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Ecology  Community
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Ecology Community

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Ecology  Community Ecology Community Presentation Transcript

  • Community Ecology How species interact with each other.
  • Types of Interactions
    • Predator-Prey
    • Parasitism
    • Competition
  • Predator-Prey
    • A consumer hunts and eats another consumer
    • Many factors come into play
    • Natural Selection Arms Race
  • Defense Mechanisms
    • Synthesis of Poisons
    • Synthesis of Bitter chemicals
    • Evolution of Spines
    • Mimicry
    • Herbivore-Plant interactions follow a similar patters
  • Parasite-Host
    • Host is harmed while parasite benefits
    • Ectoparasite- live outside the body
    • Endoparasite- live inside the body
    • Do not try to kill host only weaken
  • Competition
    • Caused by a fundamental niche overlap
    • Often the cause of realized niche placement (competitive exclusion)
    • Result in community structure
  • Symbiosis
    • Mutualism- cooperative relationship where both organisms benefit
      • EX: Lichens
    • Commensalisim- relationship where one organisms benefits but the other is not helped nor harmed
      • EX: Cattle Birds
  • Succession
    • Organisms appear in a specific sequence in areas where there was initially no life.
    • A certain pattern of growth takes place
    • Differs based on circumstances surrounding clearing
  • Food webs
  • Water Cycle
  • Carbon Cycle
  • Nitrogen Cycle
  • Biomes