Search for dissertations about: "Krzysztof Bartoszek"

Found 2 swedish dissertations containing the words Krzysztof Bartoszek.

  1. 1. Multivariate Aspects of Phylogenetic Comparative Methods

    University dissertation from Göteborg : University of Gothenburg

    Author : Krzysztof Bartoszek; Göteborgs universitet.; Gothenburg University.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; General Linear Model; Ornstein-Uhlenbeck process; Multivariate phylogenetic comparative method; Evolutionary model; Adaptation; Optimality; Measurement error; Regression; Adaptation; Major-axis regression; Reduced major-axis regression; Structural equation; Allometry; Phylogenetic inertia; Allometry; Measurement error; Structural equation; Multivariate phylogenetic comparative method; Ornstein-Uhlenbeck process; Regression; Optimality; Adaptation; Evolutionary model; Phylogenetic inertia; Adaptation; Reduced major-axis regression; Major-axis regression;

    Abstract : his thesis concerns multivariate phylogenetic comparative methods. We investigate two aspects of them. The first is the bias caused by measurement error in regression studies of comparative data. We calculate the formula for the bias and show how to correct for it. READ MORE

  2. 2. Stochastic Models in Phylogenetic Comparative Methods: Analytical Properties and Parameter Estimation

    University dissertation from Göteborg : University of Gothenburg

    Author : Krzysztof Bartoszek; Göteborgs universitet.; Gothenburg University.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Adaptation; Adaptation; Birth-death process; Branching diffusion; Brownian motions; Conditioned branching process; Evolution; General Linear Model; Hybridization; Macroevolution; Measurement error; Multivariate phylogenetic comparative method; Optimality; Ornstein-Uhlenbeck process; Phyletic gradualism; Phylogenetic inertia; Phylogenetic uncertainty; Punctuated equilibrium; Yule tree; Macroevolution; General Linear Model; Branching diffusion; Hybridization; Optimality; Phylogenetic uncertainty; Measurement error; Birth-death process; Conditioned branching process; Evolution; Ornstein-Uhlenbeck process; Phyletic gradualism; Multivariate phylogenetic comparative method; Brownian motions; Phylogenetic inertia; Yule tree; Punctuated equilibrium;

    Abstract : Phylogenetic comparative methods are well established tools for using inter-species variation to analyse phenotypic evolution and adaptation. They are generally hampered, however, by predominantly univariate approaches and failure to include uncertainty and measurement error in the phylogeny as well as the measured traits. READ MORE