Essays about: "herbivory"
Showing result 1 - 5 of 30 essays containing the word herbivory.
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1. Hyperspectral and multispectral satellite data analysis of nitrogen in grazed and ungrazed tundra in Långfjället, Sweden
University essay from Göteborgs universitet/Institutionen för geovetenskaperAbstract : 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
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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 geovetenskapAbstract : 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
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3. Reindeer grazing, soil wetness and aspect interact to drive tundra plant community structure in northern Sweden
University essay from Stockholms universitet/Institutionen för naturgeografiAbstract : 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
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4. The secret life of moose : patterns of foraging and behaviour based on video collars
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : To understand how moose forage in the wild, we have to study them without disturbing them then. Video cameras placed on moose are a novel method to study wild individuals without being intrusive. I analyzed video footage from four moose collars, filmed up to nine times a day and filmed from 4 to 11 months, for maximum of 4,5 minutes a day. READ MORE
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5. Direct and indirect effects of roe deer (Capreolus capreolus) herbivory on an island population of Chequered blue butterfly (Scolitantides orion).
University essay from Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : Herbivory by ungulates is a known agent of disturbance in many ecological systems around the globe. At high abundances and through a selective foraging behaviour herbivory may inflict significant direct and indirect effects on local plant and animal communities. READ MORE