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Chapter 50

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Chapter 50 An Introduction to Ecology and the Biosphere I am the Lorax. I speak for the trees. I speak for the trees, for the trees have no tongues. – PowerPoint PPT presentation

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Title: Chapter 50


1
  • Chapter 50 An Introduction to Ecology and the
    Biosphere

I am the Lorax. I speak for the trees. I speak
for the trees, for the trees have no tongues.
2
Ecology
  • The study of interactions between organisms and
    the environment
  • Subfields of Ecology
  • Organismal ecology
  • Population ecology
  • Community ecology
  • Ecosystem ecology
  • Landscape ecology
  • Biosphere

3
Ecology
4
Limiting species distribution
  • Biogeography area limitations
  • Behavior and Habitat Selection relates to
    evolution, adaptation, and the concept of niche
  • Biotic Factors other species herbivory,
    predation, parasitism, disease, competition
    seaweed example
  • Abiotic Factors

5
Abiotic Factors
  • Temperature
  • Water
  • Sunlight
  • Wind
  • Rocks and soil
  • Climate

6
Global climate
  • Precipitation
  • Seasons
  • Wind

7
Aquatic Biomes
8
Aquatic Biomes
  • Lakes
  • Wetlands
  • Streams and Rivers
  • Estuaries
  • Intertital Zone
  • Oceanic Pelagic
  • Coral Reefs
  • Marine Benthic Zone

9
Aquatic Zonation
  • Vertical Stratification
  • Photic zone photosynthetic light
  • Aphotic zone little to no light
  • Benthic zone bottom substrate
  • Littoral zone well lit, open water close to
    shore freshwater only
  • Limnetic zone well lit, open water away from
    shore freshwater only
  • Thermocline narrow stratum of drastic
    temperature change
  • Benthos a community of organisms
  • Detritus dead organic matter, food for the
    benthos

10
Terrestrial Biomes
11
Terrestrial Biomes
  • Tropical Rainforest
  • Desert
  • Savanna
  • Chaparral
  • Temperate Grasslands
  • Temperate Broadleaf Forest
  • Coniferous Forest
  • Taiga
  • Tundra
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