logging in or signing up Ecological Succession ngobert Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 5587 Category: Science & Tech.. License: All Rights Reserved Like it (5) Dislike it (0) Added: July 18, 2009 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... By: youngtip (38 month(s) ago) love it Saving..... Post Reply Close Saving..... Edit Comment Close By: umailalways (49 month(s) ago) NEAT POWER POINT PRESENTATION.WELL DONE! Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Changes in Ecosystems:Ecological Succession : Changes in Ecosystems:Ecological Succession Definition: : Definition: Natural, gradual changes in the types of species that live in an area; can be primary or secondary The gradual replacement of one plant community by another through natural processes over time Primary Succession : Primary Succession Begins in a place without any soil Sides of volcanoes Landslides Flooding Starts with the arrival of living things such as lichens that do not need soil to survive Called PIONEER SPECIES Slide 4: http://botit.botany.wisc.edu http://www.saguaro-juniper.com/ Primary Succession : Primary Succession Soil starts to form as lichens and the forces of weather and erosion help break down rocks into smaller pieces When lichens die, they decompose, adding small amounts of organic matter to the rock to make soil Slide 6: http://www.life.uiuc.edu Primary Succession : Primary Succession Simple plants like mosses and ferns can grow in the new soil http://uisstc.georgetown.edu http://www.uncw.edu Primary Succession : Primary Succession The simple plants die, adding more organic material The soil layer thickens, and grasses, wildflowers, and other plants begin to take over http://www.cwrl.utexas.edu Primary Succession : Primary Succession These plants die, and they add more nutrients to the soil Shrubs and tress can survive now http://www.rowan.edu Primary Succession : Primary Succession Insects, small birds, and mammals have begun to move in What was once bare rock now supports a variety of life http://p2-raw.greenpeace.org Secondary Succession : Secondary Succession Begins in a place that already has soil and was once the home of living organisms Occurs faster and has different pioneer species than primary succession Example: after forest fires Slide 12: http://www.geo.arizona.edu Slide 13: http://www.ux1.eiu.edu Slide 14: http://www.agen.ufl.edu Climax Community : Climax Community A stable group of plants and animals that is the end result of the succession process Does not always mean big trees Grasses in prairies Cacti in deserts You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.