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"Species（物种）"与"Abundance（丰度）"两个数据列，主数据表的列项详情可参见"Parameters（参数）"章节。本数据集还提供了一种备用格式，可在"Data Files（数据文件）"章节获取，该格式下每个物种均对应一个以物种名作为列名的丰度列。 该备用数据格式分为两个独立数据表，分类依据为物种属于外来引入物种还是本土/隐存起源物种。本数据集的主数据表已通过"Species_status_type（物种状态类型）"列标注了该分类信息。