The Biodiversity Knowledge Hub (BKH): A Crosspoint and Knowledge Broker for FAIR and Linked Biodiversity Data

The Biodiversity Knowledge Hub (BKH) is a web platform acting as an integration point and broker of an open, FAIR (Findable, Accessible, Interoperable, Reusable) and interlinked corpora of biodiversity data, services and knowledge. It serves the entire biodiversity research cycle, from specimens and observations to sequences, taxon names and finally to scientific publications. The strategic aim of the BKH is to support a functional and integrated biodiversity knowledge graph and an emerging new community of users. The BKH is aimed at biodiversity researchers in the widest sense, research infrastructures and publishers (Fig. 1). The BKH is the key product of the EU-funded Biodiversity Community Integrated Knowledge Library (BiCIKL) project (Penev et al. 2022). The four goals of BiCIKL and the BKH are: Improved access to open and FAIR biodiversity data; Establishing of bi-directional data linkages between infrastructures; Development of new methods and workflows for semantic publishing, harvesting, liberating, linking, accessing and re-using of data in literature (specimens, material citations, samples, sequences, taxonomic names, taxonomic treatments, figures, tables); Testing and implementation of services through use cases and open call projects for researchers outside the project. Improved access to open and FAIR biodiversity data; Establishing of bi-directional data linkages between infrastructures; Development of new methods and workflows for semantic publishing, harvesting, liberating, linking, accessing and re-using of data in literature (specimens, material citations, samples, sequences, taxonomic names, taxonomic treatments, figures, tables); Testing and implementation of services through use cases and open call projects for researchers outside the project. The BKH consists of several modules, such as the Home page that presents the main user groups and the benefits that the BKH provides to them. It has guidelines and protocols, such as various documents on the policies, functions, and recommendations for the users. And it has relevant projects, that use linked FAIR biodiversity data. In the core of the BKH is the FAIR Data Place (FDP), which presents novel services and tools developed over the course of BiCIKL. In the future, the FDP will also accept services for linked data provided by new contributors. The FDP consists of three sub-modules: Infrastructures and organisations: Lists the contributing organisations and research infrastructures with