what role do microorganisms play in ecological succession?

they play role in ecosystem by occuping a niche.

have i got it down correct?

microorganisms are nonliving and the ecological succession changes the abiotic parts in an ecosystem.

Andrea. I hope you're not taking an online class. You need a lot of help from a teacher you can sit down and talk with. Obviously, trying to get help from an online teacher didn't work for you.

Microorganisms are living.

You didn't tell how the ecological succession changes the abiotic parts.

Good night -- and good luck!

Yes, you are partially correct. Microorganisms do play a significant role in ecological succession, but their involvement is not solely limited to occupying a niche. Allow me to provide a more comprehensive explanation.

Ecological succession refers to the process of change in the species composition and structure of an ecosystem over time. It occurs in both terrestrial and aquatic environments, after a disturbance or the formation of a new habitat. During this process, different organisms colonize and establish themselves in the ecosystem, gradually changing the environment and making it more suitable for other organisms.

Microorganisms, including bacteria, fungi, and algae, are among the first organisms to colonize a newly formed or disturbed habitat during primary succession. These microorganisms play various roles in the ecological succession process:

1. Soil formation: Microorganisms are responsible for breaking down organic matter and decomposing dead organisms. Through their metabolic activities, they contribute to the formation of nutrient-rich soils, which are essential for the establishment of more complex plant species.

2. Nutrient cycling: Microorganisms play a crucial role in the cycling of nutrients, such as carbon, nitrogen, and phosphorus, within an ecosystem. They decompose organic matter, releasing nutrients that can be utilized by other organisms in the ecosystem.

3. Interactions with plants: Many microorganisms establish symbiotic relationships with plant roots, forming mutualistic associations. For example, mycorrhizal fungi form associations with plant roots, aiding in nutrient uptake by the plants. This association benefits both the plants and the microorganisms.

4. Successional facilitation: Microorganisms can facilitate the establishment and growth of other organisms during succession. They may modify the environment, making it more favorable for subsequent plant and animal colonization.

5. Biogeochemical processes: Microorganisms are involved in various biogeochemical processes, such as nitrogen fixation, photosynthesis, and decomposition of complex organic compounds. These processes are essential for nutrient cycling and energy flow within the ecosystem.

In summary, microorganisms contribute in multiple ways to the ecological succession process. They play a vital role in soil formation, nutrient cycling, establishment of symbiotic relationships, successional facilitation, and biogeochemical processes. By understanding and appreciating their importance, we gain insights into the intricate web of interactions that drive ecosystem dynamics.