Quiz about Simpson Index

Question 1

Site 1 has a Simpon's Diversity Index of 0.81 and site 2 has 0.43. Choose the correct statement.

Accepted Answer

Site 1 is more biodiverse than site 2

Answer

Site 2 is more biodiverse than site 1

Answer

You cannot compare the biodiversity of two different sites

Answer

These numbers are qualitative and therefore more data is required to compare both sites

Question 2

A value closer to _____ denotes good biodiversity (from the Simpson's Diversity Index)

Accepted Answer

1

Answer

100

Answer

10

Answer

0

Question 3

Interpret the following data to calculate biodiversity: In a survey, 40 species were found in Area X and 30 species in Area Y. Area X had a Simpson's Index of 0.90, and Area Y had an index of 0.85. Which area has higher biodiversity?

Accepted Answer

Area X

Answer

Area Y

Answer

Both are equal

Answer

Cannot be determined from the data

Question 4

Which site has greater relative species abundance

Accepted Answer

Site A

Answer

Site B

Question 5

Which of the following best describes the Simpson's Diversity Index?

Accepted Answer

A measure of both species richness and evenness

Answer

A measure of species richness in a community

Answer

A measure of species evenness in a community

Answer

A measure of genetic diversity within a species

Question 6

If a community has a Simpson's Diversity Index of 0.95, what does this indicate?

Accepted Answer

The community has high biodiversity

Answer

The community has low biodiversity

Answer

The community has moderate biodiversity

Answer

The community has no biodiversity

Question 7

Which formula is used to calculate the Simpson's Diversity Index?

Accepted Answer

$$D = 1 - \frac{n(n-1)}{N(N-1)}$$

Answer

$$D = \frac{n(n-1)}{N(N-1)}$$

Answer

$$D = \frac{N(N-1)}{n(n-1)}$$

Answer

$$D = 1 + \frac{n(n-1)}{N(N-1)}$$

Question 8

In a study, Site A has a Simpson's Index of 0.67 and Site B has 0.89. Which site is more biodiverse?

Accepted Answer

Site B

Answer

Site A

Answer

Both sites have equal biodiversity

Answer

Cannot be determined

Question 9

What does a Simpson's Diversity Index value of 0 indicate?

Accepted Answer

No diversity

Answer

Maximum diversity

Answer

Moderate diversity

Answer

Infinite diversity

Question 10

How does the Simpson's Diversity Index account for species evenness?

Accepted Answer

By considering the relative abundance of each species

Answer

By considering the total number of species

Answer

By considering the genetic variation within species

Answer

By considering the habitat size

Question 11

Which of the following scenarios would likely result in a higher Simpson's Diversity Index?

Accepted Answer

A forest with many species and equal abundance

Answer

A forest with many species but one dominant species

Answer

A forest with few species but equal abundance

Answer

A forest with few species and one dominant species

Question 12

If a habitat has a Simpson's Diversity Index of 0.2, what can be inferred about its biodiversity?

Accepted Answer

It has low biodiversity

Answer

It has high biodiversity

Answer

It has moderate biodiversity

Answer

It has no biodiversity

Question 13

Which of the following is a limitation of the Simpson's Diversity Index?

Accepted Answer

It is sensitive to sample size

Answer

It does not account for species evenness

Answer

It cannot be used for large ecosystems

Answer

It does not consider genetic diversity

Question 14

In an experiment, a researcher finds a Simpson's Index of 0.75 for a coral reef. What does this suggest about the reef's biodiversity?

Accepted Answer

The reef has high biodiversity

Answer

The reef has low biodiversity

Answer

The reef has moderate biodiversity

Answer

The reef has no biodiversity

Question 15

What is the primary purpose of using the Simpson's Diversity Index in ecological studies?

Accepted Answer

To measure species diversity

Answer

To measure genetic diversity

Answer

To measure ecosystem productivity

Answer

To measure population growth

Question 16

How does the Simpson's Diversity Index differ from the Shannon Index?

Accepted Answer

It is less sensitive to rare species

Answer

It focuses more on species richness

Answer

It focuses more on species evenness

Answer

It is more sensitive to rare species

Question 17

Which of the following would decrease the Simpson's Diversity Index in a given area?

Accepted Answer

A decrease in the evenness of species distribution

Answer

An increase in the number of species

Answer

An increase in the evenness of species distribution

Answer

A decrease in the number of species

Question 18

A Simpson's Diversity Index of 1 indicates what about a community?

Accepted Answer

The community is highly diverse

Answer

The community is not diverse at all

Answer

The community has moderate diversity

Answer

The community has infinite diversity

Question 19

In a biodiversity study, which factor is NOT considered by the Simpson's Diversity Index?

Accepted Answer

Genetic diversity

Answer

Species richness

Answer

Species evenness

Answer

Species abundance

Question 20

What type of data is required to calculate the Simpson's Diversity Index?

Accepted Answer

Number of individuals per species

Answer

Total number of species only

Answer

Genetic data of species

Answer

Habitat size

Question 21

Which of the following best explains why the Simpson's Diversity Index is useful in conservation biology?

Accepted Answer

It helps prioritize areas with high species diversity

Answer

It helps identify areas with high genetic diversity

Answer

It helps measure the economic value of ecosystems

Answer

It helps track the population growth of endangered species

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