Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 44.1, Problem 3TYK
Summary Introduction
Introduction:
Shannon Diversity Index (Hs) is used to measure the species diversity of a community. It is calculated as:
Hs= -Spi 1npi
where,
Σ= Summation,
pi=The proportion of the individuals belonging to a particular species in a community, and
1n =The natural logarithm.
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Students have asked these similar questions
Which of the following is true about a community's species diversity?
If a community has species richness, it automatically means it also has species diversity.
A community can only have either species richness or species diversity, but not both
A community can have either species richness or species diversity, or both.
None of the above
Which community would be expected to have the highest species richness?
Group of answer choices
A community that inhabits a small geographic area near the poles.
A community that inhabits a small geographic area near the equator.
A community that inhabits a large geographic area area near the poles.
A community that inhabits a large geographic area near the equator.
Now think about the diversity index you calculated in the diversity and succession labs: a value calculated of 10 in Habitat A and 5 in Habitat B would indicate:
Habitat A likely has higher species richness and lower species evenness than Habitat B
Habitat A likely has lower species richness and lower species evenness than Habitat B
Habitat A likely has higher species richness and higher species evenness than Habitat B
Habitat A likely has higher species richness and the same species evenness as Habitat B
Chapter 44 Solutions
Principles of Biology
Ch. 44.1 - Prob. 1CCCh. 44.1 - Prob. 1TYKCh. 44.1 - Lake Baikal in Siberia is an ancient, unglaciated...Ch. 44.1 - Prob. 3TYKCh. 44.2 - Prob. 1TYKCh. 44.2 - Prob. 2TYKCh. 44.3 - Why might ecologists think of walking thecoastline...Ch. 44.3 - Prob. 2CCCh. 44.3 - Which of the following are examples of secondary...Ch. 44.3 - In New England salt marshes, Spartina grass...
Ch. 44.3 - Prob. 3TYKCh. 44.4 - Prob. 1CCCh. 44.4 - Prob. 1BCCh. 44.4 - Prob. 2CCCh. 44.4 - Which is part of the original MacArthur-Wilson...Ch. 44.4 - Prob. 2TYKCh. 44.5 - In these two food chains, plants and...Ch. 44.5 - Prob. 1CCCh. 44.5 - Prob. 1TYKCh. 44.5 - Detritivores that feed on the dung of herbivores...Ch. 44.5 - Prob. 3TYKCh. 44.6 - Net primary production is the energy that passes...Ch. 44.6 - Prob. 2TYKCh. 44.6 - Most gross primary production is used in (by)...Ch. 44 - Prob. 1TYCh. 44 - Prob. 2TYCh. 44 - Prob. 3TYCh. 44 - Prob. 4TYCh. 44 - On which types of islands would you expect species...Ch. 44 - Prob. 6TYCh. 44 - Autotrophic organisms are primary consumers....Ch. 44 - Prob. 8TYCh. 44 - Prob. 9TYCh. 44 - The most highly productive terrestrial ecosystems...Ch. 44 - Prob. 1CCQCh. 44 - Prob. 2CCQCh. 44 - Prob. 3CCQCh. 44 - List some possible ecological disturbances, their...Ch. 44 - Prob. 2CBQ
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- Ecology and Biology: Shannon Diversity Index: Definition & Example The Shannon Diversity Index (sometimes called the Shannon-Wiener Index) is a way to measure the diversity of species in a community. Denoted as H, this index is calculated as: H = -Σpi * ln(pi) where: Σ: A Greek symbol that means “sum” ln: Natural log pi: The proportion of the entire community made up of species i The higher the value of H, the higher the diversity of species in a particular community. The lower the value of H, the lower the diversity. A value of H = 0 indicates a community that only has one species. The Shannon Equitability Index is a way to measure the evenness of species in a community. The term “evenness” simply refers to how similar the abundances of different species are in the community. Denoted as EH, this index is calculated as: EH = H / ln(S) where: H: The Shannon Diversity Index S: The total number of unique species What is the Shannon diversity index value for this community? What…arrow_forwardWhich one of the following statements is FALSE? Beta diversity is low when two ecosystems share the similar species and respective abundance. An intelligent meander records date, time, location and a list of species. Beta diversity or differentiation diversity compares alpha diversity among several communities. Species richness is the total species abundance in an ecosystem. Inventory diversity can be defined by alpha diversity, which is the number of species in a local forest stand.arrow_forwardCreate four different trading cards. Include all of the provided information outlined below. For each card: One Endangered Species, One Threatened Species, One Extinct Species Species name Status Distribution Description of actions leading to decline Recovery planarrow_forward
- If you wanted to protect 10 species how large a habitat would you need? In other words, how large a park (or protected area) do I need? Based on the picturearrow_forwardSpecies richness refers to Group of answer choices a. number of species in a community b. how even in abundance the species in a community are c. extinction rate of species d. number of trophic interactions in a food web e. number of species plus evenness of numbers of individualsarrow_forwardAssume a forest with 2 species of animals (A and B) and are competing for the same resources. Suppose species A dies at 1% per year and species B at 11.57% per year. A total of 6500 animals can survive in the forest. Species B has a higher birth rate and 65% of all new survival replacements go to them and the rest go to species A. What would the steady state number of species A animals be? please report a whole number.arrow_forward
- In a given habitat we have 20 plant species and 20 animal species should we call this as 'diversity'or'biodiversity' ?arrow_forwardWhich of the following is the definition for species richness? A. The number of species in a community. B. The relative abundance and species richness in a community. C. The number of dominant species in a community. D. The proportion of a given species in the community.arrow_forwardHow is the Biodiversity Index calculated? Total number of individuals x number of species Total number of individuals - number of species Number of species divided by total number of individuals Number of species + total number of individualsarrow_forward
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