What role do invasive species play in wetland ecosystems?

Invasive species play a detrimental role in wetland ecosystems primarily by outcompeting native plants and disrupting the balance of the ecosystem. When an invasive species is introduced to a wetland, it often lacks natural predators and can spread rapidly, leading to the exclusion of native flora. This process can drastically alter the structure and function of the wetland, affecting not only the plants but also the animals that depend on those native species for survival. The loss of native plants can reduce habitat complexity, diminish food options for herbivores, and ultimately impact the entire food web within the ecosystem. Invasive species can also impact the hydrology of wetlands and their ability to filter pollutants, further degrading the health of these vital environments. This disruption can lead to a decline in biodiversity, which is crucial for the resilience and functionality of wetland ecosystems.