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What does a food web show that a food chain does not show?

What does a food web show that a food chain does not show?

Food webs don’t usually show decomposers—you might have noticed that the Lake Ontario food web above does not. Yet, all ecosystems need ways to recycle dead material and wastes. That means decomposers are indeed present, even if they don’t get much air time.

How are food webs different to food chains?

A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem. Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web.

What does a food chain web show?

Food webs describe the relationships — links or connections — among species in an ecosystem, but the relationships vary in their importance to energy flow and dynamics of species populations. Some trophic relationships are more important than others in dictating how energy flows through ecosystems.

What is a food web and what do food webs tell us?

A food web is a detailed description of the species within a community and their relationships with each other; it shows how energy is transferred up food chains that are interlinked with other food chains.

Food webs explain relationships between organisms, both living and non living, among a particular population. Food chains show the transfer of energy between organisms.

When do all the food chains in an ecosystem join up?

When all the food chains in an ecosystem are joined up together, they form a food web. Here is an example of a food web: Although it looks complex, it is just several food chains joined together. Here are some of the food chains in this food web:

What are the different types of food chains?

When there are more cross interactions between different food chains, the food web gets more complex. This complexity in a food web leads to a more sustainable ecosystem. There are two types of food chains, namely detritus food chain and grazing food chain.

The number of trophic links per consumer is a measure of food web connectance. Food chains are nested within the trophic links of food webs. Food chains are linear (noncyclic) feeding pathways that trace monophagous consumers from a base species up to the top consumer, which is usually a larger predatory carnivore.