1 / 18

Succession

Succession. Primary Succession. Defined: Establishment and development of an ecosystem in an uninhabited environment Starts with bare rock. Volcanic activity. Lava cools and hardens into rock, forming new land. Glaciers retreat. New land is exposed and ready to be inhabited.

henry
Download Presentation

Succession

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Succession

  2. Primary Succession • Defined: Establishment and development of an ecosystem in an uninhabited environment • Starts with bare rock

  3. Volcanic activity • Lava cools and hardens into rock, forming new land.

  4. Glaciers retreat • New land is exposed and ready to be inhabited.

  5. Pioneer Species • Defined: First organisms to inhabit new land • Moss and lichen grow on bare rock • Dead matter and crumbling rock  first layer of soil.

  6. The Process Continues • Seeds grow in the new soil. • Small flowers & shrubs build up more organic matter • Small animals and insects.

  7. The Process Continues • Enough soil to support small trees • Animals use the trees as a habitat

  8. Climax Community • Large trees take root • Crowd in and compete with smaller trees • Large animals inhabit new forests

  9. Secondary Succession • Defined: Rebuilding an ecosystem after a disaster • Forest fires, floods, tree falls…

  10. Occurs at a faster rate - Soil already exists - Dead matter returns nutrients to soil

  11. Review • What are the first organisms to live within a newly created patch of land called? • Give examples of the answer to question #1. • What are the final organisms to live within a newly created patch of land called? • How are new areas of land created? • Give a few examples how the process of secondary succession can start. • How does primary and secondary succession differ?

More Related