How big is my population?
1:Counting Big Populations: How do Scientist estimate the size of a large population?
-By the random sample
2:How many dandelions are there on the grid? :100
3:Sealing it Up: What does it mean that we scaled up?
-When you have an estimate fro average
-# of them by (x) scale up that # by total # of squares yard
4:Keeping it Random: Why is it important to randomly select segments to count?
-Tendency to chose best looking. But shot should all be equal to the able to be selected
5: When Size Matters: What is the simplest way to determine the appropriate sample size?
-By graphing a running average
6: Bare Bones Sampling: What is the difference between measuring abundance versus Presence/absence?
-A-Actual # of individuals in a area
-P: its just determining if whether the organism was observed or not
7:Collecting P/A Data: Counting Mass..How do we estimate sample size?
-Randomly select individual points to sample
8:Impervious Surface: How do we estimate impervious surface?: Explain
-Presence/Absence sampling is often used to measure landscape rather than organism
9: Getting Fancy: What are the steps for conducting a simple transcent?
-1.Randomly select a starting point 2.randomly chose a direction 3. Lay out a transcent 4. Determine where along the transcent you will collect your sample data 5.Layout a sampling frame
Summary: Explain what you learned by doing this activity
From this activity I learned about the better ways to count big population without counting every single organism. . By estimating a small amount and then doing some math the estimation will be closer.
-By the random sample
2:How many dandelions are there on the grid? :100
3:Sealing it Up: What does it mean that we scaled up?
-When you have an estimate fro average
-# of them by (x) scale up that # by total # of squares yard
4:Keeping it Random: Why is it important to randomly select segments to count?
-Tendency to chose best looking. But shot should all be equal to the able to be selected
5: When Size Matters: What is the simplest way to determine the appropriate sample size?
-By graphing a running average
6: Bare Bones Sampling: What is the difference between measuring abundance versus Presence/absence?
-A-Actual # of individuals in a area
-P: its just determining if whether the organism was observed or not
7:Collecting P/A Data: Counting Mass..How do we estimate sample size?
-Randomly select individual points to sample
8:Impervious Surface: How do we estimate impervious surface?: Explain
-Presence/Absence sampling is often used to measure landscape rather than organism
9: Getting Fancy: What are the steps for conducting a simple transcent?
-1.Randomly select a starting point 2.randomly chose a direction 3. Lay out a transcent 4. Determine where along the transcent you will collect your sample data 5.Layout a sampling frame
Summary: Explain what you learned by doing this activity
From this activity I learned about the better ways to count big population without counting every single organism. . By estimating a small amount and then doing some math the estimation will be closer.