Sökning: "Zebra finch"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Zebra finch.

  1. 1. What modulates telomere dynamics? : Inheritance, developmental effects, and physiological challenges

    Författare :Ye Xiong; MEMEG; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Telomere; Telomere dynamics; Telomere length; telomere inheritance; Zebra finch; Immune challenge; Heritability; Taenopygia guttata; Physiological parameter;

    Sammanfattning : Telomeres are the conservative sequence repeats located at the end of linear chromosomes that have been the focus of intensive research across many disciplines over the last four decades. They function as a cap to protect the chromosome ends from fusion to other chromosomes and to prevent chromosome degradation. LÄS MER

  3. 2. Impacts of urbanisation on birds : Disentangling the effects of multiple pollutants on avian behaviour and physiology

    Författare :Ann-Kathrin Ziegler; Evolutionär ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; artificial light at night; ALAN; antioxidants; great tit; light pollution; LPS; multi-stressor; noise pollution; tropospheric ozone; urbanisation; zebra finch;

    Sammanfattning : Anthropogenic pollution is a pervasive feature of urbanisation, reaching into ecosystems worldwide and posing novel challenges to wildlife. Not surprisingly, differences in behaviour, and physiology, have been found between urban and rural populations. LÄS MER

  4. 3. Light-dependent magnetoreception in zebra finches : - from behaviour to receptor

    Författare :Atticus Pinzon Rodriguez; Funktionell zoologi; []
    Nyckelord :magnetoreception; radical-pair process; magnetic compass; orientation; cryptochrome; Taeniopygia guttata;

    Sammanfattning : It is well known that animals can use a wide variety of information sources to help them orient and navigate asthey move over short or long distances. Birds can rely on information from the sun, the skylight polarizationpattern, the stars, landmarks and the Earth’s magnetic field for orientation and navigation. LÄS MER

  5. 4. Costs and benefits of immune system activation on physiology, behavior and offspring phenotype from an immunoecological perspective

    Författare :Sandra Sköld Chiriac; Evolutionär ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; immunoecology; acute-phase response; sickness behaviors; energy expenditure; fever; hypothermia; life history; maternal effects; terminal investment; costs of immune responses; Taeniopygia guttata; Parus major; Cyanistes caeruleus;

    Sammanfattning : Pathogen challenges and host immune defenses can have substantial impact on life history patterns of animals. Biotic and abiotic factors may affect immunity in wild animals, influencing e.g., population dynamics and sexual selection. LÄS MER

  7. 5. Molecular Evolution of the Vertebrate Genome

    Författare :Kiwoong Nam; Hans Ellegren; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In this thesis, I studied molecular evolution of the vertebrate genome, focusing on sex chromosomes, protein coding genes, and genome size variation. The evolutionary history of avian sex chromosomes was analyzed by comparing substitution rate among 12 gametologous gene pairs on the Z and W chromosomes. LÄS MER