Essays about: "reindeer herbivory"

Found 4 essays containing the words reindeer herbivory.

  1. 1. Hyperspectral and multispectral satellite data analysis of nitrogen in grazed and ungrazed tundra in Långfjället, Sweden

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Emma Dahlstedt; [2023-08-18]
    Keywords : Hyperspectral imaging; Imaging spectroscopy; Nitrogen; Reindeer; Herbivory; Tundra; Grazing;

    Abstract : Reindeer are a keystone species in the circumpolar north, where they hold great cultural and ecological importance. Continued climate change threatens the long-term sustainability of reindeer husbandry. Reindeer can affect the tundra landscape, influencing the soil nutrient cycling, including the soil nitrogen availability. READ MORE

  3. 2. Forest, Tree, and Shrub limit responses to a century of climate change in Northern Norway

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Ella Björsbo; [2023]
    Keywords : Climate warming; growing season length; forest limit; tree limit; shrub limit;

    Abstract : Climate changes have been observed in the Northern Hemisphere during the last century, causing a longer growing season and upslope expansion of forest, tree, and shrub limits. Here, a long-term historical perspective was used as a tool for investigating how climate change has impacted woody plants at the forest, tree, and shrub limits across the study region. READ MORE

  4. 3. Reindeer grazing, soil wetness and aspect interact to drive tundra plant community structure in northern Sweden

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Emma Gemal; [2023]
    Keywords : tundra plants; vegetation; abiotic vs. biotic effects; community composition; diversity; reindeer herbivory; accelerometry; grazing;

    Abstract : The relative importance of abiotic versus biotic top-down factors on structuring tundra plant communities is debated. With climate change already strongly affecting the tundra ecosystem, understanding which factors will prevail is vital. READ MORE

  5. 4. Herbivore pressure of reindeer, rodents and invertebrates in the Fennoscandian tundra: a comparison of three methods.

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Malcolm Parsons; [2016]
    Keywords : International Tundra Experiment herbivory protocol; reindeer density; grazing pressure; Fennoscandian mountains;

    Abstract : Estimating herbivore density is an important part of understanding their impact on vegetation.  Many studies have been carried out on the impact of reindeer and other herbivores on arctic and sub-arctic vegetation, but they are difficult to compare as they typically use different methods to estimate herbivore activities. READ MORE