Cooper, S.D., Walde, S.J. & Peckarsky, B.L. (1990) Prey exchange rates and the impact of predators on prey populations in streams. Ecology, 71, 1503-1514. 魚類の底生無脊椎動物*1食による底生無脊椎動物の個体数への影響を考えるうえで，exchange…