另有备用格式，可在“数据文件（Data Files）”章节获取，该格式以各物种的名称作为列名，为每个物种单独设置丰度列。 该备用数据格式依据物种类型分为两个独立数据表，划分依据为物种属于引入物种（introduced species），还是本土物种与隐源物种（cryptogenic species）。该分类信息已收录于本数据集主数据表的“物种状态类型（Species_status_type）”列中。