The 2016 release of the PREDICTS database V1.1

__This is an updated version of the 2016 release of the PREDICTS database. __

Data review in 2021-2023 has resulted in some changes and additions to the database.
One source (consisting of three studies) has changed ID. 24 studies have an additional blocking structure that was mistakenly omitted in the original database release. Three studies have additional blocks and records, as data from additional years have been included in this extract. We recommend using this updated version of these data, rather than the original 2016 release.

A dataset of 3,278,056 measurement, collated from 26,194 sampling locations in 94 countries and representing 47,089 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