Name _____________________________________________  Date ________________  Class period _______

 

                      Bird beak adaptation and competition Lab Data sheet

1. Write a hypothesis and prediction for the following:

   Which bird will be most evolutionary fit for this environment?

           Hypothesis:

    

    

           Prediction:

    

    

    

    

   Which bird will be least evolutionary fit for this environment?

           Hypothesis:

    

    

            Prediction:

    

    

    

2. Complete the in class simulation to collect your data. Use the provide data table.

3. Construct two graphs off the averages, one containing the 3 individual feeding rounds and one for the forth round.

   • Graphs will compare beak types and average number of food types eaten.

4. Discuss and describe any patterns you have found in your data (graphs).

 

 

 

 

5. Describe any selective pressures (physical or biological) that the birds experienced in this simulation. How might they compare to the the real world?

 

 

 

6. Reevaluate your two hypothesis: discuss why it was supported or falsified and any other questions that may come out of this.

 

 

 

 

 

 

 

Type  of Birds	Quantitative activity	Feeding Round 1	Feeding Round 2	Feeding Round 3	Feeding Round  4
		Stick Worms	Rock Beetles	Washer Weevils	All food item at once
					Worms	Beetles	Weevils
Chopstick bills   Total # of  birds  in group   _______	Total eaten by individual
	Total eaten by group
	Average eaten by group
Clothespin bills Total # of  birds in group   _______	Total eaten by individual
	Total eaten by group
	Average eaten by group
Scissor bills   Total # of  birds in group   _______	Total eaten by individual
	Total eaten by group
	Average eaten by group
Spoon bills   Total # of  birds in group   _______	Total eaten by individual
	Total eaten by group
	Average eaten by group
Tweezer bills   Total # of  birds in group   _______	Total eaten by individual
	Total eaten by group
	Average eaten by group