Search for dissertations about: "Mate choice"

Showing result 1 - 5 of 52 swedish dissertations containing the words Mate choice.

  2. 1. Chemical Communication and Mate Choice : Investigations into the Meaning of a Fruit Fly Pheromone

    Author : Björn G. Johansson; Göran Arnqvist; Fredrik Widemo; Anders Berglund; Allen Moore; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Drosophila grimshawi; sexual selection; pheromone; mate choice; lekking; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : Chemical signals are the most widely used form of sexual communication throughout the living world. However, there is in general little knowledge about what these signals actually communicate. The role of chemical signals, i.e. READ MORE

  4. 2. Mutual Mate Choice in the Deep Snouted Pipefish Syngnathus typhle

    Author : Maria Widemo; John D. Reynolds; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; Sexual selection; mutual mate choice; mate competition; sex role reversal; parental investment; Biologi; Biology; Biologi; Animal Ecology; zooekologi;

    Abstract : This thesis integrates the fields of sexual selection, parental investment and sex role theory by investigating mutual mate choice and mate competition in the sex role reversed deep snouted pipefish Syngnathus typhle (Pisces: Syngnathidae) through a series of laboratory experiments. In S. READ MORE

  5. 3. Choice, competition, and interactions between episodes of sexual selection

    Author : Charel Reuland; John Fitzpatrick; Ingo Schlupp; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; contest competition; sperm competition; mate choice; cryptic choice; sperm quality; reproductive status; social dominance; etologi; Ethology;

    Abstract : Choice and competition are essential parts of evolutionary biology. In an effort to pass their genes from one generation to the next, animals may carefully choose their mating partners, and/or compete for access to mates. READ MORE

  6. 4. The Evolution of Sexually Homologous Ornaments : Selection via Male Mate Choice Coinciding with Male-Male Competition in a Neotropical Mosquito

    Author : Sandra South; Göran Arnqvist; Russell Bonduriansky; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; sexual selection; Sabethes cyaneus; Diptera; Culicidae; mosquito; mutual ornamentation; sexual selection; mutual mate choice; male mate choice; female ornament; ecology; animal behaviour; Ethology and behavioural ecology; Etologi och beteendeekologi; Animal Ecology; Zooekologi;

    Abstract : The evolution of elaborate male ornaments via sexual selection is well-understood while the selective pressures acting on female ornaments remains unresolved. Female ornaments in species with strong sexual selection on the male homologue of the ornament were originally thought to result from an intersexual genetic correlation. READ MORE

  7. 5. 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