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Transcript of Succession
what is succession?
Succession is the observed process of change in the species structure of an ecological community over time.
The purpose of succession
the purpose of succession
The purpose of succession is for an ecosystem to reach a state of balance or rest after it has been formed or disturbed by man or an element such as fire.
An example of primary succession is the initial development of plant and animal communities in an area where no soil initially exists.
An example of secondary succession is the development of new inhabitants to replace the previous community of plants and animals that has been disturbed or disrupted by an event (Forest fire, Flood, Harvesting, Epidemic Disease, Pest Attack, etc.)
emigration- Occurs when, as a population approaches carrying capacity, individual organisms from the population leave and go to a new area where they can find enough resources for survival and reproduction.
Immigration- Has the exact opposite meaning and effect on population size as emigration.
Birth Rate (Natality)-the number of births in a population.
Death rate (mortality)- The number of organisms that are dying in a population.