Ecological succession
Download
1 / 23

Ecological Succession - PowerPoint PPT Presentation


  • 180 Views
  • Uploaded on

Ecological Succession. Living Environment Ecology. Agenda. Natural Disasters Ecological Succession Guided Notes Ecological Succession Group Practice Exit Ticket Finish Early? Work on Castle Learning. Japan Tsunami. California Fires. Question of the Day.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Ecological Succession' - irish


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Ecological succession

Ecological Succession

Living Environment

Ecology


Agenda
Agenda

  • Natural Disasters

  • Ecological Succession Guided Notes

  • Ecological Succession Group Practice

  • Exit Ticket

  • Finish Early? Work on Castle Learning




Question of the day
Question of the Day

  • Aim: How do ecosystems gradually change over time?


Changes in ecosystems ecological succession

Changes in Ecosystems:Ecological Succession


What is ecological succession
What is Ecological Succession?

  • 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

  • First, lichens that do not need soil to survive grow on rocks

  • Next, mosses grow to hold newly made soil

  • Known as PIONEER SPECIES


  • Pioneer species
    Pioneer Species

    Low, growing moss plants trap moisture and prevent soil erosion

    Lichens break down rock to form soil.


    Primary succession1
    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


    Primary succession2
    Primary Succession

    • Simple plants like mosses and ferns can grow in the new soil


    Primary succession3
    Primary Succession

    • The simple plants die, adding more organic material (nutrients to the soil)

    • The soil layer thickens, and grasses, wildflowers, and other plants begin to take over


    Primary succession4
    Primary Succession

    • These plants die, and they add more nutrients to the soil

    • Shrubs and trees can survive now


    Primary succession5
    Primary Succession

    • Insects, small birds, and mammals have begun to move into the area

    • What was once bare rock, now supports a variety of life


    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


    Climax community
    Climax Community

    • A stable group of plants and animals that is the end result of the successionprocess

    • Does not always mean big trees

      • Grasses in prairies

      • Cacti in deserts


    Group practice
    Group Practice

    • Work in 12 inch voices


    Exit ticket
    Exit Ticket

    • You have 3 minutes for the exit ticket


    ad