Search for dissertations about: "Institutionen för ekologi och evolution."
Showing result 1 - 5 of 125 swedish dissertations containing the words Institutionen för ekologi och evolution..
-
1. Genomic and morphological diversity of marine planktonic diatom-diazotroph associations : a continuum of integration and diversification through geological time
Abstract : Symbioses between eukaryotes and nitrogen (N2)-fixing cyanobacteria (or diazotrophs) are quite common in the plankton community. A few genera of diatoms (Bacillariophyceae) such as Rhizosolenia, Hemiaulus and Chaetoceros are well known to form symbioses with the heterocystous diazotrophic cyanobacteria Richelia intracellularis and Calothrix rhizosoleniae. READ MORE
-
2. Mapping incomplete relational data : networks in ecology & evolution
Abstract : We live in an interconnected world full of complex systems that cannot be understood simply by analyzing their components. From how genes regulate biological functions to the distribution of life on Earth, we need methods that can analyze systems as a whole. READ MORE
-
3. Structural Growth in Mountain Birch, Betula pubescens ssp. czerepanovii
Abstract : In this thesis, I have studied long shoot performance in the monoecious, deciduous tree Betula pubescens ssp. czerepanovii. READ MORE
-
4. Chemical Communication and Mate Choice : Investigations into the Meaning of a Fruit Fly Pheromone
Abstract : Chemical signals are the most widely used form of sexual communication throughout the living world. However, there is in general little knowledge about what these signals actually communicate. The role of chemical signals, i.e. READ MORE
-
5. Links Between Structure and Function of Heterotrophic Aquatic Bacterial Communities
Abstract : Heterotrophic bacteria utilize dissolved organic matter, and the carbon flow through an ecosystem depends on the fractions of the utilized carbon that is either respired or transferred to higher trophic levels. The major aim this thesis is to investigate 1) the relationship between composition and functioning in heterotrophic bacterioplankton communities and 2) the influence of environmental conditions on both parameters. READ MORE