Blar i forfatter "Baggesen, Nanna Schrøder"

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    • Deepened winter snow significantly influences the availability and forms of nitrogen taken up by plants in High Arctic tundra 

      Mörsdorf, Martin Alfons; Baggesen, Nanna Schrøder; Yoccoz, Nigel Gilles; Michelsen, Anders; Elberling, Bo; Ambus, Per Lennart; Cooper, Elisabeth J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-13)
      Climate change may alter nutrient cycling in Arctic soils and plants. Deeper snow during winter, as well as summer warming, could increase soil temperatures and thereby the availability of otherwise limiting nutrients such as nitrogen (N). We used fences to manipulate snow depths in Svalbard for 9 consecutive years, resulting in three snow regimes: 1) <i>Ambient</i> with a maximum snow depth of ...

    • High Arctic flowering phenology and plant-pollinator interactions in response to delayed snow melt and simulated warming 

      Gillespie, Mark; Baggesen, Nanna Schrøder; Cooper, Elisabeth J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-11-15)
      The projected alterations to climate in the High Arctic are likely to result in changes to the short growing season, particularly with varying predicted effects on winter snowfall, the timing of summer snowmelt and air temperatures. These changes are likely to affect the phenology of interacting species in a variety of ways, but few studies have investigated the effects of combined climate drivers ...

    • High Arctic plant phenology is determined by snowmelt patterns but duration of phenological periods is fixed: an example of periodicity 

      Semenchuk, Philipp; Gillespie, Mark; Rumpf, Sabine Bettina; Baggesen, Nanna Schrøder; Cooper, Elisabeth J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-11-29)
      The duration of specific periods within a plant’s life cycle are critical for plant growth and performance. In the High Arctic, the start of many of these phenological periods is determined by snowmelt date, which may change in a changing climate. It has been suggested that the end of these periods during late-season are triggered by external cues, such as day length, light quality or temperature, ...