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Anthropogenic Effects and Conservation

Anthropogenic Effects and Conservation. The Human Problem. Humans are causing the next great extinction wave in animals And they are doing so by drastically altering their environment. . The Human Problem. And a lot of the current focus is on freshwater and marine environments

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Anthropogenic Effects and Conservation

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  1. Anthropogenic Effects and Conservation

  2. The Human Problem • Humans are causing the next great extinction wave in animals • And they are doing so by drastically altering their environment.

  3. The Human Problem • And a lot of the current focus is on freshwater and marine environments • What we think of as normal in terrestrial systems is already actually a highly modified system

  4. The Human Problem • And this is true of oceans too

  5. The Human Problem • But these impacts are getting worse especially for ecosystem engineering species Seagrasses declining at a rate of 7% per year

  6. Impacts to Ocean Environments • Agriculture • Eutrophication and Chemical Residues

  7. Impacts to Ocean Environments • Industrial development and CO2 • Greenhouse effect and warming • Changing species distributions

  8. Impacts to Ocean Environments • Industrial development and CO2

  9. Impacts to Ocean Environments • Fishing

  10. Additive or Synergistic Impacts • And alone many systems have redundancies that might help prevent ecosystem crashes

  11. Additive or Synergistic Impacts • But together, the impacts of these pressure overload the system and shift it to a “new normal” Nutrients

  12. Behavioral Impacts • Obviously our impacts affect the health and survival of animals • But how do they affect their behavior?

  13. Behavioral Impacts • Eutrophication

  14. Pesticides • W-water • A-Acetone Control • Numbers- concentration in mg/L of Carbaryl

  15. Ocean Acidification

  16. Over-fishing impacts • Decline in predator body size affects the landscape of fear

  17. Decline in body size affects the landscape of fear

  18. Using Behavior for Conservation • Assessing habitat preference • Selecting restoration sites or MPAs

  19. Using Behavior for Conservation • Assessing where human impacts are the least • Use Giving Up Densities Create Topographical Maps

  20. Using Behavior For Conservation • Helping to Translocate animals • Cormorants and the bay bridge

  21. Using Behavior For Conservation • Increasing Survival of Translocated animals • In social species, translocating family groups results in higher survival rates

  22. Using Behavior For Conservation • Training hatchery reared animals • Hatchery trout trained to recognize predator odor (PO) by combining it with trout skin extract (TSE) After 21 days

  23. Using Behavior For Conservation

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