Search for dissertations about: "Ecological factors"

Showing result 16 - 20 of 287 swedish dissertations containing the words Ecological factors.

  2. 16. Rift Valley fever : challenges and new insights for prevention and control using the “One Health” approach

    Author : Osama Ahmed Hassan Ahmed; Magnus Evander; Clas Ahlm; Joacim Rocklöv; Maria Van Kerkhove; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Rift Valley fever; Sociocultural practices; Community involvement; Ecological factors; Risk map; Early warning system; Surveillance system; International Health Regulations; and One Health approach.; Epidemiology; epidemiologi; folkhälsa; Public health;

    Abstract : Rift Valley fever (RVF) is an emerging viral zoonosis that causes frequent outbreaks in east Africa and on the Arabian Peninsula. The likelihood of RVF global expansion due to climate change and human anthropogenic factors is an important issue. READ MORE

  4. 17. Regional and local variation in plant species richness

    Author : Cecilia Dupré; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; coastal meadows; deciduous forests; dry grasslands; grazing; habitat configuration; habitat quality; hump-shaped curve; life history traits; regional species pool; soil factors; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; ekologisk botanik; Ecological Botany;

    Abstract : In this thesis, I examine the variation in plant species richness along gradients of productivity and disturbance in grasslands and forest habitats in southern Sweden, and I compare the documented patterns with theoretical predictions. Moreover, I evaluate the relative importance of habitat quality and habitat configuration for the occurrence of field layer species in deciduous forests. READ MORE

  5. 18. Phlorotannins in intertidal brown algae: inducing factors and ecological roles

    Author : Elisabet Brock; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  6. 19. Dual Careers of Swedish University Student-Athletes : A Synthesis of Holistic Developmental and Ecological Approaches

    Author : Lukas Linnér; Natalia Stambulova; Kristina Ziegert; Judy Van Raalte; Högskolan i Halmstad; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; dual career; student-athlete; university; holistic developmental approach; holistic ecological approach; and dual career assistance; dubbel karriär; elitidrottande student; universitet; holistiskt utvecklingsperspektiv; holistiskt ekologiskt perspektiv; och stödmodell;

    Abstract : The Swedish dual career (DC) system has a history of providing support at the gymnasium/upper secondary level since the early 1970s. Since 2012, there has been a call from the European Union to member states to develop a support provision throughout athletes’ DCs based on national research. READ MORE

  7. 20. Investigations of the influence of physical factors on some marine ecological systems

    Author : Jörgen Öberg; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecological systems; Modelling; Water exchange; Nutrients; Macroalgae; Cyanobacteria; Zoobenthos;

    Abstract : This thesis is about the conditions for life in the sea. The marine life forms may look disparate, but are joined by their common dependence of the fluid medium which they inhabit. The motion and the properties of the water in the sea largely determine the conditions with which all maritime organisms have to comply. READ MORE