| Impact ID | 5575 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In ponds where Crassula helmsii was the dominant species there was an increase in total individual abundance of macroinvertebrates but a decrease in evenness. Overall, there was a significant effect on invasion category and an indication that C. helmsii influences macroinvertebrate community composition. |
| Reference | 39679 |
| Cost | |
| Location | Dartmoor National Park, Devon, United Kingdom |