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，呈现了用于采集生物膜（biofilm）的无釉陶片与三块二氧化硅圆盘，以及用于采集羽化水生昆虫的采样陷阱。