Which seasonal changes drastically affect wetland ecosystems?

The correct answer highlights the importance of alterations in water levels and plant growth cycles, which are fundamental aspects of wetland ecosystems. Wetlands are dynamic environments that rely heavily on water availability; changes in water levels can significantly impact the types of plant and animal species that can thrive in these areas.

For instance, during periods of flooding, certain aquatic plants may thrive while others may be submerged or washed away, leading to shifts in the ecosystem's composition. Conversely, during dryer seasons, some wetland areas may become exposed, influencing which organisms can live in these habitats.

Moreover, the growth cycles of wetland plants are closely tied to seasonal changes in water availability. These plants often rely on specific hydrological conditions to germinate, grow, and reproduce. As seasons change and water levels fluctuate, these cycles dictate not only the plant life but also the entire food web within the wetland, including the species that rely on these plants for shelter and nutrients. This interconnectedness underscores how crucial water levels and plant growth are to the health and stability of wetland ecosystems.