Soil microbes key to stopping invasive plants - study shows.
Soil microbes can change how diverse plant communities are invaded by exotic plants. When native plant communities have more species, they are better at resisting invasion by invasive plants. This is because diverse plant communities interact with soil microbes in a way that helps them fight off invaders. The presence of soil microbes makes diverse plant communities even more resistant to invasion. This shows that soil microbes play a big role in the relationship between plant diversity and invasibility.