As a community develops, more species into the community and become established. How will this affect the Shannon index
Added by Michael W.
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The Shannon index (H') is a measure of biodiversity that takes into account both the number of species (richness) and the evenness of their distribution (how individuals are distributed among the species). Show more…
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Sukhada S.
Community A Community B b. What is the species richness in community A (0.5pts) and in community B (0.5pts)? The Shannon Index is a measure of species diversity in a community that combines species richness with species evenness; it is defined as: H = -ÎŁ pi ln (pi) where pi is the proportion of species i in the community, and S is the total number of species in the community. c. Calculate the Shannon Index for community A (show your working; 2pts) and community B (show your working; 2pts). d. Which community is more even and why (1pt)? Imagine a community made up of multiple individuals of one beetle species. e. Is there biodiversity in this community (1pt) and why (1pt)?
Shaiju T.
The species richness of a community is the number of different species found within that community, but to know about species diversity requires taking into consideration the relative numbers of individuals of each species within the community. Species richness can be calculated in several ways, and here we'll use the Shannon diversity index (H_s) to determine the species diversity in some hypothetical communities. This way of calculating species diversity takes into account even small contributions to diversity made by rare species; this makes the index useful for conservation biologists studying the contributions of those species to the community. The table shows data about the richness and numbers of different species in a particular community. Fill in the blanks in the table to calculate the Shannon diversity index (H_s) for the community. Calculate values to two decimal places.
Sri K.
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