Lab Concept Exam, Semester 1

Species Diversity Index- calculate the SDI, you will be given the formula
  • Given a list of organims present in an area, calculate the diversity index of each area. You will be given the formula- just know how to use it.
  • Be able to assess which area is more diverse than another area
  • List why biodiversity is valuable to an environment
  • Describe human practices that decrease biodiversity

  • Draw a population histogram/pyramid given data of cohort sizes
  • Draw a survivorship curve given data on number of organisms surviving from year to year
  • Describe the predator-prey cycle and be able to interpret a graph of this cycling interaction
  • Calculate doubling time, growth rate, birth rate, death rate, given crude data
  • Suggest/outline an experiment to monitor population growth rate and r- vs. k- selected species

Water Quality
  • Describe the procedure for Biological Water Quality Sampling
    • bacteria test
    • macroinvertebrate test
  • Describe the procedure for Chemical Water Quality sampling
    • DO
    • Phosphorus
    • Nitrogen
    • Temperature
    • Chlorine
    • pH
    • Turbidity
  • Explain eutrophication using a bulleted list of steps (the series of ecological changes) and using a graph (show by graphing what happens to each component of the aquatic environment during eutrophication

  • Indicate the series of primary succession
  • Indicate the series of secondary succesion
  • Describe the difference between primary and secondary succession
  • List typical plants present during stages of succession (pioneer community --> climax community)

Sampling methods
  • Describe appropriate technique used to sample moving vs. non-moving communities
    • mark and recapture
    • quadrat
    • transect sampling

Ecological Interactions
  • Be able to draw a food web and label it using appropriate vocabulary
  • Determine the keystone species from a provided food web or information about community interactions