Sökning: "Pieris napi"

Visar resultat 11 - 15 av 16 avhandlingar innehållade orden Pieris napi.

  1. 11. Escape flight in butterflies

    Författare :Maria Almbro; Cecilia Kullberg; Ronald Rutowski; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Flight; Lepidoptera; gamete load; lipid accumulation; predation risk; hibernation; Biology; Biologi; zoologi; Zoology;

    Sammanfattning : Flight is considered to be the overarching reason for the enormous diversity and world-wide abundance of insects. Not only does flight enable great distances to be covered and new areas to be colonised, flying has also evolved to be important in most adult life-history characteristics from reproduction to anti-predator strategies. LÄS MER

  3. 12. Functional genomics of diapause in two temperate butterflies

    Författare :Peter Pruisscher; Karl Gotthard; Dieter Ebert; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; diapause induction; adaptation; genomics; transcriptomics; populationsgenetik; Population Genetics;

    Sammanfattning : Natural selection will act on a given phenotype to maximize fitness in a particular environment, even if this would result in reduced fitness in other environments. In insects some of the strongest selection pressures act on timing life cycles to seasonal variation in environmental conditions, in order to maximize growth, reproduction, and to anticipate the onset of winter. LÄS MER

  4. 13. Unraveling the regulatory mechanisms of pupal diapause termination

    Författare :Philip Süess; Philipp Lehmann; Christian Wegener; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diapause; diapause termination; prothoracicotropic hormone; ecdysone; thermal performance; Functional Zoomorphology; funktionell zoomorfologi;

    Sammanfattning : Diapause is an essential part of many insect’s life cycle and is a developmental halt induced by environmental cues in advance of deteriorating conditions. Insects typically enter diapause to avoid unfavorable environmental conditions like low temperatures, poor food quality and the absence of conspecifics. LÄS MER

  5. 14. The age of museomics : How to get genomic information from museum specimens of Lepidoptera

    Författare :Elsa Call; Biodiversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Museomics; Museum specimens; Lepidoptera; WGS; Target enrichment; Phylogenomics; NGS;

    Sammanfattning : In the age of museomics, the ability to sequence the genetic material from old museum specimens provides an invaluable and often untapped molecular resource. The application of the latest Next-Generation sequencing (NGS) technologies to such specimens allows us to utilise the diverse biobank that is natural history museums. LÄS MER

  7. 15. Allocation of body resources to reproduction in butterflies

    Författare :Fredrik Stjernholm; Bengt Karlsson; Christer Wiklund; Jane K. Hill; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Zoology; Ecology; Butterflies; Reproduction; Life histories; Trade-offs; Resource use; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Sammanfattning : The life-history of an organism can be studied and understood in terms of acquisition and expenditure of resources. In butterflies, the use of resources for reproduction has been the focus of much research due to the possibility to easily quantify both the input of resources from different sources over the life-cycle as well as the partitioning of these resources to reproduction. LÄS MER