Sökning: "coevolution"

Visar resultat 1 - 5 av 28 avhandlingar innehållade ordet coevolution.

  1. 1. Digital Capability : Investigating Coevolution of IT and Business Strategies

    Författare :Johan Sandberg; Holmström Jonny; Ola Henfridsson; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Digital capability; IT strategy; coevolution; IT innovation; digital innovation; organizational evolution; practice research; strategy-as-practice; evolutionary theory;

    Sammanfattning : This dissertation investigates the role of information technology (IT) in organizational strategy. Specifically, it examines how organizations can persist in turbulent competitive landscapes characterized by IT innovations. LÄS MER

  3. 2. Evolution of host repertoires and the diversification of butterflies

    Författare :Mariana Pires Braga; Niklas Janz; Sören Nylin; Fredrik Ronquist; Alexandre Antonelli; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; coevolution; host-parasite interaction; inference; networks; zoologisk ekologi; Animal Ecology;

    Sammanfattning : All herbivorous insects are specialized to some extent to their host plants, but the level of specialization varies greatly. Insect-plant coevolution is often invoked to explain the large diversity of herbivorous insects, but the role of specialization during diversification is still controversial. LÄS MER

  4. 3. Development and Resilience : Re-thinking poverty and intervention in biocultural landscapes

    Författare :L. Jamila Haider; Maja Schlüter; Wiebren Boonstra; M. Jahi Chappell; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biocultural diversity; coevolution; development; interdisciplinary; Pamir Mountains; poverty traps; resilience; social-ecological systems; Sustainability Science; vetenskap om hållbar utveckling;

    Sammanfattning : The practices related to the growing, harvesting, preparation, and celebration of food over millennia have given rise to diverse biocultural landscapes the world over. These landscapes – rich in biological and cultural diversity – are often characterised by persistent poverty, and, as such, are often the target of development interventions. LÄS MER

  5. 4. The Knowledge Arena : Approaching agroforestry and competing knowledge systems - a challenge for agricultural extension

    Författare :Per Hillbur; Institutionen för kulturgeografi och ekonomisk geografi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Tanzania; coevolution; arena perspective; agroforestry; natural resource management; agricultural extension; knowledge systems; Social geography; Socialgeografi;

    Sammanfattning : Agriculture in many African countries is characterised by large diversity in production and great variation in growing conditions, irrigation potential and access to markets. This variation has proved to be a difficult matter when adjusting national agricultural policies and development projects to local conditions. LÄS MER

  7. 5. Trophic, Indirect, and Evolutionary Interactions in a Plant–Herbivore–Parasitoid System

    Författare :Johan Stenberg; Lars Ericson; John Parker; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant resistance; coevolution; herbivory; Skeppsvik; food web; parasitism; maternal effect; natural selection; Filipendula ulmaria; Chrysomelidae; Terrestrial ecology; Terrestisk ekologi;

    Sammanfattning : The aim of this thesis project was to elucidate patterns and processes associated with the biotic interactions in a natural plant–herbivore–parasitoid food web characterized by spatial and temporal heterogeneity with regard to species composition. The system examined is based on island populations of the perennial herb Meadowsweet (Filipendula ulmaria, Rosaceae), located in the Skeppsvik Archipelago. LÄS MER