In the thematic area of nature, data on following issues are collected and processed:
pressures and changes in components of biodiversity and biological resources resulting from management, and other natural phenomena. Data related to the natural and semi-natural habitats, as a function of natural and cultural heritage, are being monitored.
Based on data collected in close collaboration with national institutions responsible for monitoring of these data sets, reporting on biodiversity is done. In accordance with the intended purpose of the reports, they are presented on the national and international level and to the general public as well.
Reporting is done by means of biodiversity indicators and preparation and/or coordinating the preparation of thematic reports and other reports on state of the environment. Reports on biodiversity represent an integral part of every state of the environment report.
Reporting on biodiversity for international purposes, includes collection of reports and their integration into Central Data Repository (CDR Croatia) . International cooperation is carried out on the basis of participation in the work of relevant EIONET thematic working groups, and cooperation with EEA European Topic Centre on Biological Diversity.
All collected data are integrated within the Environmental Information System (EIS). Furthermore to its own databases, the CEA provides an insight into other databases of biological diversity in Croatia.