Essays about: "tundra"

Showing result 16 - 20 of 47 essays containing the word tundra.

  1. 16. Fjällräven i ett föränderligt klimat

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Emma Marander; [2022]
    Keywords : fjällräv; vulpes lagopus; klimatförändringar;

    Abstract : Climate change is an ongoing threat to the world´s biodiversity, and has an alarming effect on the Arctic. One species that can only be found in this particular habitat is the arctic fox, whose future is threatened by the aversive effects of global warming. The aim of this study was to investigate how climate change is affecting the arctic fox. READ MORE

  3. 17. Tundra carbon cycling in relation to sea-ice decline in a warming Arctic

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Juliane Glinski; [2022]
    Keywords : sea-ice decline; warming Arctic; earlier growing season; arctic tundra; heterotrophic and autotrophic respiration; climate warming; Earth and Environmental Sciences;

    Abstract : We set out to investigate whether arctic tundra acted as a sink or source of carbon dioxide (CO2) between 1980-2014 and to relate changes in the net carbon balance to Arctic sea-ice decline. We want to understand how climate change and arctic warming influence arctic carbon cycling. READ MORE

  4. 18. Diversification of predators in multi-trophic communities: A trait-based theoretical approach

    University essay from Lunds universitet/Examensarbeten i bioinformatik

    Author : Julio Antonio Ayala Lopez; [2022]
    Keywords : Biology and Life Sciences;

    Abstract : One of the main challenges in ecology and evolutionary biology is to understand how biodiversity emerges and is maintained, given the complexity of ecological and evolutionary processes combined. Understanding how multi-trophic interactions occur from a theoretical perspective is highly relevant for our understanding of diversification in complex ecosystems. READ MORE

  5. 19. Impact of vegetation mycorrhizal type on fungal community composition in arctic tundra

    University essay from SLU/Dept. of Soil and Environment

    Author : Leah Kirchhoff; [2021]
    Keywords : arctic climate change; shrubification; fungal metabarcoding; ectomycorrhiza; ericoid mycorrhiza;

    Abstract : on the effects of vegetation and associated changes on above and below-ground processes in tundra soils. In a sub-arctic alpine tundra heath, vegetation composition was manipulated by removing plant species with certain mycorrhizal associations. READ MORE

  6. 20. Quantifying changes in soil bioporosity in subarctic soils after earthworm invasions

    University essay from

    Author : Joel Fransson Forsberg; [2021]
    Keywords : Biopores; macropores; geoengineering earthworms; X-ray tomography;

    Abstract : Pores provide important hotspots for chemical and biological processes in soils. Earthworm burrows affect the macropore structure and their actions may create new preferential pathways for water and gas flow within soils. This, in turn, indirectly affect plants, nutrient cycling, hydraulic conductivity, gas exchange, and soil organisms. READ MORE