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Understanding Species Richness in Biodiversity

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Understanding Species Richness in Biodiversity

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Questions and Answers

What does the Menhinick's index compare?

Number of species measured to the square root of the number of individuals observed (correct)

Number of individuals observed to the number of species measured squared

Number of species measured to the total number of individuals observed

Number of individuals observed to the square root of the number of species measured

Why is sampling standardization and methodology crucial for calculating species richness?

To decrease the number of individuals collected

To lower the overall species richness value

To increase the bias in the results

To estimate the value more accurately (correct)

What might happen if a researcher only collects individuals from an open area within a meadow?

They may overestimate the species richness

They will only collect common species

They will accurately report the species richness

They may underestimate the species richness (correct)

In taxonomy, what does a specific species belong to within a genus?

Family Signup and view all the answers

What does Margalef's Index indicate about an ecosystem?

The higher the value, the higher the richness Signup and view all the answers

Why might researchers be interested in calculating species richness for a specific taxonomic group?

To obtain a more accurate representation of diversity within that group Signup and view all the answers

What was Mary's objective in comparing species richness before and after the park cleanup?

To see if maintaining the park improves species richness Signup and view all the answers

What effect did the park cleanup project have on Mary's park based on all three methods used for measurement?

The park became richer in species after the cleanup Signup and view all the answers

Why did Mary decide to sample her park before initiating the cleanup project?

To see if maintaining her park would benefit ecosystem health Signup and view all the answers

What can be concluded about sampling based on Mary's results?

Sampling from multiple areas is crucial to avoid underestimating species richness Signup and view all the answers