There are several types of wetland ecosystems, including marshes, swamps, bogs, and fens. Each type has unique characteristics and supports a variety of plant and animal species. Marshes are characterized by grasses, reeds, and other non-woody plants, while swamps are dominated by trees and shrubs. Bogs are acidic wetlands with waterlogged soil and are often home to unique plant species like sphagnum moss and carnivorous plants. Fens, on the other hand, have alkaline water and support a diverse array of plant species. These wetland ecosystems play a crucial role in maintaining biodiversity, protecting water quality, and providing habitat for many species.