Decomposers organisms are in charge of decomposing organic matter and returning it to the ground as inorganic elements. Sunlight provides energy to autotroph organisms that use it to produce organic matter.
What is the role of sunlight and decomposers on the trophic webs?
The trophic web is the interaction between different organisms involving the transference of energy when some of them feed on the other ones. The ones placed at lower levels pass energy to the ones at the higher levels.
Different levels compose the trophic web.
- Producers
- Primary consumers are herbivores
- Secondary consumers are carnivores
- Decomposers
The role of sunlight is to provide energy to producers. Part of the energy that reaches the Earth's surface is taken by autotroph organisms that use it to produce organic matter from inorganic elements.
Decomposers are microorganisms or small invertebrates in charge of recycling elements from dead organic matter and returning them to the ground as inorganic elements.
In this way, natural cycles begin again passing elements from the ground to autotroph organisms, heterotrophs, decomposers, and finally returning to the ground.
In the trophic web,
- the arrow that leaves from sunlight must reach green algae, quaking aspen, wheatgrass, gray willow, and pond lily. This is because sunlight is used by autotrophs.
- arrows leaving from all the organisms in the trophic web must reach decomposers because decomposers take energy from every organism.
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