Wednesday, June 1, 2011

DYO #2: Fruit Fly Population Investigation

Problem (Question): How does the number of males and females affect the amount of adults being laid in 3 weeks?


Hypothesis : If i were to put 2 females and 1 male fruit file then the amount of adults would grow to about 6200 adults at the end of 3 weeks because 1 female is able to lay 20 eggs a day and they turn into adults in 2 weeks.
Background Research: During my research I have found out many interesting facts such as the females furit file only needs to mate once,because from that one male she is able to produce eggs until she dies. Another fact, I learned is that female fruit files are able to produce up to 20 eggs a day,  and the life cycle of a fruit file to become an full adult is about 2 weeks. Sad part is they only live for around 6 weeks. 


Procedure:
Step1: My group and I were to choose a combination of fruit files, we picked 1 male and 2 female.
                                            
                                                                    The Combination of fruit files that we picked



Step2:  We placed an gas called Fly Nap into the vale with the class fruit files. We allowed the gas to stay in the vale for at least 4 mins to ensure they where sleep so we can collect ours.


Step3:  We opened the vale to identify which were male and female fruit files, then we were able to gather our combination of fruit files and place them to the side.


Step4:  In the new vale we were to add water to an powder food substance to the bottom, along with a little yest to make there food supply.

Step5: We placed the vale hortanzail to add our fruit files that we set a side in step3

Step6: After that we have allowed the fruit files to wake up from the fly nap and for 3 weeks we have observed the numbers of adults that changed.

Step7:  We use the data that we colletced in the 3 weeks period, to compare the changes.