Search for dissertations about: "assortative"

Showing result 1 - 5 of 22 swedish dissertations containing the word assortative.

  2. 1. Genetic Aspects of Sexual Selection and Mate Choice in Salmonids

    Author : Lars Forsberg; Mats Grahn; Jacob Höglund; Claus Wedekind; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; mate choice; Mhc; Major histocompatibility complex; class IIB; disassortative; assortative; microsatellite; outbreeding; supportive breeding; population; population genetics; Biologi; Biology; Biologi;

    Abstract : The long-term genetic consequences of supportive breeding programs are not well understood. Nevertheless, stocking populations with hatchery-produced fish to compensate for losses of natural production are common practice, for example after constructions of hydroelectric power dams. READ MORE

  4. 2. The role of Assortative Mating in the Initial Stages of Sympatric and Parapatric Speciation

    Author : Emma Rova; Mats Björklund; Göran Arnqvist; James Mallet; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Callosobruchus maculatus; host fidelity; assortative mating; inbreeding; experimental evidence; sympatric speciation; parapatric speciation; Biology; Biologi; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

    Abstract : Divergence in the face of gene flow is perhaps the most wildly disputed subject among researchers through time. The debate is an old one and we find its origin as far back as the era of Darwin. READ MORE

  5. 3. Hybrid zone dynamics, assortative mating, and migratory programmes in a willow warbler migratory divide

    Author : Keith W. Larson; Susanne Åkesson; Staffan Bensch; Martin Schaefer; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; migratory divide; phenotype; willow warbler; hybrid zone; tension zone; Phylloscopus trochilus; migratype; assortative mating; migration; biology; biologi; evolutionär genetik; evolutionary genetics; migratory divide; phenotype; willow warbler; hybrid zone; tension zone; Phylloscopus trochilus; migratype; assortative mating; migration;

    Abstract : In this thesis I will compare and contrast the two willow warbler subspecies (Phylloscopus trochilus trochilus and P. t. acredula) with differing migratory phenotypes (or "migratype") in the context of their migratory divide and hybrid zone in central Sweden. Their migratory programs differ in the direction and distance traveled during migration. READ MORE

  6. 4. Essays in Empirical Labour Economics : Family Background, Gender and Earnings

    Author : Lalaina Hirvonen; Anders Björklund; Tor Eriksson; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Intergenerational mobility; Assortative mating; Nonlinearity; Female labour force participation; Sex-mix composition; Cognitive and non-cognitive abilities; Education; Economics; Nationalekonomi; Economics; nationalekonomi;

    Abstract : All three essays in this thesis are concerned with the interrelation of family, gender and labour market outcomes. The first paper investigates family earnings mobility between parents and sons, and parents and daughters, highlighting the role of assortative mating. The results suggest that daughters are more mobile than sons. READ MORE

  7. 5. Essays on Income Risk and Inequality

    Author : Karl Harmenberg; Per Krusell; Fatih Guvenen; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; income risk; income inequality; consumption; durable goods; cyclical skewness; top-income inequality; gender gap; glass ceiling; assortative mating; Economics; nationalekonomi;

    Abstract : Consumption Dynamics under Time-Varying Unemployment Risk We study the response of households' demand for durable goods to fluctuations in unemployment risk. First, using survey data, we document that household durable expenditures react strongly to unemployment risk, while the effect on nondurable expenditures is indistinguishable from zero. READ MORE