Data retrieved from IUCN Red List, on 17:32, 14 February 2009 (UTC). Total number of species from Table 1. Number of species in VU, EN and CR from Table 2.
Not all species from the "total number of species" column are assessed by IUCN, so these percentages refer to the minimum proportion of species which qualify for listing. See source documents for details.
2007
Group
Species
Threatened
CR
EN
VU
Mammals
5416
1094
163
349
582
Birds
9956
1217
189
356
672
Reptiles
8240
422
79
139
204
Amphibians
6199
1808
441
737
630
Fishes
30000
1201
254
254
693
Insects
950000
623
69
129
425
Molluscs
81000
978
268
224
486
Plants
297326
8447
1569
2278
4600
2008
Group
Species
Threatened
CR
EN
VU
Mammals
5488
1141
188
448
505
Birds
9990
1222
190
361
671
Reptiles
8734
423
86
134
203
Amphibians
6347
1905
475
755
675
Fishes
30700
1275
289
269
717
Insects
950000
626
70
132
424
Molluscs
81000
978
268
224
486
Plants
298506
8457
1575
2280
4602
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{{Information |Description=Percentage of species listed on the IUCN Red List, by group. |Source=Self-made with OpenOffice.org. Data sources below. |Date=September 2007 |Author=H2g2bob }} ==Data== Data from [http://www.iucnredlist.org/inf