Browsing Doctoral Theses / Doktorsavhandlingar Institutionen för biologi och miljövetenskap by Title
Now showing items 87-106 of 109
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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 ... -
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 ... -
Sexual signalling and noise pollution - implications for courtship behaviour and reproductive success in two vocal species of marine gobies
(2017-08-24)Many marine animals use acoustic signals to mediate social interactions. Acoustic cues and signals are especially important in water because sound is unique as a sensory modality propagating with little attenuation over ... -
Shipworm ecology in Swedish coastal waters
(2015-03-11)Shipworms (Teredinidae) are marine bivalves adopted for boring into submerged wood, which they efficiently fragmentize and consume. They thereby perform a vital ecosystem service, yet simultaneously they cause extensive ... -
Skötsel av ekblandskogar: naturvårdsgallring och respons hos träd och buskar
(2015-09-24)Det senaste århundradet har skogsbruket intensifierats med storskaliga skogsplanteringar, speciellt gran, och brukande genom kalhyggen. Detta har inneburit en homogenisering av landskapet och många naturtyper har gått ... -
Species Delimitation and Phylogenetic Relationships. A study of Silene sections Atocion and Cryptoneurae
(2014-09-02)Abstract The existence of conflicting genealogies of different genes through the evolution of species complicates the inference of phylogenetic relationships. The Multispecies Coalescent (MSC) model provides a theoretical ... -
Structural and functional studies of the ATP-dependent Clp proteases in cyanobacteria
(2014-09-17)Proteins are essential in all living organisms and they are involved in a myriad of biological functions. It is vital for cells to have efficient surveillance and quality control systems that ensure damaged proteins are ... -
Taxonomy and Systematics of Thelephorales – Glimpses Into its Hidden Hyperdiversity
(2020-10-22)The order Thelephorales is a widespread group of many thousands of species of ecologically important, ectomycorrhizal fungi, of which only a fraction have been described to date. Most species are corticioid (skin-like) and ... -
The Effects of Temperature on Gut Blood Flow and Gut Motility in Fish
(2012-03-09)In order for a fish to grow and thrive, the gut must function efficiently. This is achieved through a range of processes, including controlled patterns of gut motility and modifications in gut blood flow. How these processes ... -
The future for microplankton in the Baltic Sea - Effects of SWS and climate change
(2017-03-17)The Baltic Sea is located between 53°N to 66°N and from 10°E to 30°E and is the second largest brackish water body in the world. It consists of several basins where the Baltic Proper is the major water mass. Around 85 ... -
The influence of atmospheric circulation and meteorology on urban air pollution and pollen exposure
(2015-05-18)Urban air quality is a global health concern and is a growing problem due to large migration of people from rural areas to cities, a phenomenon occurring in many parts of the world. This means that more and more people can ... -
The influence of herbivory on shrub expansion in the Scandes forest-tundra ecotone
(2016-12-13)Arctic and alpine ecosystems are experiencing fundamental changes in vegetation composition due to increasing temperatures. One of the most palpable of these changes is the expansion of shrubs on the treeless tundra, ... -
The Pace of Life of Juvenile Brown Trout - Inter- and Intra-individual Variation in Growth and Behaviour
(2015-10-09)The pace-of-life (POL) syndrome hypothesis is the prevailing model used for explaining the differences in how animals live their lives. The POL syndrome is a framework connecting life-history traits (traits describing the ... -
Thermal plasticity and limitations in tropical trees
(2022-09-12)Tropical forests are the most carbon dense and biodiverse terrestrial biome on earth. In a time of global warming and biodiversity crisis, their preservation must be of high priority. At the same time, they likely operate ... -
Thermal tolerance in teleost fish –importance of cardiac oxygen supply, ATP production and autonomic control
(2017-04-07)Temperature tolerance is a key determinant of the resilience and adaptability of fish facing a warmer and more thermally variable future with climate change. Yet, the underlying physiological mechanisms determining the ... -
Tomorrow is yesterday: early-life conditions shape ectotherm life histories
(2023-09-29)Life history theory seeks to explain the overwhelming diversity of resource allocation strategies in nature by exploring how evolutionary forces optimise survival and reproduction within an organism’s environment. Central ... -
Trans-life Cycle Impacts of Ocean Acidification on the Green Sea Urchin Strongylocentrotus droebachiensis
(2013-09-16)This thesis studies the impacts of ocean acidification on an ecologically and economically important invertebrate of the Nordic waters: the green sea urchin Strongylocentrotus droebachiensis. Acidification affects the ... -
Tree stomatal regulation and water use in a changing climate - From tropical to boreal ecosystems
(2015-11-12)Rising levels of atmospheric carbon dioxide concentration ([CO2]) and temperature have the potential to alter stomatal behavior and tree water use, which has implications for forest hydrology and climate. Many models ... -
Vesicle transport in chloroplasts with emphasis on Rab proteins
(2014-02-28)Chloroplasts perform photosynthesis using PSI and PSII during its light-dependent phase. Inside the chloroplast there is a membrane called thylakoid. The thylakoid membranes are an internal system of interconnected membranes ... -
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 ...