i calculate both indices and i would like to discuss the results. You must enable cookies before you Biodiverse can be other software for your analysis, with advantages for geographic visualitacion of indexs.However, just crunching a buncha numbers doesn't necessarily elucidate your questions, nor do they confidently test all of your hypotheses. Also realise diversity permutation test between comunity, determine too diversity alpha, beta.#12 out of 12978 CRAN packages found in 37 seconds.Centro de Investigaciones y Servicios Ambientales y TecnológicosHammer, Ø., D. A. T Harper y P. D. Ryan. S = species richness (Total number of species), D= Simpson's diversity index, Simpson's diversity ED = evenness, H = Shannon's index of diversity, E = Shannon's evenness index, and d = Berger-Parker dominance index Bacillary i want to check the species diversity and dominate species in my study area.I am doing these analysis first time, so kindly help me to understand and interpret this table.Thanks Hi all, I am a student and my statistics knowledge is minimal. The vegan package for R is pretty easy to use and can calculate a number of different indices by default. I tried reading more about it and have found some sites interchanging 'Bray-Curtis Similarity Index', 'Sorensen Distance' and 'Bray-Curtis Distance' (suggesting that they are the same thing), whereas others have stated that these are different measures. Open water and Developed). I have no idea how you obtained your numbers and therefore I cannot comment on the scientific point of view. A different number of metrics are used in calculating the evenness. Predator/prey computer simulation (Option 2). simply my objective is to see if there are special and temporal differences in phytoplankton diversity among 8 sampling stations. R package could work with Minitab or Arcgis if you decide make most deep science.EstimateS, the vegan package in R or PaST. In this case, that matches the total refuge size entered by the manager (which is good). Here is linkI would suggest a visit to the site of Robert Colwell (GB Pant Institute of Himalayan Environment and DevelopmentThe above link is useful to start with basic diversity indices calculation. I sampled insects over 12 months. For the Smoky Pines Refuge Above, there are 4 habitats.2) Calculate the proportional representation of each habitat (p5) Now to get evenness (E), we just divide D by the total number of habitats present (which is the maximum possible value for D). Our analysis will attempt to separate the two.A number of different metrics are available for calculating evenness (and diversity). This page will take you through the steps of calculating evenness of broad and fine-scale habitat distributions I see this for 1) Forest and Woodlands, 2) Annual Grassland, 3) Perennial Forbes, 4) Annual Forbes, 5) Planted/cultivated grassland, 6) Submersed aquatic vegetation, 7) Developed, and 8) Open Water. Consider landcover in the following two made-up refuges, each of which contain the same four habitat types:Smoky Pines Wildlife Refuge: 500 ha mud flats, 400 ha wetland, 600 ha deciduous forest, 500 ha scrubland.Great Auk Wildlife Refuge: 5 ha mudflats, 5 ha wetland, 1960 ha deciduous forest, 20 ha scrubland.Each of these refuges has a habitat richness of n=4 and each is exactly 2000 ha.

Calculating habitat richness and evenness If you have difficulty in accessing the papers let me know and I will send themAlan Feest You can use SPADE - Species Prediction and Diversity Estimation to estimate biodiversity in communities and iNEXT (iNterpolation and EXTrapolation)I think EstimateS software is very good option. The R function t.test() expects raw data, but if you already have means and se's, it is easy to calculate statistics by hand..

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