Ecosystems: Let’s Review Nature’sFour Principles of Sustainability• Reliance on solar  energy• Biodiversity• Population Co...
Let’s Look at Species by The Numbers
What Does This Look Like As Far As             Percent?• 53% Insects (plus 20% “all other animals”)• 4% Protists          ...
How are     organisms     distributed?•   Population: a group of    interacting organisms of the    same species.•   Commu...
How are Communities Made Up?• Producers: autotrophs like plants take solar  energy and convert it into plant tissue and  h...
Biomes- large regions with specific  species adapted to the climates that       characterize these regions• Tundra• Conifer...
Biomes- large regions with specific  species adapted to the climates that       characterize these regions• Tundra• Conifer...
Biomes- large regions with specific  species adapted to the climates that       characterize these regions• Tundra• Conifer...
Biomes- large regions with specific  species adapted to the climates that       characterize these regions• Tundra• Conifer...
More Biomes...• Grasslands• Desert
More Biomes...• Grasslands• Desert
Range of Tolerance: variations in light,salinity, pH, temperature, moisture, and D.O.    within which an organism can surv...
Energy Flow in Ecosystems       Diatoms                                           CopepodHumpback      Humpback           ...
Pyramid of Energy: Second Law of  Thermodynamics only allows 10% energy       transfer to each trophic level    Humpback  ...
Food Web: those who eat v. those who get eaten
Biogeochemical Cycles: Focus on        Nitrogen and Phosphorus              Nitrogen Cycle (78% of              the atmosp...
Nitrogen Cycle-Human Impacts• Hubbard Brook Study  (NH)***• NO added by internal  combustion engine• N O from livestock   ...
Nitrogen Cycle-Human Impacts• Hubbard Brook Study  (NH)***• NO added by internal  combustion engine• N O from livestock   ...
Phosphorus Cycle• Not part of the atmosphere• Soil, rock, guano deposits• terrestrial and marine origins• cycling is slow ...
Phosphorus Cycle-    Human Impacts• Overuse of phosphate fertilizers• Decrease in soil phosphorus in tropics  because of d...
Remote Sensing, GIS, and Technology• GIS- Geographic Information Systems • Integrated maps of watersheds, forest    cover,...
Ecosystems
Upcoming SlideShare
Loading in …5
×

Ecosystems

501 views
432 views

Published on

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
501
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
18
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • Ecosystems

    1. 1. Ecosystems: Let’s Review Nature’sFour Principles of Sustainability• Reliance on solar energy• Biodiversity• Population Control• Nutrient Cycling
    2. 2. Let’s Look at Species by The Numbers
    3. 3. What Does This Look Like As Far As Percent?• 53% Insects (plus 20% “all other animals”)• 4% Protists Endangered Northern• 4% Fungi Right Whale and Calf• 1% Prokaryotes• 18% Plants
    4. 4. How are organisms distributed?• Population: a group of interacting organisms of the same species.• Community: populations of different species that live and Wetland interact in a given area.• Ecosystem: a community of organisms that interact with their non-living environment.
    5. 5. How are Communities Made Up?• Producers: autotrophs like plants take solar energy and convert it into plant tissue and high energy compounds• Consumers: heterotrophs eat producers for energy and to build tissue.• Decomposers: a heterotroph that breaks down dead producers and consumers for energy and recycles nutrients.
    6. 6. Biomes- large regions with specific species adapted to the climates that characterize these regions• Tundra• Coniferous Forest• Deciduous Forest• Tropical Rainforest
    7. 7. Biomes- large regions with specific species adapted to the climates that characterize these regions• Tundra• Coniferous Forest• Deciduous Forest• Tropical Rainforest
    8. 8. Biomes- large regions with specific species adapted to the climates that characterize these regions• Tundra• Coniferous Forest• Deciduous Forest• Tropical Rainforest
    9. 9. Biomes- large regions with specific species adapted to the climates that characterize these regions• Tundra• Coniferous Forest• Deciduous Forest• Tropical Rainforest
    10. 10. More Biomes...• Grasslands• Desert
    11. 11. More Biomes...• Grasslands• Desert
    12. 12. Range of Tolerance: variations in light,salinity, pH, temperature, moisture, and D.O. within which an organism can survive.
    13. 13. Energy Flow in Ecosystems Diatoms CopepodHumpback Humpback Herring
    14. 14. Pyramid of Energy: Second Law of Thermodynamics only allows 10% energy transfer to each trophic level Humpback 100 kCal Herring 1000 kCal Copepod 10,000 kCalDiatom 100,000 kCal
    15. 15. Food Web: those who eat v. those who get eaten
    16. 16. Biogeochemical Cycles: Focus on Nitrogen and Phosphorus Nitrogen Cycle (78% of the atmosphere is N2)Nitrogen Fixation: N2 NH3 Plants AnimalsNitrification: NH3 NO2 NO3 Plants Animals Bacteria drive this process
    17. 17. Nitrogen Cycle-Human Impacts• Hubbard Brook Study (NH)***• NO added by internal combustion engine• N O from livestock 2 waste and fertilizer• NO 3 from fertilizers
    18. 18. Nitrogen Cycle-Human Impacts• Hubbard Brook Study (NH)***• NO added by internal combustion engine• N O from livestock 2 waste and fertilizer• NO 3 from fertilizers
    19. 19. Phosphorus Cycle• Not part of the atmosphere• Soil, rock, guano deposits• terrestrial and marine origins• cycling is slow mostly PO 4
    20. 20. Phosphorus Cycle- Human Impacts• Overuse of phosphate fertilizers• Decrease in soil phosphorus in tropics because of deforestation• Eutrophication caused by phosphates in wastewater reaching aquatic ecosystems
    21. 21. Remote Sensing, GIS, and Technology• GIS- Geographic Information Systems • Integrated maps of watersheds, forest cover, species distribution, human activities• Satellite imagery • GOMoos http://gomoos.org

    ×