Frequency = # of quadrats in a species occurs / number of quadrats examined x 100 (example: 5 out of 8 qudrats contained Golden Pothos = 62.5%. Must calculate a frequency for each species identified even if your quadrat did not have that species). 5. Simpson’s Diversity Index (D) (N = total # of organisms of all species found; n = number of individuals of a particular species. Must use entire class data to get this information). Lab Analysis Questions 1. Did all quadrats contain at least one species of plant? Was there any quadrat that was a devoid of life? 2. Based on the density of each species, which plant was the most dominant? 3. Based on the frequency of each species, which plant occurs most frequently? Is this the same species that was most dominant? Why or why not? 4. According to the frequency of each species, are the plants in the community uniformly distributed, randomly distributed or clumped in groups? 5. What is the relationship between density and frequency? Can a species of plant have a high relative density but a lower relative frequency or vice versa? 6. What is the Species Richness of your quadrat? How about the entire class? Was there a particular quadrat that had a very high or low species richness? What could account for this? Using the Simpon’s Index, calculate the biodiversity of just your groups’ quadrat. SHOW YOUR WORK! 8. You calculated Calculate the biodiversity of North Meck spooky woods. What does this calculation tell us about the diversity and stability of this area? Explain!
Frequency = # of quadrats in a species occurs / number of quadrats examined x 100 (example: 5 out of 8 qudrats contained Golden Pothos = 62.5%. Must calculate a frequency for each species identified even if your quadrat did not have that species). 5. Simpson’s Diversity Index (D) (N = total # of organisms of all species found; n = number of individuals of a particular species. Must use entire class data to get this information). Lab Analysis Questions 1. Did all quadrats contain at least one species of plant? Was there any quadrat that was a devoid of life? 2. Based on the density of each species, which plant was the most dominant? 3. Based on the frequency of each species, which plant occurs most frequently? Is this the same species that was most dominant? Why or why not? 4. According to the frequency of each species, are the plants in the community uniformly distributed, randomly distributed or clumped in groups? 5. What is the relationship between density and frequency? Can a species of plant have a high relative density but a lower relative frequency or vice versa? 6. What is the Species Richness of your quadrat? How about the entire class? Was there a particular quadrat that had a very high or low species richness? What could account for this? Using the Simpon’s Index, calculate the biodiversity of just your groups’ quadrat. SHOW YOUR WORK! 8. You calculated Calculate the biodiversity of North Meck spooky woods. What does this calculation tell us about the diversity and stability of this area? Explain!
diversity_quadrat_field_lab.docx