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# Precipitation and its Effect of the Evolution of Finches in Relation to Beak Size Essay Example

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## Precipitation and its Effect of the Evolution of Finches in Relation to Beak Size

Precipitation and its Effect of the Evolution of Finches in Relation to Beak Size. In order to use the online simulation software in order to collect the data, due to the fact that this observational data would be impossible to be collected over the thousands of years.The first step of being able to run the experiment was to log onto the site in order to carry out the experiment at http://www. Next, depending on the experiment, the experimenter has the option to set the variables that they are interested in looking at. For the case of our hypothesis, we are looking at beak size in relation to precipitation. The independent variable is the initial size of the beaks. The experiment calls for modifying the precipitation on the islands in order to see if this has an effect on beak size.

On one island, move the precipitation to the extreme of there is no precipitation and then on the other island, move the precipitation to the maximum amount of precipitation the island can have. Set the amount of time to look at over the course of three hundred years and run the experiment. Then look at and analyze the data to see if the data matches the proposed hypothesis.As can be seen from the graph, we have an interaction effect at the start and then both populations diverge from each other as time progresses. On Darwin Island, where the precipitation was observed to be 100.0 cm, there was an increase in beak size as time increased. On Wallace Island, where the precipitation was observed to be 0.0 cm, there was a decrease in beak size as time increased. Based on this result, we can conclude that over the 300-year period, the amount of precipitation on the island played a role in the physiological evolution of the finches on their respective islands. Because of this, our non-directional hypothesis was correct in that there was an observable change in the beak size when compared to the amount of precipitation. Just looking at the amount of precipitation on the island is not enough to justify the change in beak size. Because it is shown that the amount of precipitation affects the flora and beak size, other factors such as the amount of competition of other finches on the island as well as the size of the island could have the same effect on the size on the beak on the finches.Based on the data collected from the experiment, it was shown that the data supported our hypothesis that the amount of precipitation on the island has a direct effect on the size of the beaks of the finches living on the island. This shows that at least one. Precipitation and its Effect of the Evolution of Finches in Relation to Beak Size.

References

Darwin, C. (2010). Natural selection. London, UK: Biblios Books.
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