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