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8.1 Species Abundance, Diversity, and Biodiversity in Ecological Communities

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Introduction to Ecology

  • Levels of Ecological Study
    05:01
  • Introduction to Ecology Example 1
    02:31
  • Environment vs. Habitat vs. Niche
    01:57

Introduction to Terrestrial Biomes

  • Introduction to Terrestrial Biomes Example 2
    01:29
  • Introduction to Terrestrial Biomes
    01:55
  • Introduction to Terrestrial Biomes Example 1
    00:49

Terrestrial Biomes: Near Equator

  • Terrestrial Biomes: Near Equator Example 1
    03:03
  • Savannas (Tropical Grasslands)
    01:02
  • Tropical Rainforests
    01:22

Terrestrial Biomes: Temperate Regions

  • Temperate Grasslands (Prairie/Steppe)
    00:51
  • Terrestrial Biomes: Temperate Regions Example 1
    01:59
  • Temperate Broadleaf/Deciduous Forests
    01:00

Introduction to Aquatic Biomes

  • Zonation in Marine Biomes & Lakes
    04:38
  • Seasonal Turnover & Ocean Upwelling
    03:57
  • Introduction to Aquatic Biomes Example 3
    03:00

Freshwater Aquatic Biomes

  • Wetlands
    01:29
  • Estuaries
    01:51
  • Streams & Rivers
    01:41

Marine Aquatic Biomes

  • Intertidal Zones
    01:43
  • Coral Reefs
    01:30
  • Marine Benthic Zone
    01:47

Introduction to Community Ecology

  • Introduction to Community Ecology
    02:03

Community Structure

  • Community Structure Example 3
    02:22
  • Community Structure Example 1
    03:37
  • Community Structure
    04:25

Community Interactions: Competition (-/-)

  • Resource Partitioning (Partial Niche Overlap)
    03:57
  • Competitive Exclusion Principle (Complete Niche Overlap)
    04:23
  • Community Interactions: Competition (-/-) Example 1
    04:23

Community Interactions: Exploitation (+/-)

  • 1) Exploitation (+/-): Predation
    01:42
  • 3) Exploitation (+/-): Parasitism
    02:37
  • Community Interactions: Exploitation (+/–)
    00:49

Community Interactions: Mutualism (+/+) & Commensalism (+/0)

  • Positive Interactions
    02:56
  • Summary of Community Interactions
    01:52

Community Dynamics

  • Disturbances Make Communities Dynamic
    03:37
  • Secondary Ecological Succession
    02:31
  • Effects of Early-Arriving Species on Late-Arriving Species
    01:34

Conservation Biology

  • Biodiversity Hotspots and Endangered Species
    04:32
  • Biodiversity and Sustainability
    05:06
  • Pollution and Climate Change
    03:36