BIOL 1108L Field Survey Make Up Assignment 2

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 .