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Chapter 1: Understanding Ecology

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Chapter 1: Understanding Ecology Notes What is Ecology? Ecology is the branch of science that deals with the complex relationships between living things and their ... – PowerPoint PPT presentation

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Title: Chapter 1: Understanding Ecology


1
Chapter 1 Understanding Ecology
  • Notes

2
What is Ecology?
  • Ecology is the branch of science that deals with
    the complex relationships between living things
    and their environment.
  • For example, we depend upon plants for both food
    AND shelter. (wood)

3
Ecology vs. Environmentalism
  • Ecology is a science.
  • Environmentalism or the Environmental Movement is
    a strong concern for the environment. It is
    based on emotions, values, beliefs, and politics.
  • Ecologists attempt to NOT make decisions based on
    moral values and emotions, but environmentalists
    do.

4
Understanding by Organizing
  • Biologists like to classify animals according to
    taxonomic groups (species, genus, family,
    etc.SEE PAGE 7).
  • Ecologists organize things a little bit
    differently. Again, see page 7.
  • Their classification system starts at organism,
    then population, then community, then ecosystem,
    then ecosphere.

5
What is an ecosystem?
  • An ecosystem is any partially-contained
    environmental and living system.
  • For example, a lake, a forest, a large valley or
    a desert are all examples of ecosystems.
  • It comprises ALL living organisms AND the rocks,
    soil, buildings, etc.
  • Take a look at the info on the top of page 8
    about balanced and unbalanced ecosystems.

6
Pollution
  • Pollution is when harmful materials come into
    contact with life-sustaining resources such as
    water or soil.
  • What examples can you think of when something has
    been polluted? (Hintthere are some examples on
    pages 10-14)
  • The Law of Conservation of Matter says that
    nothing can be created nor destroyed (it can only
    change form)So pollution can not be
    destroyedthe moral of the story is we should
    PREVENT pollution because we cannot get rid of
    it. We can only change its form. (Recycling!) ?

7
Conservation of Natural Resources
  • Because of the Law of Conservation of Matter, it
    would just be easier to NOT use something, than
    to have to recycle or re-use it. This is
    conservation of natural resources.
  • There are two types of people who discuss how our
    resources should be used conservationists and
    preservationists.
  • Preservationists say that we should prevent
    humans from using these resources. (Like, we
    should NOT be able to cut down trees in a forest
    for wood or paper.)
  • Conservationists would say that we CAN use
    resources, as long as we are smart about it and
    dont use them up. (Logging is OK, but cut down
    only every third tree, and plant some more while
    you are at it.)
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