Shannon Biodiversity Index to Compare Biodiversity

Question 1

Shannon Biodiversity Index

Answer 1

A mathematical formula that is used to measure how diverse an ecosystem is. It considers both the number of species (richness) and how evenly individuals are spread across those species (evenness)

Question 2

Shannon Biodiversity Index Equation

Answer 2

H = - Σ (pi * ln(pi))

Question 3

H

Answer 3

Represents the Shannon Biodiversity Index number; higher values indicate greater biodiversity.

Question 4

E

Answer 4

Represents the evenness of species in a population; higher E values indicate a more even population.

Question 5

Pi (π)

Answer 5

Represents the proportion of a certain species in a population, calculated as the number of that species divided by the total population.

Question 6

S

Answer 6

Represents the number of species in a population.

Question 7

Steps to calculate H

Answer 7

1. Calculate Pi for each species, 2. Calculate natural log (ln) of Pi, 3. Multiply each Pi by its ln, 4. Sum these values, 5. Multiply by -1 to get H.

Question 8

Natural logarithm (ln)

Answer 8

Mathematical function used in the Shannon Biodiversity Index calculations.

Question 9

Population biodiversity

Answer 9

The variety and variability of species within a given community or population.

Question 10

Species richness

Answer 10

The number of different species present in a community.

Question 11

Evenness

Answer 11

How evenly the individuals are distributed among the different species in a community.

Question 12

A mathematical formula that is used to measure how diverse an ecosystem is. It considers both the number of species (richness) and how evenly individuals are spread across those species (evenness)

Answer 12

Shannon Biodiversity Index

Question 13

H = - Σ (pi * ln(pi))

Answer 13

Shannon Biodiversity Index Equation

Question 14

Represents the Shannon Biodiversity Index number; higher values indicate greater biodiversity.

Answer 14

H

Question 15

Represents the evenness of species in a population; higher E values indicate a more even population.

Answer 15

E

Question 16

Represents the proportion of a certain species in a population, calculated as the number of that species divided by the total population.

Answer 16

Pi (π)

Question 17

Represents the number of species in a population.

Answer 17

S

Question 18

1. Calculate Pi for each species, 2. Calculate natural log (ln) of Pi, 3. Multiply each Pi by its ln, 4. Sum these values, 5. Multiply by -1 to get H.

Answer 18

Steps to calculate H

Question 19

Mathematical function used in the Shannon Biodiversity Index calculations.

Answer 19

Natural logarithm (ln)

Question 20

The variety and variability of species within a given community or population.

Answer 20

Population biodiversity

Question 21

The number of different species present in a community.

Answer 21

Species richness

Question 22

How evenly the individuals are distributed among the different species in a community.

Answer 22

Evenness