Presentation is loading. Please wait.

Presentation is loading. Please wait.

I.Intro: Plant responses to elevated CO 2 ? II. Resource limitations of photosynthesis A. CO2 response B. Nutrient response C. Light response curves and.

Published by Modified over 9 years ago

Similar presentations

Presentation on theme: "I.Intro: Plant responses to elevated CO 2 ? II. Resource limitations of photosynthesis A. CO2 response B. Nutrient response C. Light response curves and."— Presentation transcript:

1 I.Intro: Plant responses to elevated CO 2 ? II. Resource limitations of photosynthesis A. CO2 response B. Nutrient response C. Light response curves and light adaptation II. Plant growth strategies A.Allocation and exponential growth B.Resource limitation and optimal foraging C.Plant growth strategies D.Plant photosynthetic strategies IV. Summary: Plant responses = ecosystem responses to elevated CO 2 ? The integrated plant: Ps & growth

2 Körner 2006 I. Intro: plant responses to elevated CO 2 ?

3 Variation in plant growth response to elevated CO 2 Vitousek 1994

4 Genotypic variation in elevated CO 2 response Körner 2000

5

6 II. Resource limitations of photosynthesis

7 Photosynthesis: Light-dependent and light-independent reactions http://www.digitalfrog.com/resources/archives/leaf.jpg

8 A. CO 2 response curve of photosynthesis Chapin et al. 2002 http://www.digitalfrog.com/resources/archives/leaf.jpg

9 B. Nutrient response of photosynthesis

10 C. Photosynthesis responses to light 1. Photosynthetically active radiation (PAR)

11 2. Response of Ps to variation in light Fig. 6.19

12 Sun and shade plant adaptations to light

13 Sun vs. shade plants Fig. 7.21

14 III. Plant growth strategies A. Allocation and exponential growth

15 Körner 2006

16 Nutrient response of plant biomass 18.5

17 B. Resource limitation and optimal foraging 1.Maximize gain of fixed carbon 2.Need other resources to do that 3.Efficiency of resource use (“cost and revenue”) 4.Optimal allocation: co-limitation by multiple resources

18 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Plant life history strategies – Grime’s CSR Figure 12.20 12-15 Source: after Grime 1979

19 N may limit C sequestration globally Hungate et al. 2003 Science

20 D. Plant photosynthetic strategies C3, C4, and CAM photosynthesis READING: pp. 134-139

21 C3 Photosynthesis http://www.digitalfrog.com/resources/archives/leaf.jpg

22 C4 Photosynthesis

23 C4 Distribution

24 CAM Photosynthesis

25 Summary: Do plant = ecosystem responses to CO 2 ? 1. Multiple limitations: New limitations may arise in ecosystem context not seen in individual plant experiments. 2. Allocation: Optimal foraging 3. Different strategies: tradeoffs

26 Controls on plant uptake of CO 2

27 End

Download ppt "I.Intro: Plant responses to elevated CO 2 ? II. Resource limitations of photosynthesis A. CO2 response B. Nutrient response C. Light response curves and."

Similar presentations

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Four Trusses.

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Four Trusses.
The Carbon Cycle 2 I.Introduction: Changes to Global C Cycle (Ch. 15) II.C-cycle overview: pools & fluxes (Ch. 6) III. Controls on GPP (Ch. 5) IV.Controls.

The Carbon Cycle 2 I.Introduction: Changes to Global C Cycle (Ch. 15) II.C-cycle overview: pools & fluxes (Ch. 6) III. Controls on GPP (Ch. 5) IV.Controls.
AGR 4501 PASTURE MANAGEMENT: C3 & C4 PHOTOSYNTHESIS Growth of Grasses & Legumes C3 & C4 photosynthesis.

AGR 4501 PASTURE MANAGEMENT: C3 & C4 PHOTOSYNTHESIS Growth of Grasses & Legumes C3 & C4 photosynthesis.
5 Coping with Environmental Variation: Energy. 5 Coping with Environmental Variation: Energy Sources of Energy Autotrophy Photosynthetic Pathways Heterotrophy.

