intro to ecology

intro to ecology

1. Organismal ecology

2. Population ecology

3. Community ecology

4. what determines the distribution and abundance of organism?

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

5. Ecosystem ecology

6. Global ecology

7. the levels of ecological study

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