Search for dissertations about: "COLONIES"

Showing result 1 - 5 of 113 swedish dissertations containing the word COLONIES.

  2. 1. Growth in Aging Colonies : The Importance of Being Different

    Author : Marie Wrande; Diarmaid Hughes; Måns Ehrenberg; Mikael Rhen; Uppsala universitet; []
    Keywords : ;

    Abstract : The accumulation of rifampicin resistant (RifR) mutants in aging bacterial colonies has previously been attributed to stress-induced mutagenesis. Mutations giving rise to RifR are located in the rpoB gene, coding for the β subunit of RNA polymerase, RpoB. READ MORE

  4. 2. Development constrained – Essays on land as a factor in nineteenth-century industrialization and trade

    Author : Dimitrios Theodoridis; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; economic development; industrialization; 19th-century; land; ecological footprint; land productivity; colonies; coal; slave trade; trade; ghost acres; empire; sustainability;

    Abstract : This dissertation consists of an introductory chapter, four research essays and one essay that describes the collected dataset. The first essay examines how the balance of land embodied in British trade developed during the nineteenth century and provides the first all encompassing accounts on this topic. READ MORE

  5. 3. The impact of cormorant nesting colonies on plants and arthropods

    Author : Gundula S. Kolb; Peter Hambäck; Lenn Jerling; Post David; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; seabirds; cormorants; islands; nitrogen; phosphorus; plants; arthropods; δ15N; Baltic Sea; ecological stoichiometry; species richness; species composition; numeric response; Biology; Biologi; Plant Ecology; växtekologi;

    Abstract : Seabirds concentrate large amounts of marine nutrients on their nesting islands. This nutrient input can have large consequences for island food webs and community structure. The high nutrient load may also cause runoff into surrounding waters and affect marine communities. READ MORE

  6. 4. Mating structure and nestmate relatedness in primitively social hymenoptera as revealed by microsatellites

    Author : Peter A. Thorén; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; Genetik; Clinical genetics; Klinisk genetik; Genetics; genetik;

    Abstract : Mating structure and nestmate relatedness have been estimated in social Hymenoptera with different levels of sociality. Microsatellite markers have been developed for both communal bees (Andrena scottica) and for primetively eusocial wasps (Vespula rufa). READ MORE

  7. 5. Sex and symbionts : New discoveries in local and regional patterns of coral ecology and reproduction

    Author : Micaela Hellström; Michael Tedengren; Mats Grahn; John A. H. Benzie; Nancy Knowlton; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Indo-Pacific; S. elegans; G. fascicularis; Symbiodinium; size; reproduction; allozymes; ITS2; mtDNA; geography; environment; Marine ecology; Marin ekologi; marin ekotoxikologi; Marine Ecotoxicology;

    Abstract : Coral reefs belong to the most diverse and the most threatened ecosystems on earth. Anthropogenic stressors and climate change have led to mortalities at levels unprecedented in modern times. The aims of this thesis are to investigate aspects of the corals’ ability to reproduce, disperse, adapt and survive. READ MORE