Sökning: "ecology urban"

Visar resultat 16 - 20 av 58 avhandlingar innehållade orden ecology urban.

  1. 16. Fragmented landscapes : Assessment and communication of landscape connectivity in human-dominated landscapes

    Författare :Arvid Bergsten; Örjan Bodin; Bo Ebenman; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Fragmentation; Connectivity; Network; Spatial; Landscape; Dispersal; Planning; Social-Ecological; Scale; IIC; STS; naturresurshushållning; Natural Resources Management;

    Sammanfattning : This licentiate thesis summarizes the first half of my PhD on the theme of management of fragmented landscapes. The thesis applies – and reflects on the use of – network analysis of connectivity in relation to landscape planning. LÄS MER

  3. 17. Traditional use of wildlife in modern society : public attitudes and hunters' motivations

    Författare :Per Ljung; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Populations of many large mammals and birds are increasing in many parts of Europe and North America. At the same time, the number of hunters is generally decreasing and an increasing proportion of people live in urban areas. LÄS MER

  4. 18. Diversity, dispersal, and interactions among diving beetles and mosquitoes in Swedish wetlands

    Författare :Elisabeth Lundkvist; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In this thesis, I explore why biodiversity, as exemplified by diving beetle and mosquito faunas, differs between wetlands, and what environmental factors that affect and control diversity in different types of wetlands and landscapes. The study organisms, diving beetles (Dytiscidae) and mosquitoes (Culicidae), are abundant and species-rich groups in many types of wetlands. LÄS MER

  5. 19. A Deep Dive into Sediments : Exploring approaches to assess environmental risks and achieving environmental goals in management of contaminated sediments in Sweden

    Författare :Peter Bruce; Clare Bradshaw; Yvonne Ohlsson; Anna Sobek; Sabine Apitz; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Sediment; risk assessment; risk evaluation; risk management; contaminants; regulations; weight of evidence; line of evidence; environmental goals; environmental management; guidelines; marin ekotoxikologi; Marine Ecotoxicology;

    Sammanfattning : Contaminated sediments are common, especially near urban and industrialized areas, and they can have negative ecological effects. In three studies, I explore the challenges for environmental management of contaminated sediments, focusing on environmental risk assessment (ERA) in Sweden. LÄS MER

  7. 20. Gene expression and antibiotic resistance in Escherichia coli from Swedish inland waters

    Författare :Sirirat Poonlapthawee; Jana Jass; Per-Erik Olsson; Allan Sirsjö; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi;

    Sammanfattning : Extensive use of antibiotics both from human-medicine and veterinary sources are believed to provide selective pressure on bacteria that leads to an increase in antibiotic resistance in environmental waters. Contamination of antibiotic resistant microbes will raise human health risks. LÄS MER