Use these supplied feeding links for this simplified meadow model. Real diets vary by species and habitat.
Card⇅
Food or energy source in this model⇅
Grass
Uses sunlight to make sugars
Rabbit
Eats grass
Grasshopper
Eats grass
Frog
Eats grasshoppers
Fox
Eats rabbits and frogs
Leafy plant
Uses sunlight to make sugars
Caterpillar
Eats leaves
Bird
Eats caterpillars; can be eaten by foxes
One organism can have several feeding links.
Write grass → rabbit → fox. Arrows show the direction energy transfers when one organism is eaten, not who chases whom. Grass is a producer. Rabbits are consumers. Add grass → grasshopper → frog → fox to build a simple web. Decomposers break down dead material; nutrients cycle, while energy enters and eventually spreads to the surroundings.
Grass → rabbit → fox. Arrows follow feeding energy toward the eater.
2.
Grass → grasshopper → frog → fox.
3.
Leafy plant → caterpillar → bird → fox. The fox has several food sources in this model.
4.
Fewer grasshoppers may mean less food for frogs and fewer frogs later. Other food sources, movement, and timing could change this result.
5.
Decomposers break down dead material and release nutrients for reuse. Energy transfers and spreads to the surroundings; it does not cycle like nutrients.
A web shows alternative food sources. A fox population might be buffered by rabbits when frogs become less available; a single frog chain misses that possibility. This is a possibility, not a certain prediction.