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Why Do Boxelder Maple Trees Affect Recruitment Success?

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Introduction
Boxelder Maple trees depend on the dispersal of their samaras to reproduce. The samaras are the seeds of the tree that are shaped in such a way that the wing of the seed causing it to spin. The seed does not fall directly but instead twirls like a helicopter making it stay in the air longer. With the wind the seed can then me dispersed away from the parent tree to take rout and grow on its own. Not all seeds float away from the parent seed and take rout. Some end up falling to close to the parent tree not allowing them to survive due to not getting nutrients and sunlight. “Recent field studies have made progress in elucidating the mechanisms behind these patterns and the implications of these patterns for recruitment success” …show more content…

I then predicted that if I took the 6 largest and 6 smallest samaras from a group of 20 randomly selected samaras, and dropped them from the same height each time, then the larger seeds would take a significantly longer time in the air compared to the smaller seeds. After analyzing my results, I found my hypothesis to be rejected. The length on the bigger seeds did not show any significant difference from the smaller seeds. The t-test proved my hypothesis to be incorrect due to the t value being less than what it should have been. My null hypothesis of length having nothing to do with the drop time was proven correct. “Despite considerable interspecific variation in samara dimensions, terminal velocities are quite similar for all species and exhibit good fit to a general model relating flight characteristics to samara dimensions for maple samaras” (Guries and Nordhiem). This supports that the seeds of different sizes have very little difference. With the data that I collected and this resource I can conclude that the size of the Box Elder Maple samara does not affect the amount of time the seed remain in the air. Dispersal of the seeds do not fully depend on the length of the seed from the experiment conducted. It could count on other outside forces as in wind and the height it is falling

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