Search for dissertations about: "metapopulation"

Showing result 21 - 25 of 31 swedish dissertations containing the word metapopulation.

  2. 21. Interactions between plants, microbes and insects

    Author : Laura J. A. van Dijk; Ayco J. M. Tack; Arjen Biere; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; aboveground–belowground interactions; Anemone nemorosa; fungal pathogens; insect herbivores; plant–pathogen–insect interactions; pollination; soil microorganisms; spatiotemporal disease dynamics; Quercus robur; ekologi och evolution; Ecology and Evolution;

    Abstract : Plants interact with an astonishing diversity of insects and microorganisms. Both above- and belowground, plants are attacked by herbivores and pathogens, and interact with mutualists such as pollinating insects and beneficial microorganisms. READ MORE

  4. 22. Conservation biology and genetic structure of fringe populations of the scarce heath butterfly in Sweden

    Author : Anna Cassel; Volker Loeschcke; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; fragmentation; genetic structure; mobility; inbreeding; habitat requirements; Lepidoptera; Genetik; Clinical genetics; Klinisk genetik; Conservation Biology; naturvårdsbiologi;

    Abstract : During the past century, about 82% of meadows and pastures have been lost in Sweden, with negative consequences for their flora and fauna. An example is the scarce heath butterfly, which is one of the red-listed species threatened by such habitat loss through afforestation. READ MORE

  5. 23. Local and regional dynamics of Succisa pratensis

    Author : Mikael Mildén; Johan Ehrlén; Ove Eriksson; Juha Tuomi; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; plant ecology; Biology; Biologi;

    Abstract : Land use change is considered to be one of the biggest threat to global species diversity. In Sweden, abandonment of grazing is one of the most common reasons for decline in species richness in semi-natural grasslands. Today semi-natural grasslands often occur as more or less isolated fragments. READ MORE

  6. 24. Population viability analysis under environmental change : development of Bayesian tools

    Author : Alejandro Ruete; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : An understanding of the links between population dynamics and environmental variability, combined with information on how these factors change over time, is necessary to understand and predict population dynamics and viability in changing environments. Scientists need also to acknowledge uncertainties in their understanding of systems, which is straightforward using Bayesian statistics. READ MORE

  7. 25. Insights into the ecology and genetics of lichens with a cyanobacterial photobiont

    Author : Katja Fedrowitz; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Nature conservation requires an in-depth understanding of the ecological processes that influence species persistence in the different phases of a species life. In lichens, these phases comprise dispersal, establishment, and growth. READ MORE