BIOL 1108L Field Survey Make Up Assignment 2

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University Of Georgia *

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1108L

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Biology

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Dec 6, 2023

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docx

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BIOL 1108L Field Survey Make Up Assignment This assignment takes the place of the group submission Field Survey . S tudents went out to Lake Herrick and Oconee Forest Park to collect baseline abiotic and biotic data from the aquatic and terrestrial areas of the watershed area. Read the background information on eLC for Oconee Forest Park and Lake Sampling to help you respond to the questions below. Submit this assignment to the Lab 9 makeup assignment dropbox within 5 days of your absence . 1 . Read about Lake Herrick, view the maps and any pictures you might be able to see on the website. Describe the land use in Lake Herrick and Oconee Forest Park based on the information you have. How has the land been altered? What human activity takes place there? (3 pts ( a . Lake Herrick is a 15-acre body of water that is located on southern UGA’s campus. Its watershed covers 248 acres, that includes 66.4 acres that drain into the sub-watershed on a nearby pond. The watershed includes all of UGA’s IM fields and Oconee Forest Park, as well as part of a neighborhood. The lake was initially constructed in 1982 for recreation, research, and teaching. You cannot swim or boat in it, as it was banned in 2002. It still is used for teaching in various science courses at UGA. It has been reopened recently because of a project including restoration and revitalization. The first two phases of this project included removing sediment and invasive plants from the upper bond, and installing storm water control measures. Also, the shoreline on the lake has been improved with the addition of a terraced lawn, overlook dock and boat and kayak launch. Now, you can use non-motorized boats, as well as fish (with license .( 2 . Students collected abiotic measurements in a disturbed area (such as a trail) vs an undisturbed area (such as the area in the forest away from the trail). Soil pH, soil temperature, air temperature, and light intensity were measured. Describe what differences between the two areas you would expect. For example, would you expect soil pH to be higher in a trail or the forest? Or perhaps the same? (3 pts ( a . For soil pH, I think it would be higher in the forest rather than the trail, mainly because the forest is undisturbed . b . For everything else, I feel like it would be relatively the same . 3 . Students also collected biotic measurements between the disturbed area vs the undisturbed area, specifically abundance and biodiversity measurements. See the data table below. What trends or differences do you notice between the undisturbed vs disturbed area? (3 pts (
BIOL 1108L Field Survey Make Up Assignment Biotic Measurement Undisturbed Disturbed Abundance Diversity Abundance Diversity Trees 15 5 8 3 Other plants 30 9 20 6 Invertebrates 55 5 24 3 Fungi (if present ( 2 1 0 0 Other organisms : 10 2 1 1 The abundance and diversity is quite a bit lower in the disturbed area rather than the undisturbed area, across all of the biotic measurements . 4 . Describe how energy flow and chemical cycling could be altered due to the changes in the disturbed area. (3 pts ( a . Because there is less abundance and diversity in the disturbed areas, there would be less energy and chemicals to flow through the cycling system than in the undisturbed areas . 4 . For the lake, students collected abiotic measurements of the water: water pH, nitrate, phosphate, dissolved oxygen, temperature, turbidity. Read through the background information on Lake Sampling. Explain how these measurements are useful in determining the overall quality of the water. (3 pts ( a . Possessing these measurements is valuable for comprehending the general water quality, as any factors diminishing water quality would impact the abiotic measurements. Indicators such as decreased dissolved oxygen (DO), variations in pH, elevated or diminished levels of phosphates, nitrates, and other chemicals all serve as indications of inferior water quality .
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