Appendix A. Photograph of the mesocosms used in the experiment, showing the unglazed clay tile and three silica disks used for sampling biofilm, and the trap used for sampling emergent aquatic insects.

Photograph of the mesocosms used in the experiment, showing the unglazed clay tile and three silica disks used for sampling biofilm, and the trap used for sampling emergent aquatic insects.

本实验所用中型实验生态系统（mesocosms）的照片，展示了用于采集生物膜（biofilm）样本的无釉陶片与三片二氧化硅圆盘，以及用于采集羽化水生昆虫样本的诱捕器。