Ecological Models and Data in R. Benjamin M. Bolker

Ecological Models and Data in R


Ecological.Models.and.Data.in.R.pdf
ISBN: 0691125228,9780691125220 | 516 pages | 13 Mb


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Ecological Models and Data in R Benjamin M. Bolker
Publisher: Princeton University Press




Building on the successful Analysing Ecological Data (2007) by Zuur, Ieno and Smith, the authors now provide an expanded introduction to using regression and its extensions in analysing ecological data. A technique that is increasingly gaining currency in ecological studies for the analysis of time series data with nonlinear dynamics, process and observation error, missing data, and latent variables is the BSS model using Gibbs sampling [49]–[52]. Bolker BM: Ecological Models and Data in R. (D) Annualized rates of per capita tree density change (r), centred on the midpoints of each time span (e.g., a value of r based on photos taken in 1980 and 1990 is centred on 1985). Ecological Models and Data in R by Ben Bolker is a great book for learning applied ways to manipulate data, formulate analyses, and generate graphics in R. (2005) Applied linear statistical models. Bolker's book is a must-buy for anyone wanting to fit data to models and go beyond hypothesis testing, but it is certainly not an 'introductory' text in the sense of 'simple'. Ecological Models and Data in R. Core rules Bestiary expanded Home Privateer Press 2 Core rules Bestiary expanded Blighted Nyss The blighted Nyss are the degenerate and corrupt servants of the dragon Everblight Once members of a rugged race. Other good resources are Logistic Regression Models (Chapman &amp; Hall/CRC Texts in Statistical Science) and Modern Regression Techniques Using R: A Practical Guide . For this reason, data were Box-Cox transformed and analysed using the lme mixed model procedure (nlme package). New Jersey: Princeton University Press; 2008. This post is actually about replicating the figures in Otto and Day: A Biologist's Guide to Mathematical Modeling in Ecology and Evolution. (2008) Ecological models and data in R. In practice, this usually And in ecology, the world often is overdetermined, by which I mean simply that many different combinations of processes are sufficient to generate the observed data, with no one of them being necessary. The figures I'm interested in for this post are M <- matrix( c(20/33, -2/11, 8/33, 46/33) , ncol=2 ) A <- eigen (M)$vectors D <- diag(eigen(M)$values) N <- array( dim=c(11, 2) ) n0 <- matrix( c(2,1) ) N[1,] <- n0 for(i in 2:11){ N[i,] <- A %*% D^(i-1) %*% solve(A) %*% n0 } N <- as.data.frame(N). O'Hara & Kotze (2010) Do not log-transform count data. TITLE: Introduction to Bolker's book, "Ecological Models and Data in R". In the wake of Steve Hubbell's very influential application of a neutral population genetics model to ecology, ecologists seem increasingly keen to develop “neutral” or “null” models for all sorts of ecological phenomena.