COMMUNITY CHANGE (SUCCESSION) Krebs chap. 21; pages 403-424; 431 “the non-seasonal, directional and continuous pattern of colonization and extinction of.

Slides:



Advertisements
Similar presentations
Ecological Succession: (Important info in blue)
Advertisements

CHAPTER 53 COMMUNITY ECOLOGY Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings Section C2: Disturbance and Community Structure.
Hurricane Katrina Satellite image taken Aug. 29, 2005 Image from
Disturbance and Succession. Intermediate Disturbance Hypothesis Disturbance maintains communities in a "non-equilibrium state" (never reach equilibrium)
Ecological Succession. Ponder this…. Do communities change?
Ecological Succession
Lesson Overview 4.3 Succession.
COMMUNITY CHANGE (SUCCESSION)
Biol 302 succession 1 COMMUNITY CHANGE (SUCCESSION) Krebs cpt. 21; pages ; 431.
Succession study guide
Lesson Overview 4.3 Succession.
Ecological succession is... Two kinds of Succession: Primary & Secondary Primary succession is… Ecological succession is the sequence of community changes.
Section 3: How Ecosystems Change
Ecological Succession Notes
Lecture #2 Ecological Succession Unit 7: Ecology.
How Ecosystems WorkSection 3 Section 3: How Ecosystems Change Preview Bellringer Objectives Ecological Succession.
Ecological Succession –Syllabus Topics to – Describe the concept and processes of succession in a named habitat. –2.3.6 Explain the changes.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Objectives Chapter 5 Section 3 How Ecosystems Change List two examples.
Community Change – Chapter 21. Community Change Sit in an open field or wooded lot, and you will see the community change If we designate a prairie as.
How Ecosystems WorkSection 3 Ecosystems are constantly changing. Ecological succession is a gradual process of change and replacement of the types of species.
Properties of Communities & Succession. Communities & Species Diversity Remember… a community is a group of populations living together is a defined area.
Ecology Notes September 8, 2015
How Ecosystems Change: Ecological Succession ES Textbook, Chapter 5 Pages
Succession.
How Ecosystems Change Ecosystems are constantly changing.
Warm-Up: (1/06/15) Have you ever observed a vacant lot or an untended garden over a period of time? What changes did you see?
Ecological Succession
How Ecosystems WorkSection 3 DAY ONE Chapter 5 How Ecosystems Work Section 3: How Ecosystems Change.
4.3 Succession Chapter Succession Key Questions: 1)How do communities change over time? 2) Do ecosystems return to “normal” following a disturbance?
Lesson Overview Lesson OverviewSuccession Lesson Overview 4.3 Succession.
Succession. THINK ABOUT IT WARM-UP: What would happen to the school grounds if we stopped mowing the grass? What plants and animals would you see… 1.In.
Community Disturbance. Nonequilibrium Model Early ecologists thought of nature as being in equilibrium. Actually, environments are constantly changing.
Ecological succession How communities and ecosystems change.
What Is an Ecosystem?. Interactions of Organisms and Their Environment Ecology is the study of the interactions of living organisms with one another and.
THINK ABOUT IT In 1883, the volcanic island of Krakatau in the Indian Ocean was blown to pieces by an eruption. The tiny island that remained was completely.
ECOLOGICAL SUCCESSION
4.3 Succession *Need book- Pg. 106
Ecological Succession-
Ecological succession
Ecological Succession
Lesson Overview 4.3 Succession.
Ecological Succession
Community Ecology Part 2
Ecological Succession
What Happens Next??.
Section 3: How Ecosystems Change
Ecological Succession
ECOLOGICAL SUCCESSION
Ecology: Succession CP Biology.
Chapter 5 Objectives List two examples of ecological succession.
Section 3: How Ecosystems Change
Community Ecology Part 2
How Ecosystems Change April 21, 2009.
Daily Science Review Concept Check questions from Friday
Ch Community Ecology pp
Succession.
The gradual, sequential regrowth of a community of species in an area is called ecological succession. You can see early stages of succesion in vacant.
Lesson Overview 4.3 Succession.
Lesson Overview 4.3 Succession.
Ecological Succession
Lesson Overview 4.3 Succession.
Section 3: How Ecosystems Change
Succession We will: describe the different types of ecological succession You will: develop an understanding of succession and how ecosystems are constantly.
Community Ecology Part 2
Lesson Overview Succession.
The Super Great Succession Slide Show!
Lesson Overview 4.3 Succession.
Presentation transcript:

COMMUNITY CHANGE (SUCCESSION) Krebs chap. 21; pages ; 431 “the non-seasonal, directional and continuous pattern of colonization and extinction of species populations on a site”

PRIMARY SUCCESSION Mt. St. Helens pp Lake Michigan dunes pp Glacier Bay pp

SECONDARY SUCCESSION Krebs pp Abandoned fields Forest regrowth Abandoned lots

Mount St. Helens Vegetation recovery

Sand dune ecology Vegetation hummock Beach grass

Fig 21.11Profile of Lake Michigan sand dunes succession “SFT” – space-for-time substitution pastpresent

“Polyclimax” sand dune successions Fig

Krebs Fig Ice recession in Glacier Bay, Alaska, since

Alders and cottonwoods covering the hillsides 50 years

Spruce coming into the alder and cottonwood forest 100 years

Spruce and hemlock forest 250 years

Fig 21.9Change in soil-N Topsoil Mineral soil

1 year later Wildfire

Wind disturbance (“blowdowns”)

Opax Mountain Silvicultural Systems Trial (near Kamloops, BC)

Control burning

Control burn plot

Monitoring succession after fire