5 Coping with Environmental Variation: Energy. 5 Coping with Environmental Variation: Energy Sources of Energy Autotrophy Photosynthetic Pathways Heterotrophy.
Fig. 10.1 Photosynthesis.

Fig Photosynthesis.
7-1 Chapter 7 Lecture Outline See PowerPoint Image Slides for all figures and tables pre-inserted into PowerPoint without notes.

7-1 Chapter 7 Lecture Outline See PowerPoint Image Slides for all figures and tables pre-inserted into PowerPoint without notes.
Photosynthesis. 1. An Overview of Photosynthesis & Respiration 2. Autotrophs and producers 3. Electromagnetic Spectrum & light energy 4. Chloroplasts:

Photosynthesis. 1. An Overview of Photosynthesis & Respiration 2. Autotrophs and producers 3. Electromagnetic Spectrum & light energy 4. Chloroplasts:
Photosynthesis: Using Light to Make Food CHAPTER 7  Basics of Photosynthesis o The Chloroplast o Overall Equation o Overview of Process  Light Reactions:

Photosynthesis: Using Light to Make Food CHAPTER 7  Basics of Photosynthesis o The Chloroplast o Overall Equation o Overview of Process  Light Reactions:
03_25 Osmosis Slide number: 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Protein molecule Water molecule.

03_25 Osmosis Slide number: 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Protein molecule Water molecule.
Title Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 18 Image Slides.

Title Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 18 Image Slides.
1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. *See PowerPoint Lecture Outline for a complete, ready-made.

1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. *See PowerPoint Lecture Outline for a complete, ready-made.
Photosynthesis I. The nature of carbon, energy, light, and electrons A. Carbon and energy B. Nature of light C. Nature of electrons II. Leaf and Chloroplast.

Photosynthesis I. The nature of carbon, energy, light, and electrons A. Carbon and energy B. Nature of light C. Nature of electrons II. Leaf and Chloroplast.
Course goals 1)Have you develop a firm understanding of the concepts and mechanisms of ecosystem ecology; 2)Have you enhance your understanding of how.

Course goals 1)Have you develop a firm understanding of the concepts and mechanisms of ecosystem ecology; 2)Have you enhance your understanding of how.
1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. *See PowerPoint Lecture Outline for a complete, ready-made.

1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. *See PowerPoint Lecture Outline for a complete, ready-made.
Ecology: Lecture 3 Plant adaptations to the light environment (Physiological Ecology)

Ecology: Lecture 3 Plant adaptations to the light environment (Physiological Ecology)
Photosynthesis I. Preview of photosynthesis II. Photosynthetic reactions III. Light dependent reactions IV. Light independent reactions V. Summary of.

Photosynthesis I. Preview of photosynthesis II. Photosynthetic reactions III. Light dependent reactions IV. Light independent reactions V. Summary of.
I.1 ii.2 iii.3 iv.4 1+1=. i.1 ii.2 iii.3 iv.4 1+1=

I.1 ii.2 iii.3 iv.4 1+1=. i.1 ii.2 iii.3 iv.4 1+1=
1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. PowerPoint to accompany CONCEPTS IN BIOLOGY TWELFTH EDITION.

1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. PowerPoint to accompany CONCEPTS IN BIOLOGY TWELFTH EDITION.
III. Life Histories III. Life Histories (Chap. 12) A. Life history traits B. Tradeoffs in resource allocation C. Life history strategies A. Life History.

III. Life Histories III. Life Histories (Chap. 12) A. Life history traits B. Tradeoffs in resource allocation C. Life history strategies A. Life History.
3)What makes a species invasive? b) Environmental Change Hypothesis Global Changes Increasing atmospheric CO 2 Keeling & Whorf (2004) CDIAC.

3)What makes a species invasive? b) Environmental Change Hypothesis Global Changes Increasing atmospheric CO 2 Keeling & Whorf (2004) CDIAC.

Similar presentations

Ads by Google