DYO #2: Fruit Fly Population Investigation

1. Problem (Question):  how many flies would be in the vial after 3 weeks
2. Hypothesis:at the end of of 3 weeks there would be 646 adult flies in my vial because i put 2 males and 4 females in my vial because everyday a adult female fly lays 2O eggs everyday and then it takes the flies 16 days to become adults while its going thru every stage.
3. Background Research:Fruit flies has 4 different stages in its life and while it was in the vial i got to see all the stages like egg, larva, pupa, adult. it was very cool to see how much they change in only 16 days every week we would get to look at the vials and see the changes. like for example the first week we had the same flies in there but we was some eggs and a few flies died but we still had some growth in there. the first stage looks like a rice w a small black dot the second stage a little nasty is a small white warm w a black dot. 

      4.   Procedure:

• Step 1: I set up three different vials with a food source and 2 males and 4 females in each one. This made a ratio of 2 to 1 (2F:1M). 
• Step 2: Place vials together in bin at room temperature.
• Step 3: Check vials each week and record observations (i.e., number of adults, number of pupae, existence of eggs and larva, any strange or unusual activity)  
• Step 4: At the end of 3 weeks (on day 21), use FlyNap to put flies to sleep. Empty out sleeping flies on an index card, record the number of adults on your data table and put the flies back in the vials. 

        5.  Data Table and Graph (click here for photos of your graphs -

1. Analysis: each week i would have to see 3 different vials to see the differences in each vial. the vials i had to check were vials 18, Sjrs, &2O vial 18 had 7O adults, Sjrs had 114 and 2O had 67 adult flies after 3 weeks. i expected to see 646 in vial 18 but because it had some frailer flies the first week i believe we was not so successful in the the entire experiment.  so my data did not support my hypothesis.
2. Conclusion: Overall i wanted to find out how many adult fly's would be in the vial after 3 weeks because it was the investigation in my class. if i could improve my experiment i would have put the flies in a more comfortable environment so that maybe my calculation would have matched w my data better.

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