What is a common effect of introducing a non-native plant species into an ecosystem?

Introducing a non-native plant species into an ecosystem often leads to the disruption of local plant communities. Non-native species can outcompete native plants for resources such as sunlight, water, and nutrients, which can alter the balance of the ecosystem. This competition can result in the decline or extinction of native species, leading to reduced biodiversity and changes in the structure and function of the local community. Additionally, non-native species may introduce new diseases or pests that further threaten the native flora and fauna. Thus, the introduction of non-native plants can have significant and often detrimental impacts on local ecosystems, highlighting the importance of managing plant introductions carefully.