Before looking at Simpson's Diversity Index in more detail, it is important to understand the basic concepts outlined below. Biodiversity: _____ Habitat: _____ It takes into account the number of species and the relative abundance of each species. Biological diversity can be quantified in many different ways. Worksheets that save paper, ink and time. Worksheets with songs. C) The more species you have, the more diverse the area, right? D = 1 – (6488 / 7832) = 0.17. Of the many species diversity indices used in the literature, the Shannon Index is perhaps most commonly used. Simpson's Diversity Index is a measure of diversity which takes into account the number of species present, as well as the relative abundance of each species. B) Based on the species richness (the number of species present) and species abundance (the number of individuals per species). This is because diversity is usually proportional to the stability of the ecosystem: the greater the diversity, the greater the stability. Visit this page now! Live Worksheets Worksheets that listen. Ecology and Simpsons Diversity Index . Simpson’s diversity index cannot be negative. The diversity index for this particular set is 0.17. Species number and relative abundance affect the diversity of a community. The single spreadsheet gives the calculation for Simpson?s Index (D) and Shannon-Weiner (H?) 2. 1. Simpson’s Diversity Index . This index combines measures of species richness and species evenness. For Location A: = 1 - 608 = 1 - 608 = 1 – 0.337 = 0.663 43 x 42 1806 . Preview and details Files included (1) pdf, 122 KB. The guide comes with a variety of scenarios in geography that could use this statistical test as well as a fully worked example. I'm measuring the shrimp diversity using diversity indexes such as Shannon, Simpson, Pielou and Simpson's dominance. In this worksheet, students will learn about the importance of biodiversity and how the balance of organism interdependence can be disturbed by human activities and environmental changes. Ecologists, biologists who study the species in their environment, are interested in the diversity of species in the habitats they study. - The Gini coefficient measures the inequality among values of a frequency distribution (for example levels of income). One is called the Simpson's Index. Key stage: KS 3. As species richness and evenness increase, so diversity increases. 1.1 What does biodiversity mean to you? Speaking worksheets. Before looking at Simpson's Diversity Index in more detail, it is important to understand the basic concepts. Simpson’s Index of Diversity In ecology, this index is used to quantify the biodiversity of a habitat. Compare the diversity of these two kinds of mixed nuts. Free. For example, communities with a large number of species that are evenly distributed are the most diverse and communities with few species that are dominated by one species are the least diverse. If it is, check your calculations for arithmetic errors. As species richness and evenness increase, so diversity increases. Ökologen, Biologen, die die Arten in ihrer Umgebung untersuchen, interessieren sich für die Artenvielfalt in den untersuchten Lebensräumen. Writing worksheets. Simpsons Variables Worksheet Answers using Beneficial Focuses. Cinema and television worksheets. Any values above 0.5 usually indicate a relatively diverse population. Calculate Simpson's index for the community pictured below: . On some occasions it is called the Shannon-Wiener Index and on other occasions it is called the Shannon-Weaver Index. Simpson's Diversity Index is a measure of diversity. ten species and their abundance. Calculating Simpsons Index of Biodiversity Exercise - A-level Biology February 6, 2017 Tom Whitburn A brief exercise using coral reef photographs and a fish identification chart to calculate a Simpsons Index … Since we would like to present everything required within a genuine and also trustworthy reference, all of us provide very helpful information about different subject areas and also topics. Simpson's Index = 1 - [0 .1225 + 0.16 + 0.0625 ] Simpson's Index = 1 - [0.345] Simpson's Index = 0.655 Problems: Tables to organize the data needed to calculate Simpson's Index are found on the last page of this exercise. Guide-13-Simpsons-Diversity-Index. Advertise here. For more resources visit www.theislandgeographer.co.uk. diversity index values will vary between 0, which would indicate no diversity, and 1, which is very diverse. 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