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Chapter 3 Ecosystem Ecology.

Published bySamuel Newman Modified over 6 years ago

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Presentation on theme: "Chapter 3 Ecosystem Ecology."— Presentation transcript:

1 Chapter 3 Ecosystem Ecology

2

3 Photosynthesis & Cellular Respiration
Need to know inputs and outputs Photosynthesis – captures energy Cellular Respiration - releases

4

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6 NPP = GPP- Respiration Rate

7 Why the difference between ecosystems?

8 Ecological Efficiency

9 Standing Crop vs Productivity

10 Hydrologic Cycle How is it altered by anthropogenic activities?
Deforestation? Pavement?

11 Carbon Cycle Most important element ~20% body weight of organisms

12 Nitrogen Cycle Limiting nutrient DNA, RNA, Proteins

13 FixNAAD ANPAN Process Product Fix (Nitrogen Fixation) Ammonium
Nitrification Nitrates Assimilation Proteins Ammonification Denitrification Nitrogen FixNAAD ANPAN

14 Phosphorus Cycle DNA, RNA, ATP Also limiting factor
P & N = fertilizers

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16 Sulfur Cycle Weathering vs Combustion/Volcanic Gases -

17 Watershed

18 Hubbard Brook Watershed - NH

19 Intermediate Disturbance Hypothesis

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