Data Access and Format: The dataset is available in a standard tabular format (CSV) using Darwin Core-compliant terminology to ensure compatibility with biodiversity databases. Users should refer to the metadata file for a detailed description of the column names. For convenience, a custom function named split_and_save_csv() is provided in danubeoccurR to split the occurrence dataset into independent datasets.

Geospatial Considerations: Species occurrences are georeferenced based on available locality information. Users should be aware that some records may have variable spatial precision, particularly historical occurrences. It is recommended to apply spatial filtering techniques suited to the intended analysis. For example, the coordinate uncertainty provided for records sourced from GBIF can help determine whether a record is suitable for a given analysis. Additionally, the function snap_points_on_map() in danubeoccurR allows users to manually adjust occurrence points for greater precision.

Taxonomic Standardization: Users are advised to cross-check species names with updated taxonomic databases if taxonomic revisions occur after the dataset's publication.

Data Quality and Potential Limitations: While efforts were made to standardize and clean the data, users should consider potential sources of bias, including sampling effort variations, taxonomic misidentifications, or incomplete historical records. Some records have been flagged as environmental outliers based on inconsistencies between species occurrence and expected environmental conditions. These flagged records should be reviewed carefully and may require further investigation or validation before inclusion in analyses.