Fundamental roles in ecosystem properties and processes

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Reference no: EM133932526

Questions

1. Native soil microbial communities play fundamental roles in ecosystem properties and processes, which is why the potential alteration of these communities by exotic plant invasion is of concern. Identify three roles of microbes in ecosystems and give examples of a few examples of organisms involved:

2. How do exotic plants alter soil microbial communities?

3. Invasive species like Common buckthorn (Rhamnus cathartica) or Garlic mustard know to grow prolifically replacing native species. Explain a pathway or mechanism by which displacement of native plant species by exotic species takes place.

4. Soil characteristics affect presence of microorganisms in the soil. How do the following chemical characteristics affect microbial organisms? (you can do some research to find the answers).

a) pH?

b) Moisture content?

Reference no: EM133932526

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