DYO #2 Fruit Fly Population Investigation

         Problem: How does the ration of females to males effect the population of fruit flies in controlled enviroment for 3 weeks.
          Hypothesis: If I was to put 4 females and 2 males ( a ration of 2:1 ) in a vial then I expect to see 646 adults at the end of 3 weeks because each female will lay 20 eggs a day so 80 eggs will be layed in one day. By day 14 those 80 eggs will become adults then everyday after day 14 til day 21 80 adults will be born. After day 21 we would of had 646 adults because we have to add the 6 from the start.
        Background Research: Fruit flies are insects that reproduce fast because every 14 days a egg goes to an adult. The fruit fly has 3 stages then it becomes a full adult. It goes from a egg to larva in 8 days then in 6 more days it goes to a pupa. After being a Pupa for 6 days the fruit fly becomes a adult. The Female fruit fly can lay upto 20 eggs a day. U could tell the difference from a male and a female by looking at the back of them the male have dark backs and the female back is lighter. The average fruit fly can live 6-8 weeks.
Procedure:
Step 1: We are putting 2 males and 4 females ( a ration of 2:1 ) in 3 vials with food.

Step 2: Put vials in a bin in room temperture for 3 weeks.

Step 3: Make observations of eggs , larva and pupa and see what has changed in the habitat.

Step 4: On Day 21 we are going to put the flies to sleep and we are going to count the new number of Fruit flies.
       Analysis: I looked at 3 vials that each had a ratio of 2 females to 1 male. Each vial had a different amount of fruit flies. Vial Kaila had 210 flies , SJRS had 114 and OAJNQ had 268. If I was to put 4 females and 2 males a ( ration of 2:1 ) fruit flies in a jar then I expect to see 646 adults at the end of 3 weeks. Each female will lay 20 eggs a day so 80 eggs will be layed each day. By day 14 those 80 eggs will become adults. So after day 21 I will be seeing 646 eggs because I have to add the 6 from the start. My data did not support my hypothesis because in my hypothesis I was suppose to have 646 adults at the end of 3 weeks. In none of my vials I had a number close to 646 the highest I got was 268. My data does not support my hypothesis because each female can lay upto 20 eggs a day but that doesn't mean its going to lay 20 a day it may lay less than 20 a day.
       Conclusion: In my experiment I tried to find out how many adult fruit flies will I have if I put a ratio of 2:1 in a vial and leave them there for 3 weeks. I set up 3 vials with 4 females and 2 males and as the days past they reproduced. In my experiment I put 4 females in 3 vials to see if I could match my hypothesis and get 646 adults. I was nowhere near my hypothesis one vial had 210 adults , another 114 and my last one 268. My data did not support my hypothesis because my hypothesis was to get 646 adults and I was no where close. Some errors we had was the food because we lost a few flies that were burried in the food. Another error was the topper because some flies got stuck there and died. If I did this experiment again I would put the vials in a different temperture and give it more light to see how that effects it. I'd like to investigate what would happen if they were in a bigger space instead of the small vial.

                           This is a graph that represents the data of the outcome of my experiment.