La Fondation TOTAL ISSG of the Species Survival Commission of the IUCN - World Conservation Union, University of Aukland and private donations, 2010. 100 of the World's Worst Invasive Alien Species.
| Scientific Name | Common Name | Type | Subtype | Extent | Risk of Introduction | Link |
|---|---|---|---|---|---|---|
| Capra hircus | Feral goat | vertebrate | mammal | n/a (already in CA) | ||
| Cervus elaphus | Wapiti | vertebrate | mammal | n/a (already in CA) | ||
| Macaca fascicularis | Crab-eating Monkey | vertebrate | mammal | |||
| Pycnonotus caferi | Red-vented bulbul | vertebrate | bird | |||
| Sciurus carolinensis | Gray squirrel | vertebrate | mammal | |||
| Sciurus niger | Fox squirrel | vertebrate | mammal |