31 Ecosystem Ecology – Decomposition

A set of flashcards focused on the key concepts related to decomposition and the roles of various decomposers in ecosystem ecology.

Decomposition

The breakdown of organic matter, including physical reduction in size and oxidation of carbon.

Decomposers

Organisms that break down dead or decaying organisms; includes bacteria, fungi, and certain arthropods.

Lignin

A complex structural carbohydrate found in wood that decomposes extremely slowly due to its complexity and low nitrogen content.

Bacteria

Some of the most important decomposers in all ecosystems (terrestrial, aquatic, & marine

Hydrocarbons

Carbohydrates without the oxygen, formed from the burial of vegetation in anoxic conditions, leading to fossil fuel formation.

Carboniferous Period

A geological time period (~280 MYA) marked by massive coal accumulation and a shift from decomposition to hydrocarbon formation.