Final answer:
Decomposers in a swamp ecosystem break down dead organisms and waste materials, releasing nutrients back into the environment. They play a crucial role in the food web by recycling nutrients and increasing the availability of nutrients for other organisms.
Step-by-step explanation:
Decomposers are important organisms in an ecosystem, including in a swamp ecosystem. They break down dead organisms and waste materials, releasing nutrients back into the environment. Fungi, for example, play a vital role as decomposers by breaking down plant cell walls and releasing carbon back into the ecosystem.
Decomposers serve a crucial role in the food web by recycling nutrients. When organisms die, decomposers break down their remains and release simple inorganic molecules. These molecules can then be used by producers to create new organic compounds, increasing the availability of nutrients for other organisms in the food web.