quadrants

• Who is conducting the investigation on the population size of daisies?

  Dr. Acton
• What is the purpose of using a quadrat in this investigation?

  To estimate the population size of daisies in the field
• What shape is the field approximated to for the area calculation?

  Rectangle
• How is the area of the field calculated?

  By multiplying the length and width
• What is the total area of the field measured?

  620 meters squared
• What is the recommended percentage of the total area to sample?

  5 to 10%
• How many positions should be sampled if aiming for 5 to 10% of 620 meters squared?

  30 positions
• What is the unique species of flower being counted in the quadrat?

  Daisius paper Alice
• How do you determine if a daisy should be counted in the quadrat?

  If over half of the flower is within the quadrat
• How many daisies were counted in the quadrat during the investigation?


  6 daisies
• What is the mean average of daisies per meter squared calculated in the investigation?

  7 daisies per meter squared
• How do you estimate the total population of daisies in the field?

  By multiplying the mean average by the total area
• What is the estimated total population of daisies in the field?

  4,340 daisies
• What method can be used to compare population sizes in different areas?

  Random sampling
• What is the purpose of using a transect in this investigation?

  To observe how population density varies between two points
• How is the transect set up for sampling?

  By laying a tape measure along the area
• At what intervals is the quadrat placed along the transect?

  1 meter intervals
• What is recorded when the quadrat is placed at each interval along the transect?

  The number of organisms present
• What trend was observed in the population density of daisies with distance from the gate?

  The number of daisies per meter squared increases with distance from the gate
• What is the most likely cause of the observed trend in daisy population density?

  People trampling them as they walk through the gate
• What is a biotic factor in the context of this investigation?

  Factors due to living organisms
• What are abiotic factors?

  Factors that are not due to living things
• Give examples of abiotic factors mentioned in the study material.

  Light intensity or pH of the soil