Decomposers (or saprotrophs) are organisms that consume dead organisms, and, in doing so, carry out the natural process of decomposition. Like herbivores and predators, decomposers are heterotrophic, meaning that they use organic substrates to get their energy, carbon and nutrients for growth and development. Decomposers use deceased organisms and nonliving organic compounds as their food source. The primary decomposers are bacteria and fungi.
[edit] Importance of the function in the ecosystem
When a plant or animal dies, it leaves behind nutrients and energy in the organic material that comprised its body. Scavenger and detritivores can feed on the carcasses or litter, but they will inevitably leave behind a considerable amount of unused energy and nutrients. Unused energy and nutrients will be present both in the unconsumed portions (bones, feathers or fur in the case of animals, wood and other indigestable litter in the case of plants) and in the feces of the scavengers and detritivores. Decomposers complete decomposition by breaking down this remaining organic matter. Decomposers eventually convert all organic matter into carbon dioxide (which they respire) and nutrients. This releases raw nutrients (such as nitrogen, phosphorus, and magnesium) in a form usable to plants and algae, which incorporate the chemicals into their own cells. This process resupplies nutrients to the ecosystem, in turn allowing for greater primary production.
An example of a decomposer is saprotrophic fungus; it breaks down dead trees, harvesting the energy stored therein.
Although decomposers are generally located on the bottom of ecosystem diagrams such as food chains, food webs, and energy pyramids, decomposers in the biosphere are crucial to the environment. By breaking down dead material, they provide the nutrients that other organisms need to survive. As decomposers feed on dead organisms, they leave behind nutrients. These nutrients become part of the soil. Therefore, more plants can grow.
[edit] Importance of the function in the ecosystem
When a plant or animal dies, it leaves behind nutrients and energy in the organic material that comprised its body. Scavenger and detritivores can feed on the carcasses or litter, but they will inevitably leave behind a considerable amount of unused energy and nutrients. Unused energy and nutrients will be present both in the unconsumed portions (bones, feathers or fur in the case of animals, wood and other indigestable litter in the case of plants) and in the feces of the scavengers and detritivores. Decomposers complete decomposition by breaking down this remaining organic matter. Decomposers eventually convert all organic matter into carbon dioxide (which they respire) and nutrients. This releases raw nutrients (such as nitrogen, phosphorus, and magnesium) in a form usable to plants and algae, which incorporate the chemicals into their own cells. This process resupplies nutrients to the ecosystem, in turn allowing for greater primary production.
An example of a decomposer is saprotrophic fungus; it breaks down dead trees, harvesting the energy stored therein.
Although decomposers are generally located on the bottom of ecosystem diagrams such as food chains, food webs, and energy pyramids, decomposers in the biosphere are crucial to the environment. By breaking down dead material, they provide the nutrients that other organisms need to survive. As decomposers feed on dead organisms, they leave behind nutrients. These nutrients become part of the soil. Therefore, more plants can grow
HUH? decomposers? and what on earth is a helful tothe? and why is my spell check going nuts? you tell me.
by returning nutrients to the soil....
They return nutrients to the environment.
No, decomposers get their energy directly from the material they are decomposing, which, in most cases, comes indirectly from sunlight.
decomposers
where would you find the most decomposers in the soil layer
Many types of decomposers live in the water. The most common are marine worms, starfish, sea urchins, bacteria, fungi, and underwater macro decomposers.
Most animals are consumers, very few are decomposers. Examples of decomposers are earthworms, craps, and fungi.
Most Bacteria are decomposers or producers, or consumers
They are the bacteria and fungi.
Some of the decomposers in a desert are various beetles, including dung beetles. Millipedes, ants, fungi, bacteria, and earthworms are other decomposers in a desert.
Most decomposers are insects. Flies, maggots, beetles, ants and roaches are forms of insect decomposers. Other decomposers known as scavengers are vultures, hyenas, and possums.
Most of them are bacteria and fungi.
topsoil.