Data quality (Natura 2000 SDF) Valid None Data Dictionary Vocabularies Eionet Data Dictionary Data Deficient use this category only, if not even a rough estimation of the population size can be made, in this case the fields for population size can remain empty, but the field "Abundance categories" has to be filled in Valid Data Dictionary Vocabularies Eionet Data Dictionary Data quality (Natura 2000 SDF) Good e.g. based on surveys Valid Data Dictionary Vocabularies Eionet Data Dictionary Data quality (Natura 2000 SDF) Moderate e.g. based on partial data with some extrapolation Valid Data Dictionary Vocabularies Eionet Data Dictionary Data quality (Natura 2000 SDF) Poor e.g. rough estimation Valid Data Dictionary Vocabularies Eionet Data Dictionary Data quality (Natura 2000 SDF)