Sökning: "Paternal role"

Visar resultat 1 - 5 av 41 avhandlingar innehållade orden Paternal role.

  1. 1. Masculinizing fatherhood : sexuality, marriage and race in the U.S. Fatherhood Responsibility Movement

    Författare :Anna Gavanas; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; U.S. Fatherhood Responsibility Movement; Fatherhood; Paternal role; Male role; Family; Family politics; United States; Fadersrollen; Familjer; Familjepolitik; Förenta staterna; Mansrollen; Manlighet;

    Sammanfattning : Diss.... LÄS MER

  3. 2. Egg size evolution and paternal care in pipefishes

    Författare :Inês Braga Gonçalves; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Egg size; embryo development; embryo survival; hypoxia; male quality; mate choice; mating constraints; oxygen; parental care; parental effects; paternal care; reproductive compensation; sex-role reversal; sexual conflict; Syngnathidae; Syngnathus typhle;

    Sammanfattning : In this thesis I explore how sexual selection, sexual conflicts, coevolution with parental care and an environmental selective agent (hypoxia) affect the evolution of different egg characteristics and embryo survival and size in pipefishes (Syngnathidae). In the broad-nosed pipefish, Syngnathus typhle Linnaeus, both sexes prefer to mate with large partners; large females produce more and larger eggs and large males can care for more young, and, as shown in this thesis, invest more per embryo and provide better oxygenation during brooding. LÄS MER

  4. 3. Sex-role reversal in two pipefish (Syngnathidae) species : paternal care and male limitation of female reproductive success

    Författare :Ingrid Ahnesjö; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 4. Reproductive investment in Syngnathus typhle, the broad-nosed pipefish

    Författare :Ines Goncalves; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Syngnathidae; sex-role reversal; paternal care; male quality; female choice; maternal effects; reproductive compensation; embryo development; brood reduction.;

    Sammanfattning : Manuscripts: 1 - Reproductive compensation by broad-nosed pipefish females. 2 - Male size is a predictor of quality of parental care in the broad-nosed pipefish... LÄS MER

  7. 5. Parental cancer and children’s well-being : understanding the potential role of psychological stress

    Författare :Chen Ruoqing; Fang Fang; Unnur Valdimarsdóttir; Katja Fall; Kamila Czene; Corinna Bergelt; Sweden Stockholm Karolinska Institutet Institutionen för Medicinsk Epidemiologi och Biostatistik; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Early life stress has a major influence on one’s health through the life course. During childhood, early experience may not only affect the normal brain development, but also influence the susceptibility to mental and physical disorders. LÄS MER