Principles of Ecology - PowerPoint PPT Presentation


Title: Principles of Ecology


1
Principles of Ecology
  • Chapter 2

2
Ecology
  • Branch of biology that describes relationships
    between organisms and the environments in which
    they live
  • -eat different foods
  • -seek different shelter
  • -different environment for young

3
Law of Conservation of Matter
  • Applies to everything that exists
  • Most organisms use only those materials that make
    up their food supply
  • Little waste is generated
  • Most waste is recycled through natural processes
  • Human waste is not this way

4
  • We may change them to make them more compatible
    with the environment, but it never goes away
  • Properly dispose of all waste
  • Use fewer materials that are disposable by
    recycling

5
Industrial waste pollution
  • Include harmful chemicals, poisonous metallic
    compounds, acids, and other caustic materials
  • Pollute surface water (rivers, streams, ponds,
    and lakes)
  • Aquatic plants and animals cant survive

6
Effort to reduce
  • Water treatment plants
  • Special equipment in smokestacks
  • Burn combustible portion of solid waste as an
    energy source
  • Trap pollutants when burned (expensive and use
    limited)

7
Pesticide pollution
  • Insecticide used to kill insects
  • Herbicides used to control plants
  • Rodenticide used to poison rodents

8
Petroleum
  • An oily, flammable liquid that occurs naturally
    in large underground deposits
  • -AKA- crude oil
  • -when they leak or spill, it damages land and
    water
  • -law says that underground tanks must regularly
    be inspected for leaks

9
Laws of Energy
  • Energy the ability to do work or to cause
    changes to occur
  • The power or force that enables animals to move
    or the tide to flow
  • Energy cant be recycled but it can be stored for
    later

10
Energy example
  • Solar energy (sunlight) captured by plants
    stored as molecules of sugar and starch eaten
    by animal energy released and allowing animal
    to do work or stored as fat, carbs, or protein
    until needed animal dies energy stored in the
    form of fossil fuels or eaten by decomposers

11
First law of energy
  • States that energy cant be created or destroyed,
    but it can be converted from one form of energy
    to another
  • Exp Radiant energy (sun) to chemical energy
    (sugars and starches) by photosynthesis

12
Second Law of Energy
  • States that every time energy is converted from
    one form to another, some is lost in the form of
    heat
  • Heat lost is not destroyed but is not available
    for later use

13
Carbon Cycle
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Principles of Ecology

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Principles of Ecology Chapter 2 Ecology: Branch of biology that describes relationships between organisms and the environments in which they live -eat different foods ... – PowerPoint PPT presentation

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Title: Principles of Ecology


1
Principles of Ecology
  • Chapter 2

2
Ecology
  • Branch of biology that describes relationships
    between organisms and the environments in which
    they live
  • -eat different foods
  • -seek different shelter
  • -different environment for young

3
Law of Conservation of Matter
  • Applies to everything that exists
  • Most organisms use only those materials that make
    up their food supply
  • Little waste is generated
  • Most waste is recycled through natural processes
  • Human waste is not this way

4
  • We may change them to make them more compatible
    with the environment, but it never goes away
  • Properly dispose of all waste
  • Use fewer materials that are disposable by
    recycling

5
Industrial waste pollution
  • Include harmful chemicals, poisonous metallic
    compounds, acids, and other caustic materials
  • Pollute surface water (rivers, streams, ponds,
    and lakes)
  • Aquatic plants and animals cant survive

6
Effort to reduce
  • Water treatment plants
  • Special equipment in smokestacks
  • Burn combustible portion of solid waste as an
    energy source
  • Trap pollutants when burned (expensive and use
    limited)

7
Pesticide pollution
  • Insecticide used to kill insects
  • Herbicides used to control plants
  • Rodenticide used to poison rodents

8
Petroleum
  • An oily, flammable liquid that occurs naturally
    in large underground deposits
  • -AKA- crude oil
  • -when they leak or spill, it damages land and
    water
  • -law says that underground tanks must regularly
    be inspected for leaks

9
Laws of Energy
  • Energy the ability to do work or to cause
    changes to occur
  • The power or force that enables animals to move
    or the tide to flow
  • Energy cant be recycled but it can be stored for
    later

10
Energy example
  • Solar energy (sunlight) captured by plants
    stored as molecules of sugar and starch eaten
    by animal energy released and allowing animal
    to do work or stored as fat, carbs, or protein
    until needed animal dies energy stored in the
    form of fossil fuels or eaten by decomposers

11
First law of energy
  • States that energy cant be created or destroyed,
    but it can be converted from one form of energy
    to another
  • Exp Radiant energy (sun) to chemical energy
    (sugars and starches) by photosynthesis

12
Second Law of Energy
  • States that every time energy is converted from
    one form to another, some is lost in the form of
    heat
  • Heat lost is not destroyed but is not available
    for later use

13
Carbon Cycle
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