1 / 12

Chapter 3 Ecosystem Disturbances

Chapter 3 Ecosystem Disturbances. How do disturbances affect the flow of energy and matter in the ecosystem? . http://oceana.org/en/our-work/climate-energy/ocean-acidification/learn-act/what-is-ocean-acidification. http://water.epa.gov/type/watersheds/named/msbasin/hypoxia101.cfm.

torn
Download Presentation

Chapter 3 Ecosystem Disturbances

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 3 Ecosystem Disturbances How do disturbances affect the flow of energy and matter in the ecosystem?

  2. http://oceana.org/en/our-work/climate-energy/ocean-acidification/learn-act/what-is-ocean-acidificationhttp://oceana.org/en/our-work/climate-energy/ocean-acidification/learn-act/what-is-ocean-acidification

  3. http://water.epa.gov/type/watersheds/named/msbasin/hypoxia101.cfmhttp://water.epa.gov/type/watersheds/named/msbasin/hypoxia101.cfm

  4. Natural Ecosystem Disturbances • Hurricanes • Ice storms • Tsunamis • Tornadoes • Volcanic eruptions • Forest fires

  5. Anthropogenic Disturbances • Human settlement • Agriculture • Air pollution • Clear cutting of forests • Mountaintop removal for coal mining

  6. How do environmental scientists study ecosystem disturbance? • 1. Scientists must learn about the natural rates of cycling and the factors that influence those rates. • 2. Scientists examine changes that occur in a small confined area as a model for changes on a larger scale.

  7. Hubbard Brook Experimental Forest • Watershed comparisons determined that clear cutting released nutrients from the ecosystem into the river at a greater rate than the comparison watershed.

  8. Watersheds 4 & 5

  9. Resistance vs Resilience • Resistance = how much disturbance effects flow of matter and energy • Resilience = rate of return to original state

  10. Restoration Ecology • Florida Everglades • Chesapeake Bay • City Park New Orleans

  11. What is the role of disturbance in an ecosystem?

  12. What services do ecosystems provide? Pgs 77 - 80 • Cultural services • Regulating services • Resilience • Provisions • Support systems

More Related