Sökning: "John Parker"

Hittade 2 avhandlingar innehållade orden John Parker.

  1. 1. The Northward Course of the Anthropocene : Transformation, Temporality and Telecoupling in a Time of Environmental Crisis

    Författare :Eric Paglia; Sverker Sörlin; Nina Wormbs; Charles Parker; John McNeill; KTH; []
    Nyckelord :HUMANIORA; HUMANITIES; Anthropocene; Arctic; Fernand Braudel; environmental and climate crisis; environmental history; expertise; polar geopolitics; securitization; Svalbard; telecoupling; History of Science; Technology and Environment; Historiska studier av teknik; vetenskap och miljö; Statsvetenskap med inriktning mot krishantering och internationell samverkan;

    Sammanfattning : The Arctic—warming at twice the rate of the rest of the planet—is a source of striking imagery of amplified environmental change in our time, and has come to serve as a spatial setting for climate crisis discourse. The recent alterations in the Arctic environment have also been perceived by some observers as an opportunity to expand economic exploitation. LÄS MER

  3. 2. 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