Sökning: "Common guillemot Uria aalge"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Common guillemot Uria aalge.

  1. 1. Diving Deep: Seabird foraging tactics and local prey field

    Master-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Elin Andersson Sjöholm; [2024]
    Nyckelord :Common Guillemot; Uria aalge; Optimal Foraging theory; Hydroacoustic data; resource selection;

    Sammanfattning : Foragers in patchy environments need to decide what patches to use and how to allocate their time between them. Optimal foraging theory describes these choices through the relationship between energy expenditure and energy gain. LÄS MER

  3. 2. Temperature dependent preening behaviour in common guillemots Uria aalge

    Kandidat-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Saga-Savanna Kynman; [2023]
    Nyckelord :common guillemot; common murre; seabirds; Stora Karlsö; heatstress; temperature; preening; allopreening;

    Sammanfattning : As global temperature increase, new thermal conditions may challenge the physiological limits of endotherms. Examining the direct effects of extreme temperatures is an important component in understanding how these physiological limits may impact an organism’s behaviour, breeding success and survival. LÄS MER

  4. 3. Common Guillemots Uria aalge Alter Trip Patterns During Breeding

    Kandidat-uppsats, SLU/Dept. of Animal Environment and Health

    Författare :Mica Bohacek; [2022]
    Nyckelord :Common Murre; Stora Karlsö; trip duration; trip frequency; central-place foragers; feeding rate; time-budget;

    Sammanfattning : Seabirds are facing immense pressures, primarily induced by competition with commercial fisheries; this is of considerable concern due to the critical role that they play in marine food webs and their invaluable function as bioindicators. In this thesis, I studied the temporal change in trip duration for the Common Guillemot Uria aalge, a circum-arctic seabird species. LÄS MER

  5. 4. Common Guillemots Uria aalge Alter Trip Patterns During Breeding

    Kandidat-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Mica Bohacek; [2022]
    Nyckelord :Common Murre; Stora Karlsö; trip duration; trip frequency; central-place foragers; feeding rate; time-budget;

    Sammanfattning : Seabirds are facing immense pressures, primarily induced by competition with commercial fisheries; this is of considerable concern due to the critical role that they play in marine food webs and their invaluable function as bioindicators. In this thesis, I studied the temporal change in trip duration for the Common Guillemot Uria aalge, a circum-arctic seabird species. LÄS MER

  7. 5. Seasonal changes in clupeids maturation constrains the food quality of chicks of the common guillemot (Uria aalge) : A case study of a potential mismatch, from the perspective of the common guillemot chicks on Stora Karlsö, the Baltic Sea

    Master-uppsats, Stockholms universitet/Stockholm Resilience Centre

    Författare :Emelie Delphin; [2018]
    Nyckelord :Common guillemot Uria aalge ; Sprat Sprattus sprattus ; Herring Clupea herengus ; Match-mismatch hypothesis; the Baltic Sea;

    Sammanfattning : Background: Common guillemots are integral elements of the Baltic Sea marine ecosystem. They possess life-history characteristics such as relatively long lifespan, quite low fecundity resulting in only one egg per breeding season – characteristics that make them particularly vulnerable to even small changes in the environment. LÄS MER