What is one common characteristic of ephemeral streams?

Ephemeral streams are characterized by their intermittent flow patterns, typically occurring briefly following rainfall or snowmelt. They often exist in arid or semi-arid regions where runoff is limited, leading to a lack of sustained water flow. The flow in these streams is not continuous; instead, it may appear and disappear based on precipitation events. This adaptation to the local climate is why ephemeral streams can be crucial for ecosystems, even though they are not present all year round. This characteristic distinguishes them from other types of waterways, such as perennial streams, which have a continuous flow throughout the year, and intermittent streams, which flow seasonally but can maintain water for longer periods compared to ephemeral streams.