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CHAPTER 50 AN INTRODUCTION TO ECOLOGY AND THE BIOSPERE

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CHAPTER 50 AN INTRODUCTION TO ECOLOGY AND THE BIOSPERE Or The blue, the green, and everything in between. Earth-set The scope of ecology What is ecology? – PowerPoint PPT presentation

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Title: CHAPTER 50 AN INTRODUCTION TO ECOLOGY AND THE BIOSPERE


1
CHAPTER 50AN INTRODUCTION TOECOLOGY AND THE
BIOSPERE
  • OrThe blue, the green, and everything in
    between.

2
Earth-set
3
The scope of ecology
  • What is ecology?
  • Ecology studies the distribution and abundance of
    organisms and their interactions with the
    environment.

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What affects organisms?
  • Abiotic Factors
  • Biotic Factors
  • Organisms are affected by and affect both the
    abiotic and biotic components of their
    environment.

7
Evolution and Ecology are closely linked.
  • Including how organisms respond and how they are
    distributed
  • Events occurring in ecological time
  • (minutes, months, years)
  • translate into effects over the longer scale of
    evolutionary time
  • (decades, centuries, millennia, and longer).

8
Definitions
  • Organismal ecology
  • Population
  • Population ecology
  • Community
  • Community ecology
  • Ecosystem
  • Ecosystem ecology
  • Landscape ecology
  • A landscape or seascape

9
Rachel Carson
  • Precautionary principal
  • Look before you leap

10
Species Distribution
  • Limiting factorDispersal
  • Increased by human transplantation

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Climagraph and distribution
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Aquatic Biomes
  • Marine
  • Intertidal
  • Coral Reefs
  • Pelagic
  • Benthos
  • Freshwater
  • Wetlands
  • Estuaries

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Water Cycling
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Most species have small geographic ranges
  • Only a small minority of species are widespread.

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