Sökning: "equilibrium populations"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden equilibrium populations.

  1. 1. Modelling the effects of substituting pollinators in decline

    Kandidat-uppsats, Lunds universitet/Matematik LTH

    Författare :Axel Eriksson; [2023]
    Nyckelord :pollinators; plants; mutualism; competition; equilibrium populations; Mathematics and Statistics;

    Sammanfattning : While pollination is essential for many plant species and ecosystem functions, pollinator populations worldwide are declining. This decline is largely due to abiotic changes in the environment: climate change and other anthropogenic impacts, such as pesticides and land use change. LÄS MER

  3. 2. Lavar i skogsöar i en fragmenterad skogsmiljö

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Christian Mendez From; [2023]
    Nyckelord :Boreal forest; Fragmentation; Habitat; Lichenes; Island biogeography; Species-area concept.;

    Sammanfattning : Epiphytic lichens are important species in the forest ecosystem. The Swedish forestry model affects them by fragmenting large old continuous forests. These fragments could be used as islands in a test of MacArthur and Wilsons theory of island biogeography. LÄS MER

  4. 3. Multi Agent Reinforcement Learning for Game Theory : Financial Graphs

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Bryan Yu; [2021]
    Nyckelord :Multi-Agent Reinforcement Learning; Reinforcement Learning; Game Theory; Financial Networks; Financial Graphs; Machine Learning; Financial Graphs; Computational Economics; Multi-Agent Reinforcement Learning; Reinforcement Learning; Game Theory; Financial Networks; Financial Graphs; Machine Learning; Financial Graphs; Computational Economics;

    Sammanfattning : We present the rich research potential at the union of multi agent reinforcement learning (MARL), game theory, and financial graphs. We demonstrate how multiple game theoretic scenarios arise in three node financial graphs with minor modifications. We highlight six scenarios used in this study. LÄS MER

  5. 4. Golden Eagle (Aquila chrysaetos) genomics across Scandinavia : population structure and effects of marker selection

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Måns Näsman; [2018]
    Nyckelord :aquila chrysaetos; rad-seq; marker selection; hardy weinberg; population structure;

    Sammanfattning : Rapid development in DNA-sequencing has led to increased use of single nucleotide polymorphisms (SNPs) as molecular markers in wildlife genetic studies. RAD-sequenced SNP-markers can produce large datasets that are successfully used in studies on animal population structure. LÄS MER

  7. 5. Abundances of iron-peak elements in disk and bulge giant stars from high-resolution optical spectra

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Maria Lomaeva; [2018]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : Context. The formation and evolution of the Galactic bulge and the Milky Way is still a debated subject. Observations of, e.g. LÄS MER