[PDF] Food webs : linkage, interaction strength and community infrastructure | Semantic Scholar

The first experimental study designed to estimate interaction strengths in a species-rich herbivore guild is reported, documenting on a per capita basis mainly weak or positive interactions, and a few strong interactions, a pattern which has profound implications for community dynamics.

I review the theoretical and empirical evidence for various theories concerning biomass and turnover patterns of different trophic levels in ecosystems, with special reference to aquatic food webs, and it is concluded that the food chain dynamics theory is useful for examining the direct and indirect effects of predator-prey interactions.