Food webs describe the trophic links between producers and consumers, and consumers and their predators, and are the most widely recognized representation of the interactions between species in an ...

Figure 1: Quantitative food web 17 showing leaf-miner species (bottom bars), parasitoid species (top bars), trophic links among them, and the species predicted to be affected by the manipulation.

Classical food-web theory arises from Lotka-Volterra models. As an alternative, we develop a model from the logistic concept of demand and supply. We first extend the logistic to an arbitrary species ...

Our results shed new light on food-web structure. First, webs are much simpler when considered quantitatively, and link density exhibits scale invariance or weak dependence on food-web size. Second, ...

Steven Wilhelm receives funding from The National Science Foundation, The National Institute of Environmental Health Science, The Department of Energy, The National Oceanographic and Atmospheric ...