Primary consumers: are herbivores, feeding on plants. Caterpillars, insects, grasshoppers, termites and hummingbirds
Secondary Consumers: Large predators, like wolves, crocodiles, and eagles.
Tertiary consumers: The larger fishes like tuna, barracuda, jellyfish, dolphins, seals, sea lions, turtles, sharks, and whales.
What is the difference between primary, secondary, and tertiary consumers in the food chain?
- Primary consumers are those who buy from primary producers (plants). Rabbits, for example, eat grass. The primary consumers are consumed by secondary consumers (herbivores).
- For example, snakes that eat rabbits. Secondary consumers are eaten by tertiary consumers (large predators).
- The position of some organisms in the food chain can change depending on their diet. When a bear eats berries, for example, the bear is acting as a primary consumer. When a bear consumes a plant-eating rodent, the bear acts as a secondary consumer.
- When the bear consumes salmon, it is acting as a tertiary consumer (this is because salmon is a secondary consumer, since salmon eat herring that eat zooplankton that eat phytoplankton, that make their own energy from sunlight). Consider how people's positions in the food chain change, often within a single meal.
- Tertiary consumers are eaten by quaternary consumers, such as a hawk that eats owls. Each food chain has a top predator that has no natural enemies (like an alligator, hawk, or polar bear).
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