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Showing 1–2 of 2 results
Advanced filters: Author: "Johan Olofsson" Clear advanced filters

  • The importance of disease in modulating ecosystem responses to climate change remains poorly understood. A seven-year study of the effects of increased snow cover on tundra plant communities in Sweden found that, although plant growth was favoured by increased snow, biomass and carbon-balance trends were reversed by a pathogen outbreak.

    • Johan Olofsson
    • Lars Ericson
    • Robert Baxter
    Research
    Nature Climate Change
    Volume: 1, P: 220-223

  • In northern ecosystems, vole and lemming densities vary between years in a regular pattern known as vole and lemming cycles. This study shows that the rodents drive corresponding cycles in vegetation that can be detected from space. The findings should help understand how climate warming will affect tundra ecosystems.

    • Johan Olofsson
    • Hans Tømmervik
    • Terry V. Callaghan
    Research
    Nature Climate Change
    Volume: 2, P: 880-883