Table 1.

Treatments for experiment one

Treatment	Species combination
1	10G + 10A + 50P + no predator
2	10G + 10A + 50P + PSS (Pacific staghorn sculpin)
3	10G + 10A + 50P + SF (starry flounder)
4	10G + 10A + 50P + TSS (threespine stickleback)
5	10G + 10A + 50P + crayfish (signal crayfish)
6	10G + 10A + no predator
7	10G + 10A + PSS (Pacific staghorn sculpin)
8	10G + 10A + SF (starry flounder)
9	10G + 10A + TSS (threespine stickleback)
10	10G + 10A + crayfish (signal crayfish)

G indicates the native isopod Gnorimosphaeroma insulare, A indicates the native amphipod Americorophium salmonis, and P indicates the invasive New Zealand mud snail Potamopyrgus antipodarum. Numbers indicate the number of individuals added to each tank. One individual of each predator species was added. Each treatment was replicated five times