Sökning: "Haas"

Visar resultat 1 - 5 av 29 avhandlingar innehållade ordet Haas.

  1. 1. Hybrid zones and speciation – insights from the European crow hybrid zone

    Författare :Fredrik Haas; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; microsatellites; mc1r; introgression; hybrid zone; speciation; European crow; Corvus corone; habitat preferences; neural network; sexual imprinting; assortative mating;

    Sammanfattning : In hybrid zones genetically differentiated populations meet and interbreed. As they result from ongoing divergence and potential speciation, such zones provide opportunities to study how different factors affect this process. The hybrid zone between the all black carrion crow (Corvus corone corone) and the grey and black hooded crow (Corvus c. LÄS MER

  3. 2. Remote Sensing of Urbanization and Environmental Impacts

    Författare :Jan Haas; Yifang Ban; Costas Cartalis; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Remote Sensing; Urbanization; Land Use Land Cover LULC ; Environmental Impact; Landscape Metrics; Ecosystem Services; Geodesy and Geoinformatics; Geodesi och geoinformatik;

    Sammanfattning : This thesis aims to establish analytical frameworks to map urban growth patterns with spaceborne remote sensing data and to evaluate environmental impacts through Landscape Metrics and Ecosystem Services. Urbanization patterns at regional scale were evaluated in China's largest urban agglomerations and at metropolitan scale in Shanghai, Stockholm and Beijing using medium resolution optical satellite data. LÄS MER

  4. 3. Abiotic stress and plant-microbe interactions in Norway spruce

    Författare :Julia Christa Haas; Vaughan Hurry; Nathaniel Street; Torgny Näsholm; Jennifer Baltzer; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Norway spruce; boreal forest; cold; drought; bacteria; fungi; plant-microbe interactions; climate change;

    Sammanfattning : Norway spruce (Picea abies) is a dominant tree species in boreal forests with extensive ecological and economic value. Climate change is threatening these ecosystems, with rising temperatures impacting cold hardening and increasing drought stress in regions experiencing lower precipitation. LÄS MER

  5. 4. Remote Sensing of Urbanization and Environmental Impacts

    Författare :Jan Haas; Yifang Ban; Lars Eklund; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Remote Sensing; Classification; Land Use Land Cover; Support Vector Machine; Random Forest; Urbaniztion; Environmental Impact; Landscape Metrics; Ecosystem Services; Geomatik; Geomatics;

    Sammanfattning : The unprecedented growth of urban areas all over the globe is nowadays maybe most apparent in China having undergone rapid urbanization since the late 1970s. The need for new residential, commercial and industrial areas leads to new urban regions challenging sustainable development and the maintenance and creation of a high living standard as well as the preservation of ecological functionality. LÄS MER

  7. 5. Main streets as resilient public spaces : Zooming in on ground floors in Stockholm

    Författare :Rosa Danenberg; Hans Westlund; Tigran Haas; Vikas Mehta; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Main Street; Public Space; Ground Floor; Morphology; Pandemic; Retail Gentrification; Property Ownership; Street Management; Curation; Stockholm; Urban and Regional Studies; Urbana och regionala studier;

    Sammanfattning : This research focuses on how main streets and ground floors can be adaptable and resilient public spaces. Main streets are vital components of the urban fabric of cities worldwide, serving dual roles as both links and places. LÄS MER