Here's everything you need to know about food chains and food webs, and how ecologists use them to better understand the role of plants and animals in the ecosystem. Food Chain What is a food chain?

Food chains show interconnected food webs. Find out more with BBC Bitesize. For students between the ages of 11 and 14.

How energy is transferred through food chains and food webs via producers, primary and secondary consumers, predator, prey and decomposers. Suitable for teaching science at KS2, KS3 and 2nd/3rd Level.

In a detrital food chain, dead organic matter of plants and animals is broken down by decomposers, e.g., bacteria and fungi, and moves to detritivores and then carnivores.

Learn about types of food webs and how they differ from a food chain. ... who first introduced it in his book Animal Ecology, published in 1927.

Level Two: Herbivores. The next level of the marine food chain is made up of animals that feast on the sea's abundant plant life. On the ocean's surface waters, microscopic animals—zooplankton ...

In ecology, the food chain is a hierarchical classification of different predators and prey that usually reflects the ecological trophic levels. The food web, on the other hand, is a networked ...

The length of food chains in that web appears to have gotten shorter in response to environmental changes — such as those caused by El ... richer in nitrogen-15, clearly come from animal processes.

"The impact on larger animals at the top of food chains ... "In general, about 10% of energy produced on one level of a food web makes it up to the next level," said Dr Diego Barneche, ...

Temperature rises due to the global climate crisis are putting growing pressure on food chains, ultimately threatening the survival of larger animals, new research shows.. The study examined the ...

Because this process continues up food chains, researchers can use the ratio of nitrogen-15 to nitrogen-14 in fossils to estimate how high up a food web an ancient animal would have been.