Essays about: "Arctic vegetation"

Showing result 16 - 20 of 50 essays containing the words Arctic vegetation.

  1. 16. The role of wood ants (Formica rufa) in the Arctic tundra and how climate change may alter this role

    University essay from

    Author : Michael Meijer; [2020]
    Keywords : Wood ants; ants; mounds; climate change; arctic tundra; ecosystem; ecology; vegetation; arthropods;

    Abstract : In the Arctic tundra, wood ants play an important ecological role in aerating the soil, cycling nutrients, for seed dispersal and, as biological control by preying on forest pest insects during outbreaks. The increase in temperature, caused by climate change, is positively associated with ant abundance. READ MORE

  3. 17. Investigating Sand Dune Location, Orientation and Geomorphometry Through GEOBIA-Based Mapping: A Case Study in Northern Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Melanie Stammler; [2020]
    Keywords : sand dunes; geomorphological mapping; object-based image analysis; landscape development; sanddyner; geomorfologisk kartläggning; geografisk objektbaserad bildanalys; landskapsutveckling;

    Abstract : Climate change has repeatedly been framed as the defining issue of the Anthropocene and with the Arctic changing at unpreceded speed need is high for a profound understanding of the Northern Swedish landscape. Northern Swedish aeolian sand dunes have been impacted by climatic changes throughout time. READ MORE

  4. 18. The role of wood ants (Formica rufa) in the Arctic tundra and how climate change may alter this role

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

    Author : Michael Meijer; [2020]
    Keywords : Wood ants; ants; mounds; climate change; arctic tundra; ecosystem; ecology; vegetation; arthropods;

    Abstract : In the Arctic tundra, wood ants play an important ecological role in aerating the soil, cycling nutrients, for seed dispersal and, as biological control by preying on forest pest insects during outbreaks. The increase in temperature, caused by climate change, is positively associated with ant abundance. READ MORE

  5. 19. Image Augmentation to Create Lower Quality Images for Training a YOLOv4 Object Detection Model

    University essay from Uppsala universitet/Signaler och system

    Author : Tim Melcherson; [2020]
    Keywords : Artificial Intelligence; Image Processing; Convolutional Neural Networks; Deep Learning; YOLO; YOLOv4; Artificiell Intelligens; Bildbehandling; neurala nätverk; djupinlärning;

    Abstract : Research in the Arctic is of ever growing importance, and modern technology is used in news ways to map and understand this very complex region and how it is effected by climate change. Here, animals and vegetation are tightly coupled with their environment in a fragile ecosystem, and when the environment undergo rapid changes it risks damaging these ecosystems severely. READ MORE

  6. 20. Reindeer induced changes in vegetation composition and plant traits on a tundra-forest border

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Femke Pijcke; [2019]
    Keywords : physical geography; ecosystem analysis; plant functional traits; nutrient allocation; grazing; reindeer; Earth and Environmental Sciences;

    Abstract : Reindeer (Rangifer tarandus) are the most common large herbivores in the arctic. With a habitat spreading over the entire circumpolar region, they can have a substantial effect on plant species composition and ecosystem processes and functions. READ MORE