Labs
Population Pyramids
turlock
The turlock population is stable to declining slowly. I think this is happening because
Parking Lot LAb
1. Identify the parking lot that was the most diverse. Based on your observations during the lab, explain why your
prediction in question #1 of the prelab was supported or not supported.
The Student parking lot was more diverse because the students parking lot ranged from gray to orange colors, on the other hand the staff parking lot a more neutral colors.
2. List the single most abundant species in each set of data, and write a plausible explanation to explain why these are
the most abundant species.
The color black was the most abundant in the student because that shows confidence and students like to be confident.
The gray cars were more abundant because that shows confidence and professionalism.
3. Determine the maximum and minimum values for the Shannon Diversity Index in the parking lot you surveyed.
The student parking lot has maximum values for the Shannon Diversity Index, and the staff parking lot had a minimum Shannon Diversity Index.
4. If you conducted this lab in a shopping mall parking lot, predict whether the Shannon Diversity Index would be high or
low, and how it would compare to the school parking lots.
If this lab was conducted in a mall, there would different types of cars and many different colors, just like the student parking lot.
5. If you conducted this lab at a new car dealership, predict whether the Shannon Diversity Index would be high or low,
and how it would compare to the school parking lots.
If this lab was conducted in a car dealership, it would be much the staff parking lot because there would some colors but most of them would be similar and also the car would just one company, such as, Honda.
prediction in question #1 of the prelab was supported or not supported.
The Student parking lot was more diverse because the students parking lot ranged from gray to orange colors, on the other hand the staff parking lot a more neutral colors.
2. List the single most abundant species in each set of data, and write a plausible explanation to explain why these are
the most abundant species.
The color black was the most abundant in the student because that shows confidence and students like to be confident.
The gray cars were more abundant because that shows confidence and professionalism.
3. Determine the maximum and minimum values for the Shannon Diversity Index in the parking lot you surveyed.
The student parking lot has maximum values for the Shannon Diversity Index, and the staff parking lot had a minimum Shannon Diversity Index.
4. If you conducted this lab in a shopping mall parking lot, predict whether the Shannon Diversity Index would be high or
low, and how it would compare to the school parking lots.
If this lab was conducted in a mall, there would different types of cars and many different colors, just like the student parking lot.
5. If you conducted this lab at a new car dealership, predict whether the Shannon Diversity Index would be high or low,
and how it would compare to the school parking lots.
If this lab was conducted in a car dealership, it would be much the staff parking lot because there would some colors but most of them would be similar and also the car would just one company, such as, Honda.
Wooly Worms Lab
1. What were the degrees of freedom used in this exercise?
The degrees of freedom used are 6.
2.What is the calculated chi-square (χ2) value?
The calculated chi-square was 79.23.
3. Do your results indicate that it was chance alone that caused the unequal numbers of capture wooly worm phenotypes? Explain.
4. Which colors of worms were subjected to a positive selection pressure? Which colors of worms were subjected to a negative selection pressure? Explain.
Colors such as the green and black can blend in with the soil and the grass, giving them an advantage, which is positive selection pressure. The colors such as the red don't have an advantage on the grass and seen easily and can be picked up more often, which is the negative selection pressure.
5. What do these results indicate might happen over time to this wooly worm population?
These results indicate that the worms that can be seen more such as the red Firelash population will decrease because they can be seen more easily and will be eaten much more than the Olive Garden worm.
6. Consider feeding times, feeding habits, ability to see color, vision acuity, and other possible characteristics of predatory birds in nature. How might such characteristics determine selection of certain worm colors?
7. Consider the school grounds upon which you “fed” on your wooly worms. If this particular environment remained unchanged over a very long period of time, how would the populations change? What would the community look like in ten years?
If this environment was untouched and remained the same, the population would die slowly an over a ten year period and the population would just increase more and eventually will have too many worms .
The degrees of freedom used are 6.
2.What is the calculated chi-square (χ2) value?
The calculated chi-square was 79.23.
3. Do your results indicate that it was chance alone that caused the unequal numbers of capture wooly worm phenotypes? Explain.
4. Which colors of worms were subjected to a positive selection pressure? Which colors of worms were subjected to a negative selection pressure? Explain.
Colors such as the green and black can blend in with the soil and the grass, giving them an advantage, which is positive selection pressure. The colors such as the red don't have an advantage on the grass and seen easily and can be picked up more often, which is the negative selection pressure.
5. What do these results indicate might happen over time to this wooly worm population?
These results indicate that the worms that can be seen more such as the red Firelash population will decrease because they can be seen more easily and will be eaten much more than the Olive Garden worm.
6. Consider feeding times, feeding habits, ability to see color, vision acuity, and other possible characteristics of predatory birds in nature. How might such characteristics determine selection of certain worm colors?
7. Consider the school grounds upon which you “fed” on your wooly worms. If this particular environment remained unchanged over a very long period of time, how would the populations change? What would the community look like in ten years?
If this environment was untouched and remained the same, the population would die slowly an over a ten year period and the population would just increase more and eventually will have too many worms .