This site contains a list of species which are a potential threat to California. For select species, scorecards have been developed by experts which rate the impacts of the species on various facets of society and measure our ability to respond to the nature of the invasive threat.
Latest Scorecard Updates
| Scorecard | Confidence | Impact Score | Ability to Respond Score | Species | Last Updated | |
|---|---|---|---|---|---|---|
| Acalymma vittatum Scorecard | High | 11 / 35 | 18 / 25 | Acalymma vittatum striped cucumber beetle |
6 months ago | |
|
Phthorimaea absoluta Scorecard | High | 18 / 35 | 20 / 25 | Phthorimaea absoluta Tomato leafminer |
1 year ago |
| Agrilus planipennis Scorecard | High | 21 / 35 | 15 / 25 | Agrilus planipennis emerald ashborer |
1 year ago | |
|
Lycorma delicatula Scorecard | High | 22 / 35 | 19 / 25 | Lycorma delicatula Spotted lanternfly |
1 year ago |
| Xenopus laevis Scorecard | Medium | 17 / 35 | 14 / 25 | Xenopus laevis African clawed frog |
1 year ago |
Project Overview
The Invasive Species Council of California (ISCC) has tasked its advisory committee with developing a list of invasive species that threaten the state. The committee has generated a list of over 1,700 species, and has drafted scorecards for 200+ of the most important species. The list will support outreach and strategic planning; it is not regulatory.
This website is designed to solicit expert comment on the list and scorecards. Expert review is essential to making the list and scorecards accurate. We encourage you to send us a comment on taxa within your area of expertise, and if you are interested, you can become a regular contributor. Please invite your colleagues to do the same. You can review our list of species to see if we left anything out, and review scorecards for individual species to see how they were rated.
Homepage photo by Jack Kelly Clark, UC Statewide IPM Program
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