Sökning: "Butterfly"

Visar resultat 11 - 15 av 88 avhandlingar innehållade ordet Butterfly.

  1. 11. Butterfly life-history adaptations in seasonal environments

    Författare :Sören Nylin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  3. 12. Pheromone production in the butterfly Pieris napi L

    Författare :Rushana Murtazina; Raimondas Mozuraitis; Joop van Loon; KTH; []
    Nyckelord :Pieris; Lepidoptera; pheromone; aphrodisiaca; antiaphrodisiaca; biosynthesis; flower volatiles; stable isotopes; incorporation; neral; geranial; methyl salicylate; benzyl cyanide; L - phenylalanine;

    Sammanfattning : Aphrodisiac and anti-aphrodisiac pheromone production and composition in the green-veined white butterfly Pieris napi L. were investigated.Aphrodisiac pheromone biosynthesis had different time constraints in butterflies from the diapausing and directly developing generations. LÄS MER

  4. 13. The diapause switch : Evolution of alternative developmental pathways in a butterfly

    Författare :Inger Marie Aalberg Haugen; Karl Gotthard; Dan Hahn; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental plasticity; phenotypic plasticity; developmental switch; threshold trait; life-cycle regulation; direct development; Lepidoptera; zoologisk ekologi; Animal Ecology;

    Sammanfattning : Diapause decision is a classic example of a threshold switch mechanism with cascading effects on morphology, behaviour and life-history traits. This thesis addresses the downstream effects of the insect diapause switch, with the main focus on pathway-specific regulation of life-history traits, using the speckled wood butterfly (Pararge aegeria) as a study species. LÄS MER

  5. 14. Ecology and conservation of the butterfly Lopinga achine

    Författare :Karl-Olof Bergman; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The ecology of the red-listed butterfly Lopinga achine was studied in partly open woodlands in the province of Östergotland, Sweden. Detailed autoecological research is essential for successful conservation of a species, and the present investigation focused on the initial aspects of such work, namely, choice of host plant, habitat selection, and dispersal ability. LÄS MER

  7. 15. Ecology and evolution of butterfly host plant range

    Författare :Niklas Janz; Douglas J. Futuyma; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; zoologisk ekologi; Animal Ecology;

    Sammanfattning : .... LÄS MER