Ephemeral streams are temporary watercourses that flow only during certain times of the year, typically after rainfall or snowmelt. They do not have a continuous flow and may dry up completely during dry seasons. These streams are important for local ecosystems, providing habitats for various plants and animals. The water in ephemeral streams often collects in pools, supporting wildlife during dry periods. They can also play a role in groundwater recharge, helping to maintain the water table. Understanding ephemeral streams is crucial for managing water resources and protecting wetland ecosystems.