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7. Analysis
7.1 Comparison of Welsh and British
Red Data Lists
When drawing comparisons between taxa on the Welsh and GB Red Data Lists it is
important to remember that identical criteria were used in their selection. Obviously, a
much smaller area was under consideration (Wales being only 10% of the size of Great
Britain) so it is not surprising that the proportion of taxa in each threat category in each
area is so dissimilar in some cases (Table 2 and Figures 1 & 2).
Great Britain Wales
No. of taxa % of total No. of taxa % of total
Extinct (EX+RE) 25 2 26 3
Critically Endangered (CR) 16 1 18 2
Endangered (EN) 40 4 64 8
Vulnerable (VU) 87 8 64 8
Near Threatened (NT) 78 7 12 1
Data Deficient (DD) 19 2 15 2
Least Concern (LC) 845 76 651 77
Total 1110 850
Table 2. Number and proportion of taxa in each Red Data List category in Great Britain and
Wales. Taxa on the Waiting List are excluded.
Figure 1. The proportion of taxa in each IUCN category in Great Britain
(following Hodgetts, 2011).
Rhestr Data Coch Bryoffytau ar gyfer Cymru
Extinct (EX)
Critically Endangered (CR)
Endangered (EN)
Vulnerable (VU)
Near Threatened (NT)
Data Deficient (DD)
Least Concern (LC)
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