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Showing result 1 - 5 of 217 essays matching the above criteria.

  1. 1. Diving Deep: Seabird foraging tactics and local prey field

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Elin Andersson Sjöholm; [2024]
    Keywords : Common Guillemot; Uria aalge; Optimal Foraging theory; Hydroacoustic data; resource selection;

    Abstract : Foragers in patchy environments need to decide what patches to use and how to allocate their time between them. Optimal foraging theory describes these choices through the relationship between energy expenditure and energy gain. READ MORE

  3. 2. If a Tree Falls in the Forest - Three Interventions in the Swedish Forest to Come

    University essay from KTH/Arkitektur

    Author : Nils Chigot Eriksson; Hampus Thysell; [2023]
    Keywords : Forest; timber industry; foraging; hunting; industry; industrial buildings; infrastructure; CCF; clear-felling; Norrland; Ångermanland;

    Abstract : Our thesis project consists of three architectural interventions: The Mushroom, The Gnat and The Snake, fitting into a vision of a Swedish forest managed in a more sustainable way. A future in which the practice of clear-felling has been abandoned in favor of alternative methods falling under the umbrella term Continuous Cover Forestry (CCF). READ MORE

  4. 3. Vibrational signals as indicators of soil fauna health? : A novel approach to environmental monitoring of ants

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

    Author : Joel Fransson Forsberg; [2023]
    Keywords : Vibrations; Formica ants; Vibrometer; Vibrational signals; Imidacloprid; Before-After-Control-Impact;

    Abstract : Soil fauna provides processes of crucial importance for ecosystem functions, but our ability to observe their actions often depend on destructive methods where the integrity of the studied environment (the soil) is compromised. In this study, I develop and test a new generation of environmental monitoring tools that utilize vibrations made by soil macrofauna to inform about their performance and health. READ MORE

  5. 4. Behavioral response of reindeer (Rangifer tarandus) to acoustic stimuli

    University essay from SLU/Dept. of Ecology

    Author : Johanna Börs; [2023]
    Keywords : reindeer; Rangifer tarandus; acoustic stimuli; behavioral response; flight response; induced fear;

    Abstract : Scare systems based on acoustic stimuli have been tested on several ungulates in recent years. The aim has been to investigate whether the method can be useful in situations where the animals must quickly be displaced from a specific site, for example, to prevent wildlife accidents. READ MORE

  6. 5. Egg-laying and nesting behavior of common eider at Stora Karlsö

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Anna Olsson; [2023]
    Keywords : ;

    Abstract : The population of common eider (Somateria mollissima) has suffered a dramatic decline in several breeding locations since the 1990s. Predation is described as one of the main reasons, along with other suggested explanations such as food shortage, environmental pollutants, and thiamine shortage. READ MORE