Funnel traps are specialized devices used in various fields, including environmental science and engineering, to capture and study small organisms or particles. They typically consist of a funnel-shaped structure that directs the flow of water or air into a collection chamber, allowing researchers to gather samples efficiently. These traps are particularly useful for monitoring aquatic ecosystems or assessing air quality. By analyzing the collected samples, scientists can gain insights into biodiversity, pollution levels, and other ecological factors, helping to inform conservation efforts and environmental policies.