Doctoral Theses / Doktorsavhandlingar Institutionen för biologi och miljövetenskap: Recent submissions
Now showing items 21-40 of 105
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Origin, evolution and biodiversity of the Neotropical herpetofauna: patterns and processes of the world’s richest and most threatened biota
(2019-09-16)The biological diversity of tropical America (the Neotropics) is astonishing. However, even among terrestrial vertebrates, most biogeographical patterns are not fully described nor understood, especially for many Neotropical ... -
Acclimation of boreal Norway spruce to climate change: Empirical and modelling approaches
(2019-09-04)The findings of this thesis have important implications for the projections of future carbon and water fluxes for the boreal region. The observed boreal longterm acclimation responses of respiration and stomatal regulation ... -
Heathlands – A Lost World?
(2019-05-03)Heathland is a familiar landscape type in southwest Sweden. It is open with few trees, and the vegetation is dominated by dwarf-shrubs growing on nutrient-poor soils. Dry heaths with Heather Calluna vulgaris and wet heaths ... -
Polyploid Phylogenetics in Plants: Insights on non-model organisms in Fabaceae and Malvaceae
(2019-05-02)Genome duplication is a common phenomenon in angiosperms and advances in sequencing technologies and bioinformatics is now revealing its prevalence and significance. In a polyploidization event all genes in a genome are ... -
Microplastics in the aquatic environment: Insights into biological fate and effects in fish
(2019-03-26)According to the United Nations, plastic pollution in the natural environment has been identified as one of the biggest environmental challenges of this century and has become a cause for an emerging international concern. ... -
Assessing biodiversity: Beyond the taxonomic impediment
(2018-08-16)Precise and accurate quantification of biological diversity is crucial for many fields of biological research and for understanding ecosystem services, biological interactions, biogeography and designing management strategies ... -
Impacts of recreational boating in coastal seascapes and implications for management
(2018-04-12)Kosterhavet National Park, a marine protected area on the Swedish west coast, is a popular destination for tourists and attracts over half a million visitors annually. Many of the tourists arrive by boat, and the natural ... -
Big data insights into the distribution and evolution of tropical diversity
(2018-04-06)Tropical America (the Neotropics) and tropical Africa have comparable climate and share a geological history as parts of Gondwana. Nevertheless, the Neotropics today harbour roughly three times more flowering plant species ... -
Bivalves in the face of ocean acidification
(2018-03-22)Anthropogenic CO2 emissions are leading to a gradual decrease in ocean pH and changes in seawater carbonate chemistry, a process known as ocean acidification (OA). Such changes in oceanic environmental conditions will ... -
Investigation of [N-X-N]+ and [N-C-N]+ complexes in solution
(2017-11-02)Halogen bonding is a weak interaction. In this thesis the three center four electron halogen bond, [N−X−N]+, has been studied. The lighter halogens form highly unstable halonium ions that are reactive towards nucleophiles ... -
Plant Oxylipins and Lipid Transfer Proteins in Defense
(2017-10-20)Oxylipins, the oxygenated metabolites of polyunsaturated fatty acids (PUFAs), are found in many eukaryotic organisms. In plants, several enzymes can produce different types of oxylipins, and the chloroplast structural ... -
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 ... -
Risk assessment of chemical mixtures in the aquatic environment
(2017-04-26)The total chemical production within the European Union amounts to more than 300 million tonnes per year, of which 140 million tonnes are considered as hazardous to the environment. In order to ensure that these chemicals ... -
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 ... -
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 ... -
Fish coping with stress-Physiology and behaviour in salmonids with focus on stress coping styles, rearing conditions and smolt migration
(2017-03-10)When animals are reared for conservational releases it is paramount to avoid reducing genetic and phenotypic variation over time. Therefore, an understanding of how behavioural and physiological traits affect the performance ... -
Molecular Systematics of Limnodrilus (Annelida, Clitellata)
(2017-02-27)The freshwater Limnodrilus worms (Clitellata: Naididae: Tubificinae) are segmented hermaphroditic annelids, bearing a unique clitellum (“girdle”) during sexual maturity. Some abundant and common taxa of Limnodrilus are ... -
Hey ho, let's go! Vesicle transport in chloroplasts
(2017-02-03)The photosynthetic reactions have been thoroughly studied, but less is known about the biogenesis of the structures harboring the photosynthetic machinery: the thylakoid membranes. Lipids, constituting both the envelopes ... -
Statistical analysis and modelling of gene count data in metagenomics
(2017-01-26)Microorganisms form complex communities that play an integral part of all ecosystems on Earth. Metagenomics enables the study of microbial communities through sequencing of random DNA fragments from the collective genome ... -
Gastrointestinal motility and blood flow in teleosts during digestion and osmoregulation
(2017-01-20)Teleost fishes occupy virtually every aquatic habitat on earth and as a group face a wide range of environmental challenges in their natural habitats, as well as during their life histories. In order to survive and thrive ...