Science: Simulating Methods to Estimate Population Size

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1

Estimating Population Cover With Transects: Answer the questions for Activity ??? on the Questions sheets

0.5

Estimating Population Cover With Transects: At every ???-centimeter interval, determine what color square the transect line is touching

10

Estimating Population Cover With Transects: Calculate the class average percent cover using the data for all ??? groups.

0.5

Estimating Population Cover With Transects: Draw a small dot every ??? centimeter along each transect.

0.0

Estimating Population Cover With Transects: Find the ???-cm starting point of the first transect drawn, and note color of the square the transect line is touching.

1

Estimating Population Cover With Transects: Record the color of the square in the "Transect Group Data" table on your data sheet (Transect ???, 0.0 cm)

10

Estimating Population Cover With Transects: Using the ruler and marker, make five ???-cm lines, or transects, on the Population Sheet.

2

Estimating Population Density Using Quadrats: Answer the questions for Activity ??? on the Questions sheets.

5

Estimating Population Density Using Quadrats: Calculate the average density of red squares and green squares per 6.25 cm^2 by dividing the total number of individuals of each color (from all quadrats) by the total number of quadrats, which is ???.

6.25

Estimating Population Density Using Quadrats: Calculate the density per square centimeter by dividing the average density of red squares and green squares by the area of one quadrat, which in this case is ??? cm^2.

3.0

Estimating Population Density Using Quadrats: Continue another ??? cm along the stem, and then cut the stem with scissors.

1000

Estimating Population Density Using Quadrats: For example, if each 1 m^2 quadrat contains an average of 10 individuals of one species, then an area that is 1 km^2 or ??? m^2, should contain approximately 10,000 individuals.

3.0

Estimating Population Density Using Quadrats: From the end of one of the stems, measure ??? cm, and then bend the stem at a right angle.

6.25

Estimating Population Density Using Quadrats: Make a ???-cm^2 quadrat using the chenille stem.

0.5

Estimating Population Density Using Quadrats: Overlap the bent stems to create a square with ends that overlap one another by ??? cm.

0.5

Estimating Population Density Using Quadrats: Quadrats in the field usually measure ??? m^2 or 1 m^2, although they may be any size.

2

Estimating Population Density Using Quadrats: Record the number of red squares and the number of green squares in the table for Activity ??? on the data sheet.

2

Estimating Population Density Using Quadrats: Record this information in the data table for Activity ???.

2

Estimating Population Density Using Quadrats: Record this information on the data sheet in the table for Activity ???.

2.5

Estimating Population Density Using Quadrats: The square should measure ??? cm x ??? cm.

3

Estimating Population Size Through Mark and Recapture: Answer the questions for Activity ??? on the Questions sheets.

20

Estimating Population Size Through Mark and Recapture: Determine the average percentage of the sample marked and recaptured for all ??? samples

3

Estimating Population Size Through Mark and Recapture: In the table for Activity ??? on your data sheet, record the total number of beads in the sample you captured.

3

Estimating Population Size Through Mark and Recapture: On your data sheet for Activity ???, record the number of colored beads (marked individuals) that are now in the population.

3

Estimating Population Size Through Mark and Recapture: Record the population size on the data sheet for Activity ???.

3

Estimating Population Size Through Mark and Recapture: Record the results on the data sheet in the table for Activity ???.

4

Estimating Population Size Through Mark and Recapture: Repeat steps ???, 5, and 6 until you captured 20 samples


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