Data contribution

It is not a requirement to host your data in the main GGG database. However, we would like to encourage data owners to submit their data, as doing so supports the broader goal of fostering a comparative and standardised approach to data collection and management. By contributing data, researchers help build a collaborative resource that facilitates cross-location analyses, enhances reproducibility, and strengthens the scientific value of individual datasets. Storing data in a repository is increasingly a requirement by journals and funding bodies as part of publications and policies. The centralised GGG database maintains consistency, transparency and accessibility of ecological data.

The database is hosted in Microsoft Access, providing a secure and structured environment for long-term data storage. It is advised that data is submitted to be stored in the main GGG database as soon as possible after collection.

Data should be entered into the files GGGsubmit_A_sp.xlsx if full species composition was completed, or GGGsubmit_B_func.xlsx if functional group composition was recorded.

Data access

All data within the GGG database are private by default. With the exception of basic plot-level metadata (e.g. geographic coordinates displayed on the GGG website), access to full datasets is restricted to database managers and the original data contributors. Data are stored in Microsoft Access and are not directly downloadable or openly distributed.

Any request to use GGG data must be made to the database manager. Upon receiving a request, the manager will act as an intermediary by putting the prospective data user in direct contact with the relevant data owner(s).

Access to data is granted only with the explicit permission from the data owner(s). As part of this process, data owners are consulted on the proposed use of their data, including the scope of analyses and intended outputs. In line with GGG principals, co-authorship should be offered to data owners on any publications arising from use of their data, unless an alternative form of contribution or acknowledgement is mutually agreed.

While all data remain private unless specified, the GGG strongly encourages data sharing, collaboration and the eventual publication / public release of datasets where appropriate and feasible.

This approach recognises that many data owners are actively analysing and publishing their data over extended timeframes. By requiring consultation with data owners, the policy provides contributors with confidence that their data will not be used without their knowledge, while still facilitating data sharing through direct collaboration. This model aims to encourage long-term participation in the network, promote appropriate recognition of the time and efforts made by data owners, and support high-quality and transparent research outcomes.