Search for dissertations about: "Population distribution"

Showing result 1 - 5 of 590 swedish dissertations containing the words Population distribution.

  1. 1. Changing population distribution in Sweden long term trends and contemporary tendencies

    University dissertation from Umeå : Umeå universitet

    Author : Johan Håkansson; Högskolan Dalarna.; Umeå universitet.; [2000]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Population Distribution; Concentration; Dispersion; Accessibility; Migration; Natural increase; Population distribution; redistribution; Sweden; geographical levels; concentration; dispersion; accessibility; migration; natural population change; age composition;

    Abstract : The aim of the thesis is to describe and analyse the population redistribution in Sweden at different geographical levels from the beginning of the 19th century to the end of the 20th century. The analysis is approached in three different ways. First, the redistribution at different geographical levels is analysed (papers I and II). READ MORE

  2. 2. The role of microclimate for the performance and distribution of forest plants

    University dissertation from Stockholm : Department of Ecology, Environment and Plant Sciences, Stockholm University

    Author : C. Johan Dahlberg; Stockholms universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; performance; microclimate; spatial scales; continental; landscape; distribution patterns; distribution limits; phenology; vegetative development; reproductive development; vital rates; population growth rate; vascular plants; bryophytes; distribution modelling; Plant Ecology; växtekologi;

    Abstract : Microclimatic gradients may have large influence on individual vital rates and population growth rates of species, and limit their distributions. Therefore, I focused on the influence of microclimate on individual performance and distribution of species. READ MORE

  3. 3. Biofilms in Nitrogen Removal - Bacterial Population Dynamics and Spatial Distribution

    University dissertation from Göteborg : University of Gothenburg

    Author : Robert Almstrand; Göteborgs universitet.; Gothenburg University.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; AOB; NOB; biofilms; image analysis; FISH; Nitrosomonas; population dynamics; spatial distribution;

    Abstract : Efficient nitrogen removal at wastewater treatment plants (WWTPs) is necessary to avoid eutrophication of recipient waters. The most commonly used approach consists of aerobic nitrification and subsequent anaerobic denitrification resulting in the release of dinitrogen gas into the atmosphere. READ MORE

  4. 4. Ecology and genetic population structure of Indo-Pacific bottlenose dolphins in East Africa

    University dissertation from Stockholm : Department of Zoology, Stockholm University

    Author : Anna Särnblad Hansson; Stockholms universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Tursiops aduncus; population size; distribution; social structure; behaviour; conservation status; mitochondrial DNA; microsatellites; Zanzibar; western Indian Ocean; NATURAL SCIENCES; NATURVETENSKAP; Animal Ecology; zoologisk ekologi;

    Abstract : Many marine mammal populations are threatened by anthropogenic activities. The Indo-Pacific bottlenose dolphins (Tursiops aduncus) off Zanzibar are subject to high levels of bycatch, negative impact from tourism and were previously hunted. READ MORE

  5. 5. Distribution and abundance of genetic variation in the arctic fox

    University dissertation from Stockholm : Zoologiska institutionen

    Author : Love Dalén; Stockholms universitet.; [2005]
    Keywords : population genetics; DNA; ecology; population history; gene flow; Alopex lagopus;

    Abstract : This thesis investigates how changes in population size and spatial movements of individuals have shaped the distribution and abundance of neutral genetic variation in the arctic fox. This is done through mitochondrial and microsatellite DNA analyses on samples covering most of the species’ distribution, but with special emphasis on Scandinavia. READ MORE