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Submitted by amdicicco on Thu, 11/15/2018 - 16:12

Ponds are freshwater bodies of water found all over the world. These ponds host all types of organisms ranging from unicellular organisms to multicellular organisms such as fish and frogs. In ponds, groups of living things depend on the water environment and each other for their own supplements and survival (Rejesh, 2017). If a pond has more "evenness" when it comes to diversity, it's system is going to be stronger, and better equipped for survival. By evaluating pond water samples from different ponds on The UMass Campus, we should see which pond is most diverse and therefore better equipped for survival. To test what pond has a higher Shannon Diversity Index, we gathered pond water samples from two locations. We counted the organisms, identified and classified the species, charted the numbers, and then calculated which pond had higher diversity.

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Submitted by amdicicco on Thu, 11/15/2018 - 15:25

Gray and white are made up of the same colors. They both use red, green, and blue. The difference between the two is the intensity that each color is added. For example, white is all three colors at their highest intensity (225), while gray is all 3 colors but only at an intensity of 128 each. This experiment is designed to see if the spider will pick the color that is made up of the highest intensity colors, or pick the background that uses less of the colors.

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Submitted by amdicicco on Thu, 11/15/2018 - 15:24

In nature Misumena vatia spends a lot of time on flowers. These flowers provide a background that is complex. This experiment will allow us to test if the spiders prefer a more complex background that has definitions of shapes, like many places in nature, or a simple background. The complex shapes will be abstract in nature, but will not derive in brightness or color from the paired simple background.

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Submitted by amdicicco on Thu, 11/15/2018 - 15:24

Specific Aim 2. Test whether Misumena vatia prefers a cyan or green background. Cyan is created in the RGB model by putting green and blue to their highest intensities, and not adding any red. Green is created by only using green at its highest strength. This experiment will show whether the use of blue has any effect on the spiders background choice.

 

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Submitted by amdicicco on Thu, 11/08/2018 - 10:49

Pond water organisms are very important in ponds and how they function. They are responsible for things such as nutrient cycling, water quality, disease control and other things like the nutrition of cultured species (Moriaty 2017). Species diversity in microorganisms and things such as protozoans and algae can vary between bodies of water even if they are in close proximity. We wanted to see which pond on the UMass Campus would have a higher diversity index of organisms. We ran a lab and looked at samples from both the Sylvan Pond and Campus Pond and used the Shannon Diversity index formula to figure out which had a higher and more even diversityThe Sylvan pond has murky water and is in a more wooded area than the Campus Pond. In addition, the Campus pond is maintained while the Sylvan pond is not. Before the experiment, we hypothesized that the Sylvan pond would be more diverse than the Campus Pond. After the experiment, we concluded that the Campus pond is actually more diverse than the Sylvan pond, but the Sylvan pond has higher richness. Our results tell us that the Campus pond is more robust, and therefore, better equipped for survival.

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Submitted by amdicicco on Thu, 11/08/2018 - 10:38

Ponds are freshwater bodies of water found all over the world. These ponds host all types of organisms ranging from unicellular organisms all the way to multicellular organisms such as fish and frogs. In ponds, groups of living things depend on the water environment and each other for their own supplements and survival (Rejesh, 2017). If a pond has more "evenness" when it comes to diversity, it's system is going to be stronger, and better equipped for survival. By evaluating pond water samples from The UMass Campus and the Sylvan Pond, we should see which pond is more diverse and therefore better equipped for survival. To test what pond has a higher Shannon Diversity Index, we gathered pond water samples from two locations. We counted the organisms, identified and classified the species, charted the numbers, and then calculated which pond had higher diversity.

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Submitted by amdicicco on Thu, 11/08/2018 - 10:36

Pond water organisms are very important in ponds and how they function. They are responsible for things such as nutrient cycling, water quality, disease control and other things like the nutrition of cultured species (Moriaty 2017). Species diversity in microorganisms and things such as protozoans and algae can vary between bodies of water even if they are in close proximity. We wanted to see which pond on the UMass Campus would have a higher diversity index of organisms. We ran a lab and looked at samples from both the Sylvan pond and Campus pond and used the Shannon Diversity index formula to figure it which had a higher and more even diversityThe Sylvan pond has murky water and is in a more wooded area than the Campus Pond. In addition, the Campus pond is maintained while the Sylvan pond is not. Before the experiment, we hypothesized that the Sylvan pond would be more diverse than the Campus Pond. After the experiment, we concluded that the Campus pond is actually more diverse than the Sylvan pond, but the Sylvan pond has higher richness. This result is important because it tells us that the Campus pond is more robust, and therefore, better equipped for survival

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Submitted by amdicicco on Wed, 11/07/2018 - 21:46

In order to control the spider’s decision of choosing a side based on substrate color is it important to keep all other factors consistent. If in the experiment the spider forms a web it will be taken out in order to avoid the spider from choosing the same side due to having its web. Both sides of the environment should also be exactly the same except for background color. The temperature needs to be kept consistent inside of the tank. To do this, the spiders need to be kept away from windows and housed somewhere there is no incoming cold air. It has been shown that spiders are less active in colder temperatures, so keeping them at room temperature (70°F) is important. Light entering from outside of the tank should also be the same on both sides. To keep this consistent do not place in sunlight, or somewhere that there are shadows. Overhead lights should be used because they will keep the light even on both sides. The lights will follow an artificial light cycle in a lab setting with day and night.

 

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Submitted by amdicicco on Wed, 11/07/2018 - 21:44

Specific Aim 5. Test whether the Misumena vatia prefers a gray or white background. Gray and white are made up of the same colors. They both use red, green, and blue. The difference between the two is the intensity that each color is added. For example, white is all three colors at their highest intensity (225), while gray is all 3 colors but only at an intensity of 128 each. This experiment is designed to see if the spider will pick the color that is made up of the highest intensity colors, or pick the background that uses less of the colors

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Submitted by amdicicco on Fri, 11/02/2018 - 00:13

Both sides of the environment should also be exactly the same except for background color. The temperature needs to be kept consistent inside of the tank. To do this, the spiders need to be kept away from windows and housed somewhere there is no incoming cold air. It has been shown that spiders are less active in colder temperatures, so keeping them at room temperature (70°F) is important. Light entering from outside of the tank should also be the same on both sides. To keep this consistent do not place in sunlight, or somewhere that there are shadows. Overhead lights should be used because they will keep the light even on both sides. The lights should remain on 24 hours a day, so the spiders are always able to see the color of the background they are on.

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