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Exploring Ecological Succession: A Process of Community Change

Discover the intriguing process of ecological succession, where species evolve in a community post-disturbance. Witness the regeneration and creation of new communities, from pioneer species to climax communities. Dive into primary and secondary succession types, recognizing the vital role of biotic changes. Unveil how damaged habitats are restored and new ecosystems emerge in previously uninhabited regions. Learn about the impact of factors like erosion and migration on the development of ecological communities.

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Exploring Ecological Succession: A Process of Community Change

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

  2. 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

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

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

  5. A system of biotic changes that regenerate or create an ecological community is known as • Migration • Factors • Succession • Erosion

  6. The development of an ecosystem in an area that has been covered by lava begins with the • Break down of rock by pioneer species • Migration of animals • Growth of trees and shrubs • Appearance of soil

  7. Lichens and mosses that first lived in uninhabited areas are examples of • Non-native species • Pioneer species • Primary species • Secondary species

  8. Secondary succession is most likely to occur • After a forest fire • With pioneer species • If a glacier shrinks • On a new volcanic island

  9. Which of the following statements about primary succession is true? • It begins with a climax community. • Small mammals are first to inhabit the area. • It only occurs after glaciers retreat. • It begins with bare rock.

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