Geo2:Lecture 1

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Author:
dante01
ID:
198239
Filename:
Geo2:Lecture 1
Updated:
2013-02-05 20:25:48
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Midterm
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study
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  1. Why is there so much biodiversity in tropical rainforests?
    • -Near equator
    • -alot of rain and sun, allows plants to grow
  2. What is biodiversity?
    -Variability among living organisms from all sources, including terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part
  3. Ecosystems
    • -Complex set of interactions between biotic and abiotic factors which create characteristic functional units
    • -(eg. vegetation, soils, wildlife communities, wetlands, forests)
  4. Biogeography
    -study of the patterns and mechanisms of distribution of living organisms across space and time
  5. Important concepts in Biogeography
    • •Pattern and Process 
    • •Space and Time 
    • •Scale
    • •Two great engines: 
    • –Evolution 
    • –Plate tectonics
  6. What factors determine the spatio-temporal distributions of organisms?
    • -ruled by history and chance
    • 1. Physical
    • -climate
    • -topography
    • -soils
    • -disturbance
    • 2. Biological
    • -competition
    • -predation
    • -symbiosis
    • -dispersal
  7. Stochasticity
    -different climatic events affect different species and different regions of the world

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