Sökning: "sillgrissla"

Hittade 3 uppsatser innehållade ordet sillgrissla.

  1. 1. 3D-Reconstruction of the Common Murre

    Master-uppsats, Linköpings universitet/Datorseende

    Författare :Johannes Hägerlind; [2023]
    Nyckelord :pose estimation; shape estimation; 3D reconstruction; articulated mesh; bird; common murre;

    Sammanfattning : Automatic 3D reconstruction of birds can aid researchers in studying their behavior. Recently there has been an attempt to reconstruct a variety of birds from single-view images. However, the common murre's appearance is different from the birds that have been studied. Moreover, recent studies have focused on side views. LÄS MER

  3. 2. Evaluating camera monitoring of breeding seabirds

    Kandidat-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Elida Lundgren; [2018]
    Nyckelord :;

    Sammanfattning : This thesis was made in collaboration with the Baltic Seabird Project with the purpose of evaluating the possibilities of using cameras to monitor the fledging success of Common Guillemots on Stora Karlsö. Fledging success is measured from the time the egg is laid, hatched, until the chick is 15 days old and considered ready to leave the nest. LÄS MER

  4. 3. Energy intake of Common Guillemot, Uria aalge, chicks at Stora Karlsö, Sweden : influence of changes in the Baltic Sea

    Magister-uppsats, Avdelningen för Biologi

    Författare :Elisabeth Enekvist; [2003]
    Nyckelord :commom guillemot; sprat; Baltic Sea; energy intake; decline; sillgrissla; skarpsill; Östersjön; energiintag; minskning; Gotland;

    Sammanfattning : Observations of feeding behaviour of common guillemots, Uria aalge, in June 2002 at the island Stora Karlsö in the Baltic Sea proper, and measurements of morphology and energy density in the prey fish sprat, Sprattus sprattus, showed that fish delivered to chicks at present are shorter and weigh less than in the 1970s. Long lasting attending periods and a feeding rate of 4. LÄS MER