Essays about: "tundra"

Showing result 1 - 5 of 47 essays containing the word tundra.

  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. Trends in mountain birch seed abundance and its relation to temperature and moth abundance: a ten-year study from Swedish Lapland

    University essay from Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Author : Frida Gustafsson; [2023-02-09]
    Keywords : Betula pubescens; climate change; seed production; Epirrita autumnata; Operophtera brumata; subarctic ecology; folivory; larval abundance;

    Abstract : Boreal forest is the world’s largest terrestrial biome. Being one of the most ubiquitous and coldtolerant tree species in Sweden, the mountain birch forms a unique deciduous treeline and marks the forest-tundra ecotone. READ MORE

  4. 3. TUNDRA

    University essay from Lunds universitet/Industridesign

    Author : Anna Persson; [2023]
    Keywords : Arts and Architecture; Technology and Engineering;

    Abstract : In this bachelors project I am exploring how Phase Change Material can be applied into an office chair to give a cooling effect and reduce the need for air conditioning. The motivation for the project was to find solutions to lower the energy consumption. READ MORE

  5. 4. Do OTC warming effects on ecosystem processes depend on moss species identity, precipitation, and moss removal?

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

    Author : Alexina Brännlund; [2023]
    Keywords : Experimental warming; Subarctic tundra mosses; Productivity; Ecosystem respiration; Decomposition;

    Abstract : Long-term warming experiments in arctic tundra have resulted in reduced moss cover and increased vascular plant cover. As mosses have a major impact on microclimatic conditions, changes in community composition can potentially alter direct and indirect drivers of productivity and decomposition, which are low in arctic ecosystems. READ MORE

  6. 5. Exploring the impact of Formica exsecta ants on soil properties above the tree line in northern Sweden

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

    Author : Filip Pekkari Juto; [2023]
    Keywords : Formica exsecta; ant mounds; soil properties; organic matter content; tundra;

    Abstract : Ants are considered ecosystem engineers due to their effect on the soil properties and their ability to alter the flow of energy and nutrients. Many studies have focused on ants in boreal forests,but few have focused on the ant’s effect on the tundra. READ MORE