Download presentation
Presentation is loading. Please wait.
Published byGladys Long Modified over 9 years ago
1
ECOLOGICAL SUCCESSION
2
Black Eyed Peas Minimize Jumbo Jet
3
ECOLOGICAL SUCCESSION Ecosystems are constantly changing as a result of natural and human disturbances. Ecological Succession: The series of changes that occur in a community over time. Target: I will be able to define succession, contrast primary and secondary succession, and identify each stage. Pg. 97
4
Types of Ecological Succession: 1. Primary Succession: Changes that occur on surfaces where there is no soil. Examples: Volcanic Lava, bare rock, pavement 2. Secondary Succession: Changes that occur on surfaces where soil is already present. Examples: forest fire, plowed field, deforestation
5
Each ecosystem goes through certain stages of succession. Pioneer Species: the first species to populate an area. In primary succession it is lichens and mosses. In secondary succession, it is weeds and grasses. Seral Communities: different communities between the pioneer species and the climax community. Each species in succession changes the habitat and makes way for the next species.
6
Climax Community: The mature, stable community of organisms, which is the end result of succession. Succession Animation
7
Let’s Practice! Decide if each of the ecosystems is caused by primary or secondary succession and what stage they are in. Scenario 1: An area that has been destroyed by a volcano is dominated by a community that includes lichens and mosses. Predict the stage of succession the community is in. Pioneer Species
8
Scenario 2: A Northwest forest ecosystem is dominated by large trees. Predict the stage of succession the community is in. Climax Community Scenario 3 : A Northwest forest ecosystem that has been clear cut is now dominated with grasses and shrubs. Predict the stage of succession the community is in. Seral Community
9
Climax Community: The mature, stable community of organisms, which is the end result of succession. Summary:
10
IDENTIFYING SUCCESSION Primary Succession Secondary Succession Pg. 96 Draw a picture OR write a story of how the succession happens from bare rock or soil, to smaller plants to larger plants until you have a climax community. *Use a minimum of 4 colors OR good grammar*
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.