The 2016 release of the PREDICTS database [SUPERSEDED]

__IMPORTANT NOTICE: THIS VERSION OF THE DATABASE HAS BEEN SUPERSEDED__ Data review in 2021-2023 has resulted in some changes and additions to the database. The new version (version 1.1), is available for non-commercial use [https://data.nhm.ac.uk/dataset/the-2016-release-of-the-predicts-database-v1-1]. A dataset of 3,250,404 measurements, collated from 26,114 sampling locations in 94 countries and representing 47,044 species. The data were collated from 480 existing spatial comparisons of local-scale biodiversity exposed to different intensities and types of anthropogenic pressures, from terrestrial sites around the world. The database was assembled as part of the [PREDICTS project](https://www.nhm.ac.uk/our-science/our-work/biodiversity/predicts.html) - Projecting Responses of Ecological Diversity In Changing Terrestrial Systems. The taxonomic identifications provided in the original data sets are those determined at the time of the original research, and so will not reflect subsequent taxonomic changes. This dataset is described in [10.1002/ece3.2579](http://dx.doi.org/10.1002/ece3.2579). A description of the way that this dataset was assembled is given in [10.1002/ece3.1303](http://dx.doi.org/10.1002/ece3.1303). * `columns.csv`: Description of data extract columns * `database.zip`: Database in zipped CSV format * `database.rds`: Database in RDS format * `sites.zip`: Site-level summaries in compressed CSV format * `sites.rds`: Site-level summaries in RDS format * `references.csv`: Data references in CSV format * `references.bib`: Data references in BibTeX format

重要声明：本数据库版本已被新版替代。2021至2023年的数据审核工作对本数据库进行了修订与增补。其1.1版已面向非商业用途开放获取，访问链接：https://data.nhm.ac.uk/dataset/the-2016-release-of-the-predicts-database-v1-1。
本数据集包含3,250,404条实测数据，整理自全球94个国家的26,114个采样点，涵盖47,044个物种类群。这些数据源自全球陆地生境中480项已发表的局域尺度生物多样性空间对比研究，这些研究均聚焦不同强度与类型的人为活动压力对生物多样性的影响。
本数据库是【PREDICTS项目（Projecting Responses of Ecological Diversity In Changing Terrestrial Systems，陆地生态系统多样性变化响应预测项目）】的研究成果之一，项目官网：https://www.nhm.ac.uk/our-science/our-work/biodiversity/predicts.html。
原始数据集中的物种分类鉴定信息均为原始研究完成时的判定结果，未纳入后续分类学修订内容。本数据集的相关说明已发表于文献[10.1002/ece3.2579]，其构建流程的详细说明可见于文献[10.1002/ece3.1303]。
以下为数据集配套文件：
* `columns.csv`：数据提取字段说明文件
* `database.zip`：压缩为ZIP格式的CSV格式数据库文件
* `database.rds`：RDS格式数据库文件
* `sites.zip`：压缩为ZIP格式的样点水平汇总CSV文件
* `sites.rds`：RDS格式样点水平汇总文件
* `references.csv`：CSV格式数据参考文献列表
* `references.bib`：BibTeX格式数据参考文献列表