Sökning: "Biology Terrestrial"

Visar resultat 1 - 5 av 60 avhandlingar innehållade orden Biology Terrestrial.

1. 1. Biology of Borrelia garinii Spirochetes

   Författare :Pär Comstedt; Sven Bergström; Wolfram R. Zückert; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Borrelia garinii; Lyme borreliosis; birds; migration; reservoir host; complement; Ixodes ricinus; Europe; Asia; infection cycle; Molecular biology; Molekylärbiologi;

   Sammanfattning : Lyme borreliosis is a tick-transmitted infectious disease. The causative agents are spiral-shaped bacteria and the most common sign of infection is a skin rash at the site of the tick bite. LÄS MER

3. 2. Climate Related Impacts on a Lake : From Physics to Biology

   Författare :Thorsten Blenckner; Rita Adrian; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Ecosystem processes; climate; phytoplankton; NAO; SCI; ice cover; modeling; Biologi; Biology; Biologi; limnologi; Limnology;

   Sammanfattning : Climatic variation and change affect the dynamics of organisms and ecosystem processes. This thesis examines phytoplankton as a target variable to trace climatic impacts on Lake Erken (Sweden) with special emphasis on the spring bloom. LÄS MER

4. 3. Symbiosis in Arbuscular Mycorrhizal Fungi : Unearthing genomic signatures

   Författare :Shadi Eshghi Sahraei; Anna Rosling; Vasilis Kokkoris; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; arbuscular mycorrhizal fungi; mutualistic symbiosis; soil microeukaryotic communities; phylogenomics; single spore assembly; gene family evolution; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

   Sammanfattning : Arbuscular mycorrhizal (AM) fungi have been on earth since 470 million years ago. AM fungi form mutualistic symbiosis with most terrestrial plants and thus, are thought to have played important roles in land colonization together with plants. LÄS MER

5. 4. Forest – stream linkages : Brown trout (Salmo trutta) responses to woody debris, terrestrial invertebrates and light

   Författare :Pär Gustafsson; Eva Bergman; Larry Greenberg; Kurt Fausch; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Brown trout; growth; foraging; woody debris; terrestrial invertebrates; light; riparian zone; forestry; stream; Freshwater ecology; Limnisk ekologi; Biology; Biologi;

   Sammanfattning : Forests surrounding streams affect aquatic communities in numerous ways, contributing to energy fluxes between terrestrial and lotic ecosystems. The five papers in this thesis focus on woody debris, terrestrial invertebrates and light, three factors influenced by riparian zone structure, potentially affecting streams and brown trout (Salmo trutta). LÄS MER

7. 5. Water Quality and Optical Properties of Swedish Lakes and Coastal Waters in Relation to Remote Sensing

   Författare :Niklas Strömbeck; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; water quality; inherent optical properties; remote sensing; bio-optical models; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; limnologi; Limnology;

   Sammanfattning : Semi-analytical models for remote sensing of water quality parameters need to be parameterized with specific inherent optical properties. In this thesis, data on specific inherent optical properties of Swedish lakes and coastal waters is presented. Also, the problems of measuring in situ spectral backscattering are addressed. LÄS MER