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Principles of Ecology

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Principles of Ecology What Is Ecology * Ecology Is the scientific study of interactions among organisms and between organisms and their environment or surroundings. – PowerPoint PPT presentation

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Date added: 3 July 2020
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Title: Principles of Ecology


1
Principles of Ecology
  • What Is Ecology

2
Ecology
  • Is the scientific study of interactions among
    organisms and between organisms and their
    environment or surroundings.
  • Ernst Haeckel, 1866

3
Biosphere
  • All parts of the planet where life exists
  • Land
  • Water
  • Down 11 Kilometers
  • Air
  • Up 8 Kilometers

4
Earths Biosphere
  • Includes
  • Lithosphere
  • soil rocks
  • Atmosphere
  • gases
  • Hydrosphere
  • water (liquid, frozen, fresh, salt)

5
Earths Biosphere
  • Nothing enters
  • except sunlight
  • Nothing leaves
  • except heat
  • 1 converted into chemical energy
  • 170 Billion Tons of Organic Matter per year

6
Levels of Organization
  • Key Concept
  • To understand relationships within the biosphere
    ecologists ask questions about events and
    organisms that range in complexity from a single
    individual to the entire Biosphere.

7
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8
Levels of Organization
  • Species
  • Group of organisms that can reproduce
  • Population
  • Groups of individual that live in the same area
  • Communities
  • Different populations that live in a defined area

9
Levels of Organization
  • Ecosystem
  • Collection of all organisms that live in a
    particular place, and the non-living environment
  • Biome
  • Group of ecosystems that have the same climate
    and dominate communities.

10
Levels of Organization
  • Biosphere
  • Spaceship Earth
  • All Living Non-Living Elements Contributing To
    Life On This Planet

11
Ecological Methods
  • Key Concept
  • Regardless of the tools they use, scientists
    conduct modern ecological research using
  • Observing
  • Experimenting
  • Modeling
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