Simpsons Diversity Index

Which site has greater relative species abundance

• Site A

• Site B

Tags

NGSS.MS-LS2-4

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.MS-LS2-5

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.MS-LS2-5

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 Simpson's Diversity Index measure?

• Species richness and evenness

• Population growth rate

• Genetic variation

• Habitat size

If a forest has a Simpson's Index value close to 1, what does this indicate about its biodiversity?

• High diversity

• Low diversity

• No diversity

• Equal diversity

Tags

NGSS.MS-LS2-5

Which of the following is a correct formula for calculating Simpson's Diversity Index?

In an ecological study, why might researchers choose to use Simpson's Diversity Index over other indices?

• It accounts for both species richness and evenness

• It is easier to calculate

• It only considers species richness

• It is the oldest index available

Tags

NGSS.HS-LS2-2

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

• Simpson's Index gives more weight to common species

• Simpson's Index gives more weight to rare species

• Simpson's Index only measures species richness

• Simpson's Index is not used in ecology

What is the impact of a dominant species on the Simpson's Diversity Index value?

• Decreases the index value

• Increases the index value

• Has no effect

• Doubles the index value