Ecosistema energy input from sun

nutrientcycling

PHOTOAUTOTROPHS(plants, other producers)

HETEROTROPHS(consumers, decomposers)

energy output (mainly heat)

Consumidores

• Herbivoros

• Carnivoros

• Parasitos

• Omnivoros

• Decomponedores

• Detritivoros

SPRING

rodents, rabbits

fruits

insects

birds

SUMMER

rodents, rabbits

fruits

insects

birds

Seasonal variation in the diet of an omnivore (red fox)

FoodWeb

Food Chain

• A straight line

sequence of who eats

whom

• Simple food chains

are rare in nature

MARSH HAWK

UPLAND SANDPIPER

GARTER SNAKE

CUTWORM