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Ecology

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Ecology What is ecology? The scientific study of interactions between organisms and their environment. Interactions can take place between living and nonliving things. – PowerPoint PPT presentation

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Title: Ecology


1
Ecology
2
What is ecology?
  • The scientific study of interactions between
    organisms and their environment.
  • Interactions can take place between living and
    nonliving things.

3
Abiotic Factors
  • Nonliving parts of environment

Soil
Temperature
Sunlight
Water/Moisture
4
Biotic Factors
  • All the living organisms

5
Levels of Organization in Ecology
  • Organism an individual
  • Population a group of organisms of the same
    species that live in the same place at the same
    time.
  • Community a collection of interacting
    populations
  • Ecosystem interactions of living and nonliving
    things in the community

6
Organism
http//people.uvawise.edu/cte/documents/Science20
Resources/Principles20of20Ecology.pdf
7
Population
http//people.uvawise.edu/cte/documents/Science20
Resources/Principles20of20Ecology.pdf
8
Community
http//people.uvawise.edu/cte/documents/Science20
Resources/Principles20of20Ecology.pdf
9
Ecosystem
http//people.uvawise.edu/cte/documents/Science20
Resources/Principles20of20Ecology.pdf
10
How organisms obtain energy
  • Producers can make own food usually use energy
    from the sun (photosynthesis)
  • 6CO2 6H2O ? C6H12O6 6O2
  • Consumers must eat other organisms cannot make
    own food

11
Different Types of Consumers
  • Herbivore eat only plants
  • Carnivore eat only animals
  • Omnivore eat both plants and animals
  • Decomposer break down and absorb nutrients of
    dead plants and animals
  • Scavenger eat rotting flesh (like road kill)

12
Food Chain
  • Shows how matter and energy move through an
    ecosystem
  • Arrows indicate flow of energy
  • Only a portion of original energy is passed on to
    other organisms in chain (10 each link)
  • Example
  • Algae ? Fish ? Heron

13
Food Web
  • Made up of many food chains
  • Shows all possible feeding relationships in a
    community
  • More realistic than a food chain, because most
    animals eat more than one thing.

14
Identify the 1. Producers   2. Primary
Consumers   3. Secondary Consumers   4.
Herbivores   5. Carnivores   6. Omnivores
http//www.biologycorner.com/resources/foodweb1.gi
f
15
Energy Pyramid
16
(No Transcript)
17
  • Lets check for understanding!
  • Are you ready?

18
Question 1
  • Which of these does not belong to the
  • group?
  • Consumer
  • Human
  • Fish
  • Plant

19
Question 2
  • All energy transformations in an ecosystem begin
    with --
  • A scavenger
  • A decomposer
  • The Sun
  • An herbivore

20
Question 3
  • In a food chain, which are the most efficient
    users of solar energy?
  • Herbivores
  • Carnivores
  • Omnivores
  • Scavengers

21
Question 4
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