| Macrophytes play a key role in many unshaded lotic ecosystems, but little is known of the factors controlling their presence, abundance, and composition. |
| Riverine ecosystem, also called lotic ecosystem, any spring, stream, or river viewed as an ecosystem. |
| A riverine, or lotic, ecosystem, by contrast, has flowing water e.g., a river or a stream. |
| Flow can vary along a lotic stretch, but as a rule, maximum velocity is midstream near the surface. |
| The main threats to this species are barriers in rivers and the consequent disappearance of lotic and continuous environments. |
| The stream-dwelling species are among the most lotic of anisopterous dragonflies. |
