food web

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food web

n.
A complex of interrelated food chains.

food web

see FOOD CHAIN.
References in periodicals archive ?
Although it provided evidence for the process of food chain biomagnification of these contaminants, their simple food chain classification did not directly quantify trophic interactions and ignored the omnivory and complexity of food webs by relying on discrete trophic levels.
1988) that most top predators of arthropod dominated food webs are omnivores.
Several previous studies of food web structures have suggested that species-rich ecosystems are often more robust than species-poor ecosystems," she said.
Ecologists have long debated whether the number of predators--such as fish that feed on smaller creatures--at the top of the ecosystem's food web or the availability of nutrients at the bottom of the web more strongly influences the condition of ecosystems.
2012), which is now the largest single collection of published food webs in the world.
Regional food webs are short and the Arctic Cod, a mid-level consumer, is considered a keystone species because it provides a major energy link between zooplankton and higher-level consumers.
He considered the anthropogenic influences on organic matter processes, energy sources, and attributes of riverine food webs in the Lake Victoria basin, as well as recent research from the tropics, to understand the functioning of the Mara River by assessing the spatio-temporal dynamics of organic matter sources and supply under different land use and flow conditions and the influence of these dynamics on energy flow for consumers in the river.
Conversely, some authors suggest that the decline in mean trophic levels of fisheries landings is due to increased exploitation of the lower trophic levels of marine food webs (Essington et al.
ABSTRACT Understanding spatial dynamics and creating spatial boundaries of marine food webs is an important topic that resource managers are beginning to understand.
Transmission of parasites is dependent on the development of intimate relationships between parasites and host food webs and behavior.
This, in turn, may alter the structure of marine food webs.

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