Sökning: "Local adaptations"

Visar resultat 1 - 5 av 63 avhandlingar innehållade orden Local adaptations.

  1. 1. Geographic variation in life cycles : Local adaptation and ecological genetics in a temperate butterfly

    Författare :Olle Lindestad; Karl Gotthard; Sören Nylin; Christopher W Wheat; Greg Ragland; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; voltinism; local adaptation; insect; life cycle; seasonality; genomics; life history; zoologisk ekologi; Animal Ecology;

    Sammanfattning : Conditions in nature change with the seasons, necessitating seasonal adaptations that synchronize the life cycles of organisms with their surroundings. Such regulatory adaptations must vary between populations to track local variation in climate and seasonality; this local adaptation is facilitated by locally specific seasonal cues, but may be hampered by gene flow and genetic history. LÄS MER

  3. 2. The evolution of flat periwinkles Littorina fabalis and L. obtusata emhasizing mitochondrial introgression and restricted recombination

    Författare :Petri Kemppainen; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Speciation; Local adaptations; Ecotypes; Mitochondrial DNA; Introgression; Restricted recombination; Positive selection; Inversions; Chromosomal rearrangements;

    Sammanfattning : The evolution of species takes in general very long time and different mechanisms are likely to operate during the various stages of this process. Accordingly speciation should be studied at different levels of species divergence. LÄS MER

  4. 3. Reproductive traits in euryhaline gobies: insights into physiology, adaptations and biological invasions

    Författare :Leon Green; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sperm; Reproduction; Life-history Strategies; Local Adaptation; Fish; Invasion Biology; Salinity;

    Sammanfattning : Organisms are adapted to reproduce in their specific environment by a range of different traits. For many animals, reproduction is tied to specific conditions, that trigger or enable the reproductive events. This thesis deals with traits associated with reproduction, their functions and interactions with the environment. LÄS MER

  5. 4. Managing Mangrove Ecosystem Services for Local Livelihoods and Adaptations in Tanzania

    Författare :Baraka Nyangoko; Håkan Berg; Martin Gullström; Mwita Mangora; Mwanahija Shalli; Johan Hollander; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mangroves; ecosystem services; mangrove management; livelihoods; ecosystem-based adaptation; Tanzania; naturgeografi; Physical Geography;

    Sammanfattning : Recognizing the importance of ecosystem services (ES) for peoples' livelihoods and well-being is important for decision-making processes on conservation. Mangrove ecosystems in Tanzania are protected by law, but they continue to be exposed to degradation and loss, and there is still limited information about the awareness, preferences, status and trends of the ES they provide. LÄS MER

  7. 5. Molecular adaptations of skeletal muscle in health and disease

    Författare :Maja Schlittler; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Appropriate function of skeletal muscle is essential for locomotion, everyday activities and athletic performance. In addition to its mechanic tasks, skeletal muscle communicates with other organs via metabolic pathways and regulatory processes. LÄS MER