Short Answer

Three curation levels were defined by GFBio associated data centers, that describe the extend of standardized metadata and data description.

Detailed Answer

Data submitted to GFBio are curated by data curators at the respective data centers. The submitted data will be enriched with metadata, dependent on the data type, data format and data content, in close collaboration with the data producer. The curation levels are no indication of data quality. 

Data curation is offered in three levels:

Level 1 data are e.g. meant for data following the EML-standard (Ecological Metadata Language) or not community agreed standards for data exchange,

Level 2 data are for non-recurring projects, the data are published as static data files,

Level 3 data are meant for long-term projects with multiple submissions and versions, the data are published dynamically with ‘snapshots’.

Curation Levels


Level 1


Level 2


Level 3

Exchange with data producer regarding metadata


Metadata are curated by data curator


Metadata are assigned to GFBio consensus elements of biodiversity community agreed standards for data exchange


Stable Identifiers (e.g. DOI, ENA-accession numbers) are assigned to published datasets


Exchange with data producer regarding research data content and quality


Research data are curated by data curator


Research data are assigned to GFBio consensus elements of biodiversity community agreed standards for data exchange


Research data are semantically enriched (e.g. by linking to ontologies or identifier services)


Long-term collaboration between data producer and data curator regarding dynamic datasets


Remote curation by the data producer


Continuous versioning of dynamic datasets


Not all GFBio associated data centers offer Level 3 data curation. See the data center profiles for more detail.

See also: