food chains (ecology)

Explains how energy is transferred from link to link in a food chain, starting with the sun; tells students about producers, consumers, and decomposers, describing their functions within different food chains, presents a hands-on demonstration, examining owl pellets to determine an owl's role in its food chain; and visits a research vessel to investigate plankton's place in the marine food chain.

Explains what food webs are, and follows a striped hyena, white-headed duck, leech, crocodile, and other animals as they weave food webs in the Nile River. Includes descriptions and photographs of various Nile River plants and animals.

Explains what food webs are, and follows an otter civet, saltwater crocodile, crested serpent eagle, a Borneo clouded leopard, an Indian monitor lizard, and other animals as they weave food webs in an Asian mangrove forest.

Explains what food webs are, and follows an American alligator, wood duck, bobcat, crayfish, and other estuary inhabitants as they weave food webs in the swamp.

Explains what food webs are, and follows a leopard, rock hyrax, okapi, strange-horned chameleon, and other animals as they weave food webs in an African cloud forest. Includes descriptions and photographs of various cloud forest plants and animals.

Learn the cycle of food chains and webs and how they support Earth's creatures. Explore terms like predator, prey, consumer and producer. Hands-on experiment.

Examines the various animals that inhabit the world's rainforests and discusses the food chain and what happens to a food web when a food chain breaks down as well as methods that can be taken to protect the rainforest food chain.

Curious youngsters find out where neighborhood creatures get their food, and in the process discover how local food chains might be connected with others in faraway places as their imaginations carry them from forest treetops to Alaskan waters and the Okefenokee Swamp.

A hungry mosquito starts a food chain in a steamy swamp as each hungry animal both preys and is preyed upon.

When China's leader declares war on sparrows in 1958, everyone makes loud noise in hopes of chasing the hungry birds from their land except for Ming-Li, a young girl whose compassion and foresight prevent a disaster.