Integrative Biology 102: Lecture Outline
Energy Flows, Matter Cycles


Lecture Objectives

By the end of this lecture and reading the text, you should be able to:

  1. give examples of biotic and abiotic components within an ecosystem.
  2. contrast and explain the flow of energy and the cycling of matter in ecosystems.
  3. give an example of a food web.
  4. list the four basic types and functions of organic compounds in living organisms.
  5. describe and diagram the carbon and nitrogen cycles.
  6. list the anthropogenic changes to these cycles and describe the effects of these changes.
  7. explain the concept of limiting factors.

Reading: Ch. 3.


Terms
  • omnivore
  • herbivore
  • carnivore
  • biomass
  • population
  • food chain
  • trophic levels
  • community
  • energy pyramid
  • biogeochemical cycle
  • nitrogen fixation
  • nitrification
  • denitrification

Movies:
Carbon Cycle Cartoon
Carbon Cycle and Global Warming
CO2 emissions
Greenhouse gas
Global warming warning
Consequences of Global Warming
Nitrogen Cycle
Nitrogen Cycle Out of Whack


1.  Levels of organization in the natural world





2.  Abiotic components of ecosystems
 


3. Energy flows

 

 

 

 

 





 

 

 

4. Matter cycles


















5. Ecosystem services

 

 


For the next lecture on Community Relationships, read Ch. 4.

Be ready to answer these questions: