Search for dissertations about: "freshwater and marine ecology Marine ecology"
Showing result 21 - 25 of 129 swedish dissertations containing the words freshwater and marine ecology Marine ecology.
-
21. Attached Bacterial Communities in Lakes – Habitat-Specific Differences
Abstract : For many years, the importance of microorganisms attached to surfaces in littoral zones and wetlands has been disregarded when describing aquatic ecosystem dynamics. Supporting evidence is scarce but convincing that these microbial communities are not only very productive but can often serve as major regulators of nutrient and carbon dynamics in many freshwaters. READ MORE
-
22. Behavioural ecology of Indo-Pacific bottlenose and humpback dolphins
Abstract : Dolphins in East Africa face various threats, such as direct hunt, bycatch and habitat degradation. It is therefore important to undertake research that can facilitate necessary conservation and management actions to minimize these threats. READ MORE
-
23. The effects of crayfish on interactions in freshwater benthic communities
Abstract : This thesis examines how freshwater crayfish affect community interactions in benthic food webs. I have mainly studied the influence of the introduced signal crayfish (Pacifastacus leniusculus) on littoral communities, but also the influence of the native noble crayfish (Astacus astacus). READ MORE
-
24. Effects of forest fire and the ecology of fire-adapted insects
Abstract : Fire is widely recognised for its major impact on boreal forest ecosystems. The altereddisturbance regime due to effective fire suppression and extensive forestry may be a majorthreat to biodiversity.If logging preceded burning, the pyrophilous (Gr. fire-loving) beetle Sericoda quadripunctata failed to reproduce. READ MORE
-
25. Interactions between Bacteria and Fungi on Aquatic Detritus – Causes and Consequences
Abstract : Bacteria and fungi dominate the decomposition of aquatic plants, a major process in the carbon and nutrient cycling in many aquatic systems. Although phylogenetically distant, bacteria and fungi often live in close proximity with each other. Since these microorganisms also have similar ecological functions, interactions have developed between them. READ MORE