Sökning: "eggs"

Visar resultat 6 - 10 av 143 avhandlingar innehållade ordet eggs.

  1. 6. Biophysical aspects of permeation and diffusion of water in frog eggs

    Författare :Kjell Hansson Mild; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  3. 7. Reproductive physiology of the female three-spined stickleback, Gasterosteus aculeatus

    Författare :Chrysoula Roufidou; Bertil Borg; Geir Lasse Taranger; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; overripening of eggs; spawning cycle; brain-pituitary-gonad BPG axis; vitellogenin; ovarian fluid; sex steroids; reproduction; three-spined stickleback; Gasterosteus aculeatus; fish; funktionell zoomorfologi; Functional Zoomorphology;

    Sammanfattning : Reproduction in vertebrates, including fishes, is under control of the brain-pituitary-gonad (BPG) axis. The female three-spined stickleback, Gasterosteus aculeatus, produces egg clutches at intervals of a few days and spawns them in a nest built by male. LÄS MER

  4. 8. Reproduction of the white-tailed sea eagle Haliaeetus albicilla (L.) in Sweden, in relation to food and residue levels of organochlorine and mercury compounds in the eggs

    Författare :Björn Helander; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  5. 9. Eggshell thickness and levels of DDT, PCB and mercury in eggs of osprey [Pandion haliaetus (L.)] and marsh harrier [Circus aeruginosus (L.)] in relation to their breeding success and population status in Sweden

    Författare :Tjelvar Odsjö; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Birds; metabolism; predatory birds; contamination; toxicity; population dynamics; sweden; Fiskgjuse; Brun kärrhök;

    Sammanfattning : .... LÄS MER

  7. 10. Egg carrying in the golden egg bug

    Författare :Minna Miettinen; Ingrid Ahnesjö; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hemiptera; Halvvingar; zoologi; Zoology;

    Sammanfattning : Females of the golden egg bug, Phyllomorpha laciniata Vill (Heteroptera, Coreidae), lay their eggs on the backs of male and female conspecifics. Eggs survive poorly in nature unless being carried by living conspecifics. The most likely evolutionary explanation to egg carrying is that individuals carry their own eggs. LÄS MER