Search for dissertations about: "zooekologi"

Showing result 1 - 5 of 82 swedish dissertations containing the word zooekologi.

  1. 1. Mutual Mate Choice in the Deep Snouted Pipefish Syngnathus typhle

    University dissertation from Uppsala : Zooekologi

    Author : Maria Widemo; Uppsala universitet.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; Sexual selection; mutual mate choice; mate competition; sex role reversal; parental investment; Biologi; NATURAL SCIENCES Biology; NATURVETENSKAP 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

  2. 2. Female Reproductive Strategies in the Ruff (Philomachus pugnax)

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Katherine Thuman; Uppsala universitet.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ekologi; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology; NATURVETENSKAP Biologi Terrestisk; limnisk och marin ekologi; Animal Ecology; zooekologi;

    Abstract : Traditionally, females have been considered to be strictly monogamous. Today, we know that females in the majority of species actively seek out and mate with several males. Trying to understand female preferences, including what benefits mate choice entails, has been the focus of intense research during the last decades. READ MORE

  3. 3. Population divergence at small spatial scales – theoretical and empirical investigations in perch

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Sara Bergek; Uppsala universitet.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Perca fluviatilis L.; Perch; Small scale genetic differentiation; Morphometrics; Isolation by distance; Dispersal; Gene flow; Microsatellites; Spatiotemporal stability; Barriers; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology; NATURVETENSKAP Biologi Terrestrisk; limnisk och marin ekologi; Animal Ecology; zooekologi;

    Abstract : Genetically structured populations arise when gene flow between groups of individuals is hindered by geographical, behavioural or temporal barriers. The identification of such groups is important for understanding evolution and has large implications for conservation concern. READ MORE

  4. 4. Sexual selection and the evolution of sex-role reversal in honeylocust beetles

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Karoline Fritzsche; Uppsala universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Zooekologi; Animal Ecology;

    Abstract : Sexual selection is the prime evolutionary force that makes males and females different. This process has long been viewed as one where male compete with one another and where females choose. READ MORE

  5. 5. Quantitative Trait Evolution in a Changing Environment in a Seed Beetle

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Lára R. Hallsson; Uppsala universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; quantitative trait; genetic variance; environmental change; temperature; seed beetle; sexual dimorphism; plasticity; inheritance; Animal Ecology; Zooekologi;

    Abstract : During the last decades the climate has been changing more rapidly than in the preceding periods. This is for instance characterized by an increase in temperature. Interestingly, such changes in the environment are not necessarily constant over time as they often show high levels of fluctuation. READ MORE