Food Chains and Food Webs in Ecosystems

The video tutorial explains how ecologists use diagrams to illustrate feeding relationships and energy transfer in ecosystems. It begins with a simple food chain example from the Galapagos Islands, showing energy flow from the sun to seaweed to marine iguanas. The tutorial then introduces the concept of food webs, which consist of multiple overlapping food chains, using the Florida Everglades as an example. It highlights the roles of producers, consumers, predators, and prey, emphasizing the interconnectedness of living organisms in complex ecosystems.

What do ecologists use to illustrate feeding relationships between organisms?

Explain the role of producers in an ecosystem.

Describe the energy transfer in a simple food chain.

How does a food web differ from a food chain?

What is the difference between a predator and prey?