|
Threatened and Extinct
Species
Source: Global
Biodiversity Outlook, 2001
| |
Number of species
in group |
Approx.
proportion of group assessed |
Threatened
species in 2000 |
% of total in
group threatened |
Extinct species |
|
Vertebrates |
|
Mammals |
4763 |
100% |
1130 |
24% |
87 |
|
Birds |
9946 |
100% |
1183 |
12% |
131 |
|
Reptiles |
7970 |
<15% |
296 |
4% |
22 |
|
Amphibians |
4950 |
<15% |
146 |
3% |
5 |
|
Fishes |
25 000 |
<10% |
752 |
3% |
92 |
|
Invertebrates |
|
Insects |
950 000 |
<0.1% |
555 |
0.06% |
73 |
|
Molluscs |
70 000 |
<5% |
938 |
1% |
303 |
|
Crustaceans |
40 000 |
<5% |
408 |
1% |
9 |
|
Others |
>100 000 |
<0.1% |
27 |
0.02% |
4 |
|
Plants |
|
Mosses |
15 000 |
<1% |
80 |
0.5% |
3 |
|
Conifers, cycads,
etc |
876 |
72% |
141 |
16% |
1 |
|
Flowering plants |
138 000 |
<9% |
5390 |
3.5% |
86 |
|
