European Red List of Bees

Figure 8. Distribution of endemic bees in Europe.
3.3.3. Distribution of threatened species
In Figure 9, the richness pattern of threatened bee
species in Europe, which considered 77 threatened
species, is illustrated showing the greatest concentration
in south-central Europe eastwards to Crimea while large
parts of southern Europe seem to have low numbers
of threatened bees. This pattern is different from, and
contrasts the picture of overall species diversity (Figure
7) and the distribution of endemics (Figure 8). In part,
this may be because there is a large number of species
that have been classified as Data Deficient (1,101 bee
species, 56.7% of the total European fauna, Table 3
and Figure 3), of which the vast majority appear to be
restricted to southern Europe and these have not been
considered here. However, given that Mediterranean
Europe has undergone a large-scale transformation in
land use in the last few decades, it is very likely that many
of the range restricted and specialised bee species there
are actually threatened. Thus, Figure 9 is misleading
regarding the situation in southern Europe and reveals
an urgent need for further research and recording in
these areas.
Andrena magna (Endangered). © A.V. Fateryga.
3.3.4. Distribution of Data Deficient species
In Figure 10 the richness of Data Deficient species
is presented and is based on the total number of Data
Deficient species (1,101 species). The pattern is very
similar to the map showing general bee richness
(Figure 7). This illustrates the deep divide in available
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