BI-100

Card Set Information

Author:
almgimenez
ID:
86076
Filename:
BI-100
Updated:
2011-05-16 06:41:17
Tags:
Environmental biology
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Description:
test
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  1. Endemic
    Found nowhere else but in a certain location
  2. Indigenous
    Occurs naturally, but found in other locations
  3. Biography
    the study of the distribution and diversity of living organisms
  4. Zoogeography
    The study of animal distribution and diversity
  5. Phytogeograpy
    The study of plant ditribution and diversity
  6. Biodiversity
    • Total # of species in an ecosystem
    • Habitat loss causes extinction and loss of biodiversity
    • High genetic diversity = high diversity
  7. Renewable
    Supply is replenished

    Living- Animals (fish,livestock) Plants (food crops, lumber, biofuels, etc.)
  8. Non-renewable
    • Exist in fixed quantities
    • May take thousands of years to replenish
    • - metals, fossil fuels, nuclear energy cources
  9. Maximum Sustainable Yield
    • Point where population size has the fastest replacement rate
    • Usually middle of the exponential phase
  10. Marine Protected Area Locations (MPA)
    • Piti bomb holes/ Tepungan Bay
    • Tumon Bay
    • Sasa Bay
    • Achang Bay
    • Pati Point
  11. How much freshwater on Earth?
    • 97% of water on earth is salt water
    • 3% is freshwater by 70% is trapped as ice
    • <1% is available for human consumption
  12. Traditional sources of water
    • Water catchments
    • Springs and caves
    • Surface water/runoff
  13. Primary sewage treatment
    • Separates solids and liquids
    • Solids are collected while liquids are discharged
  14. Secondary sewage treatment
    • Waste is treated to further break down organic matter
    • Wastewater is then discharged
  15. Terchiary sewage treatment
    Wastewater treated such that organic material and nutrients are removed
  16. Point source waste water pollution
    • Pollution is FOCUSED at a dedicated discharge point
    • Examples:
    • Sewage outfalls, storm drains, Canals for toxic waste
  17. Non-point source water pollution
    • Pollution is DIFFUSE; no clear discharge point
    • Examples:
    • Agricultural and urban runoff, damaged sewer lines, percolation of chemicals into groundwater
  18. Global average temperature 120 years ago
    56.9 F
  19. Global average temperature in 2005
    57.97 F
  20. The Greenhouse Effect
    • 10% of sunlight reaches Earth's surface
    • 90% gets reflected back to space by upper part of atmosphere
    • - The 10% that reaches Earth's surface is then radiated back to space slowlyas heat
    • Green house gases absorb heat and make radiation of heat to space proceed more slowly
  21. Kyoto Protocol in 1997
    • Sought to reduce global CO2 emissions
    • Called for a worldwide reduction of emissions of carbon-based gases by an average 5.2% below 1990 levels by 2012
  22. Why is polar ice so important?
    • Polar ice reflects 90% of sunlight which lands on it
    • Land reflects only 20% of sunlight and absorbs approximately 80%
    • However, seawater has ahigh heat capacity
    • -Reflects 10% of sunlight
    • -Absorbs 90% of sunlight
    • -- This energy is radiated back as heat
  23. Predicted effects of Global warming in Micronesia
    • Increased sea level
    • Drier climate in areas which exhibit a tendency to be dry during El Nino periods
    • Loss of corals through ocean acidification
    • Thinner freshwater lens systems

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