Doctoral Theses / Doktorsavhandlingar Institutionen för biologi och miljövetenskap: Recent submissions
Visas titlar 81-100 av 105
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Hydrous iridium oxide for in-situ pH sensing: electrodeposition, properties and applications.
(2013-05-20)For heterogeneous processes, such as electrochemical reactions taking place at an elec- trode, the chemical conditions at the reaction interface can differ significantly from the bulk. Consumption of reactants leads to ... -
Adaptation to the Baltic Sea – the case of isopod genus Idotea
(2013-05-16)The three marine isopods of the genus Idotea: I. balthica, I. chelipes and I. granulosa have an important functional role as meso-grazers in the Baltic food web. These meso-grazers are key species in the Fucus belt and in ... -
Intestinal Mucosal Immunology of Salmonids Response to Stress and Infection and Crosstalk with the Physical Barrier
(2013-05-15)The effect of environmental factors and pathogens on the intestinal epithelium of fish has received increased attention in recent years. Studies focusing on effects of stress, nutrient uptake as well as vegetable ingredients ... -
Ecological risk screening of metal (Pb and Zn) contaminated acidic soil using a triad approach
(2013-05-14)Lead (Pb) and zinc (Zn) are common metal contaminants in terrestrial environments. Decisions on remediation of metal contaminated soil are often based on risk estimates derived from generic guideline values. Guideline ... -
Wounding- and pathogen-induced defense responses in plants
(2013-05-08)Microbial pathogens and herbivores that cause disease or inflict damage to plants are ubiquitous in nature. To withstand and counteract invasions by these, plants have evolved several overlapping layers of defense. ... -
Mate choice and its evolutionary consequences in intertidal snails (Littorina spp.)
(2013-05-06)The ability to recognise potential mates and choose the best possible partner for reproduction is of fundamental importance for most animal species. This thesis presents studies of mate choice in marine snails of the genus ... -
Confusions in Fungal Systematics
(2013-05-03)The focus of this thesis has been on fungi with corticioid, polyporoid or stipitate stereoid sporocarps in the Agaricomycetes, but included are also two papers which are methodologically oriented. The family Podoscyphaceae, ... -
Evolution of the brown algae Fucus radicans and F. vesiculosus in the Baltic Sea
(2013-04-25)The aim of my thesis was to investigate neutral and adaptive evolution of a lineage of macroalga (Fucus vesiculosus) that entered the Baltic Sea about 6000 years ago, and later gave rise to a new endemic species, F. radicans. ... -
Mutagenesis and transcriptome mapping in oat and characterization of high β-glucan lines
(2013-04-25)Oat (Avena sativa) is a hexaploid crop that is cultivated in Europe, North America, Russia, Australia and northern China. During recent years, oat has seen increased interest due to its potential as a functional food crop. ... -
Herbivory and biodiversity conservation of the savannah habitats in Akagera National Park, Rwanda
(2013-04-05)Savannahs make up about 20% of the world’s land surface, whereas African savannahs constitute 50% of the land area and have been used as parks to conserve nature and for outdoor recreation. However, conserving biodiversity ... -
Conservation genetics of the cold-water coral Lophelia pertusa (Scleractinia)
(2013-02-21)The cold-water coral Lophelia pertusa is the most important reef-building coral species in the NE Atlantic Ocean. The reef framework creates a complex structural habitat that sustains high species diversity in the deep-sea. ... -
Responses of shallow sediment ecosystems to environmental alterations
(2013-02-14)Shallow-water sediment systems are continuously exposed to a range of anthropogenic stressors, including increased nutrient loading, physical disturbance and toxicants. Superimposed on these local stressors are stressors ... -
Vesicle Transport with Emphasis on Chloroplasts
(2013-02-14)The plants on which we depend for food and oxygen need photosynthesis to prepare their own food. Photosynthesis takes place in the chloroplast. Inside chloroplasts is a specialized membrane called the thylakoids in which ... -
Scale-worm Systematics (Annelida, Polychaeta)
(2013-02-07)Paper I. Scale-worms are segmented worms. They can be found in all marine benthic habitats, including about 1200 species and over 200 genera. There has been little known about the phylogeny of this group and this study is ... -
Ecological aspects of marine Vibrio bacteria - Exploring relationships to other organisms and a changing environment
(2013-02-04)Heterotrophic bacteria of the genus Vibrio are indigenous in the marine environment although environmental cues regulate their growth and distribution. The attention brought to this genus is due to its many species/strains ... -
Seaweed Invasions and Novel Chemical Defences
(2012-11-08)Biological invasions pose a risk to the biodiversity and the functioning of ecosystems in invaded areas. The reasons why some introduced species become dominant and widespread in their new environments is still largely an ... -
Gene expression and regeneration in ophiuroids: A study of transcriptional activity and regeneration in the temperate Amphiura filiformis and Antarctic Ophionotus victoriae
(2012-11-01)Regeneration, in which lost or damaged tissues are re-grown, is a common phenomenon amongst animals and especially so within the ophiuroids (brittle stars) of the phylum echinodermata. The process of regeneration begins ... -
Paternal care and brood reduction in a pipefish
(2012-11-01)From an evolutionary and adaptive perspective, the occurrence and extent of parental care in animals (investment in offspring beyond the genetic contribution) is expected to depend on an optimal (fitness-maximizing) balance ... -
Detoxification Mechanisms in Fish - Regulation and function of biotransformation and efflux in fish exposed to pharmaceuticals and other pollutants
(2012-10-26)It is likely that fish in their natural environment are exposed to mixtures of several pharmaceuticals as well as other pollutants. This may result in adverse effects which are augmented due to the chemical interactions. ... -
Grazer-induced responses in marine phytoplankton
(2012-09-27)Phytoplankton are the most important primary producers in the world’s oceans, yet little is known of how they avoid the constant threats from the pelagic grazers. From land it is well known that plants defend themselves ...