Ecosystem diversity refers to the variety of ecosystems in a given place.
| Animal groups | No of genera/species |
| Protozoa | 63 generas |
| Porifera | 22 (genera) |
| Cnidaria | 90 genera |
| Chaetognatha | 18 |
| Platyhelminthes | 117 genera |
| Aschelminthes | 265 |
| Acanthocephala | 27 |
| Annelida | 91 |
| Mollusca(Fresh water) | 26 |
| Insects | 6000 |
| Non-insect Arthropda | 600 |
| Echinodermata | 8 |
(Jayaraman et al 2008)
Vertebrate Diversity - Kerala
| Taxonomic group | Orders/species | Families | Species |
| Fishes | 41 | 172 | 905 |
| Amphibians | 2 | 11 | 151 |
| Reptiles | 3 | 24 | 173 |
| Birds | 22 | 88 | 500 |
| Mammals | 13 | 35 | 118 |
| All Vertebrates | 81 | 330 | 1847 |
(Nameer et al 2015)
Terrestrial vertebrates of India & Kerala
|
Taxonomic group |
Terrestrial |
||
|
India* |
Kerala |
Percent in Kerala |
|
|
Fishes |
3022 |
189 (6.2 %) |
6.2 |
|
Amphibians |
342 |
151 (44.1 %) |
44.1 |
|
Reptiles |
526 |
164 (31.1%) |
31.1 |
|
Birds |
1233 |
469 (38.0%) |
38.0 |
|
Mammals |
423 |
95 (22.4%) |
22.4 |
|
All Vertebrates |
5546 |
1068 |
19.2 |
Vertebrates endemic to Western Ghats & Kerala
|
Taxonomic group |
Endemic to Western Ghats |
Endemic to Kerala |
|
Fishes |
131 |
57 |
|
Amphibians |
136 |
36 |
|
Reptiles |
87 |
10 |
|
Birds |
17 |
0 |
|
Mammals |
15 |
1 |
|
All Vertebrates |
386 |
104 |
(Nameer et al 2015)