Food web is an important conceptual tool for illustrating the feeding relationships among species within a community, revealing species interactions and community structure, and understanding the ...

Why are parasites ecologically important? Parasites can shape community structure through their effects on trophic interactions, food webs, competition, biodiversity, and keystone species. Aa Aa Aa ...

Born in food web ecology, the concept of trophic levels -- the hierarchy of who eats who in the natural world -- is an elegant way to understand how biomass and energy move through a natural system.

A food web is a detailed interconnecting diagram that shows the overall food relationships between organisms in a particular environment. The simplest explanation is that food webs are "who eats whom" ...

Numerous studies have found that predators can suppress prey densities and thereby impact important ecosystem processes such as plant productivity and decomposition. However, prey suppression by ...

On a grassy hill near where I met the ecologist Jennifer Dunne at the Smithsonian National Zoo, a lion craned its shaggy head back to watch a helicopter fly over. It was a stark illustration of humans ...