Search for dissertations about: "species composition"
Showing result 21 - 25 of 698 swedish dissertations containing the words species composition.
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21. Effect of environmental factors on bacterioplankton community composition, diversity and functionality
Abstract : The ocean covers more than 70 % of the Earth surface and represents the largest ecosystem on Earth. Bacteria are an important part of the marine food web not only in remineralisation but also since they utilize dissolved organic matter (DOM) and make the energy available to higher trophic levels. READ MORE
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22. Distribution patterns of macroinvertebrates in vegetated shallow soft-bottom bays of the Baltic Sea
Abstract : .... READ MORE
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23. Species interactions in streams - effects of predation, competition and ecosystem properties
Abstract : Stream ecosystems are dynamic and they have an inherent environmental variability. Organisms that live in streams are adapted to the continuously changing environment and the presence or absence of species are determined by their environmental requirements, while abundance is most often affected by interactions, such as competition and predation, with other species that are found in the same habitat. READ MORE
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24. Diversifying the utility and species composition of Nordic forage systems : new fractionation methods and novel legume species
Abstract : Leys, a temporary grassland grown as part of a crop rotation, represent an essential component of agricultural production in the Nordic countries. This thesis explores methods to diversify the utility of feed produced from leys through fractionation, as well as increase the diversity of legume species within the stand. READ MORE
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25. Surface reactions on metallic nanoparticles : Ligand adsorption, metal release, and reactive oxygen species generation
Abstract : Humans are exposed daily to metallic nanoparticles (Me NPs) from multiple sources which can have both natural and anthropogenic origins. Such exposures take place via different routes including inhalation and skin contact and may result in adverse health effects. READ MORE