intro to ecology

Organismal ecology
Population ecology
Community ecology
what determines the distribution and abundance of organism?
1. abiotic factors
  1. temperature, precipitation, soil etc
    1. global climate patterns
      1. temperature
        equator is hot; poles is cold
      2. precipitation
        Hadley cells
        rain shadow effects due to mountain and oceans
      3. seasonality
2. biotic factors
  1. parasites, competition, symbiotic, predation etc
3. past and present abiotic and biotic factors interact
  1. determine how global climate patterns influence biomes
    1. Terrestrial biomes
      1. Tropical wet forests
        high species diversity
      2. Subtropical deserts
        slow growth
      3. Temperate
        forests
        seasonal growth
        grassland
        seasonal growth
      4. Boreal forests (taiga) ; north canada..
        low productivity, high biomass
      5. Arctic tundra (permafrost)
        northen hemisphere arctic region
        low productivity
    2. Aquatic biomes
      1. Salinity
      2. Water depth
        wavelength
        photosynthesis
      3. Water turbidity
        cloudiness
      4. Water flow
        ocean upwelling
        lake turnover
      5. freshwater biomes
        lake, ponds
        wetlands
        streams ( creek, river)
      6. ocean biomess
      7. Estuary
  2. influence present patterns
    1. dispersal ability
      1. wallace line
  3. influenced by human activities
    1. transport new species (exotic species which is non-native) to new location
      1. one who is invasive would eliminates natives
        (competes w/ native, prey on native, bring pathogens to native)
Ecosystem ecology
Global ecology
the levels of ecological study

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intro to ecology

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	Created by Kahlen Ng over 9 years ago