Bird Beak Lab Conclusion

Bird Beak Lab Conclusion

The feeding rounds of part two yielded much less offspring but most still survived. The spoon didn’t have enough time to collect five pieces of food so it died out, but the tweezer, binder clip, and scissor were able to collect at least five in ten seconds and survive. There were 13 total chicks in the first wave but in the second, with the modification, there was only seven.

My hypothesis was not supported because the spoon had the least chicks in the first part which doesn’t agree with my hypothesis about the spoon being the most potent beak. The second part disagreed with my hypothesis as well because the spoon did not survive.  

If this situation was to continue for a few more decades I can see a decrease in all species except the tweezers because the tweezers were by far the most effective beak for food. The spoon will be wiped out because it cannot pick up enough food in time to survive each wave.

CER

In this lab we asked the question: “If natural selection occurs in a population, how do changes in selective pressures affect the evolution of that species.” We found that the tweezers were the best beak because it was able to collect the most amount of food and create the most amount of offspring. This data does not support our claim because we thought the spoon was going to be the most effective way of collecting food and producing offspring.

PE

Our data contradicts our expected results because instead of the spoon being the best way of collecting food the tweezers were. There could have been errors because we might have not evenly distributed the food around the table. Another problem may be distance away from the food. Some beaks may have had a lesser distance to cover to collect the food, costing precious time. A way we could have gotten past these faults is by taking more time in distributing the food and also being more careful in being the same distance from the feeding grounds.

PA

This lab was done to demonstrate how a certain trait that improves survivability increases in popularity in a population but a weaker trait that isn’t as potent will show up less often. From this lab I learned more about natural selection and how it is able to select the best traits in a population. Based on my experience in this lab, I can understand why certain birds have certain beaks in a specific area, but in another area with different types of food, there are also different types of beaks.