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Ecological Succession: Processes and Impacts on Ecosystems

This study explores how organisms, populations, and communities respond to external factors, and how events and processes during ecological succession can change populations and species diversity. It focuses on understanding the process of change in a community following a disturbance in an ecosystem, and the regeneration and creation of communities after such disturbances. The study also delves into primary and secondary succession, and the impact of environmental change on ecosystem stability.

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Ecological Succession: Processes and Impacts on Ecosystems

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  1. The student is expected to:11B investigate and analyze how organisms, populations, and communities respond to external factors; 11D describe how events and processes that occur during ecological succession can change populations and species diversity;12F describe how environmental change can impact ecosystem stability

  2. KEY CONCEPT Ecological succession is a process of change in the species that make up a community.

  3. Succession occurs following a disturbance in an ecosystem. • Succession regenerates or creates a community after a disturbance. • a sequence of biotic changes • damaged communities are regenerated • new communities arise in previously uninhabited areas

  4. primary succession — started by pioneer species • There are two types of succession.

  5. secondary succession — started by remaining species • There are two types of succession.

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