Simpson Diversity Index

A Simpson's Diversity Index of 1 is ​ ​ (a)   ​

• low

• high

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NGSS.MS-LS2-5

Which site has greater relative species abundance

• Site A

• Site B

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NGSS.HS-LS2-2

NGSS.HS-LS2-6

Whilst planning a beaver reintroduction program, Mira and Emily were discussing how to measure the diversity of species in a local forest. What does Simpson's Index measure?

• Species richness and evenness

• Population growth rate

• Genetic variation

• Habitat size

Answer explanation

Simpson's Index measures biodiversity by assessing both species richness (the number of different species) and evenness (how evenly individuals are distributed among those species), making it the correct choice.

Tags

NGSS.HS-LS2-2

Rosie and Daniel are studying the biodiversity of two different forests for The Woodland Trust. In one forest, they calculate a higher value of Simpson's Index. What does this indicate about the forest's biodiversity?

• Less diversity

• More diversity

• No change in diversity

• Decrease in population

Answer explanation

A higher value of Simpson's Index indicates more diversity within a community. It reflects a greater variety of species and a more balanced distribution of individuals among those species.

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

What is the primary use of the Simpsons Index?

• To measure population density

• To calculate diversity in an area

• To monitor population growth

• To assess environmental impact

Answer explanation

The Simpsons Index is primarily used to calculate diversity in an area by considering both the number of species and their relative abundance, making it a key tool in ecology.

Tags

NGSS.HS-LS2-2

What does a Simpson's Diversity Index value close to 0 indicate about an ecosystem?

• High diversity

• Low diversity

• No diversity

• Maximum diversity

Tags

NGSS.HS-LS2-2

Which of the following components are considered in calculating the Simpson's Diversity Index?

• Species richness and evenness

• Population density

• Genetic variation

• Habitat size

Tags

NGSS.HS-LS2-2

If a forest has a Simpson's Diversity Index of 0.8, what can be inferred about its biodiversity?

• It has low biodiversity

• It has high biodiversity

• It has no biodiversity

• It has decreasing biodiversity

Tags

NGSS.HS-LS2-2

In an experiment, a biologist calculates the Simpson's Diversity Index for two different lakes. Lake A has an index of 0.3, and Lake B has an index of 0.7. Which lake has greater species diversity?

• Lake A

• Lake B

• Both have equal diversity

• Cannot be determined

Tags

NGSS.HS-LS2-2

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

• By considering the relative abundance of each species

• By counting the total number of species

• By measuring genetic variation

• By assessing habitat size

Tags

NGSS.HS-LS2-2