Sökning: "boldness"

Visar resultat 16 - 20 av 22 avhandlingar innehållade ordet boldness.

1. 16. Fish on drugs : behaviour modifying contaminants in aquatic ecosystems

   Författare :Annelie Lagesson; Jonatan Klaminder; Tomas Brodin; Kathryn Arnold; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Aquatic ecosystems; Behavioural effects; Ecotoxicology; Endocrine disruptors; Pharmaceuticals; Interaction effects; ekotoxikologi; Ecotoxicology;

   Sammanfattning : Contamination of surface waters is a worldwide problem. One group of emerging contaminants that reach aquatic ecosystems via sewage treatment plant effluents and agricultural run-offs is pharmaceuticals. LÄS MER

3. 17. The prey perspective - behaviour and appearance in a world of predators

   Författare :Johan Ahlgren; Enhet akvatisk ekologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Local adaptation; predator regime; phenotypic plasticity; inducible defence; mortality; animal personality; predator; trait-compensation;

   Sammanfattning : The varieties of prey phenotypes that have been revealed in nature are vast and many of these phenotypes are the result of the selective force that predators have had on prey traits in the past. Even within species and populations we see variations due to both differences in the selection forces they live under but also due to individual trait variation. LÄS MER

4. 18. Conservation, personality and ecology of the European mink (Mustela lutreola)

   Författare :Marianne Haage; Bodil Elmhagen; Anders Angerbjörn; Kaarina Kauhala; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; European mink; Mustela lutreola; Conservation; Personality; Individual specialism; Diet; American mink; Neovison vison; Intraguild competition; zoologisk ekologi; Animal Ecology;

   Sammanfattning : Loss of biodiversity is a growing problem and hence conservation of species is becoming increasingly important. In this dissertation conservation issues related to the critically endangered European mink (Mustela lutreola) are examined in situ (in the wild) and ex situ (in captivity) on both an individual and community level. LÄS MER

5. 19. Theodor Wåhlin - Arkitekten och restaureringskonsten. En yrkesbiografi

   Författare :Hans Ponnert; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; restoration; art of restoration; professional biography; cultural buildings; architect; churches; Theodor Wåhlin;

   Sammanfattning : The aim of this doctoral thesis is to make a contribution to the architect’s profession in Sweden by focusing on the life and thework of Theodor Wåhlin (1864–1948)The dissertation provides a deeper understanding of the part of an architect’s work that concerns the restoration of historicbuildings by investigating, in biographical form, the career of one architect and thus also shedding light on the art of restorationin its practical application.Theodor Wåhlin was active in Scania from the 1890s. LÄS MER

7. 20. Insights into Marine Fish Physiology in a Changing World

   Författare :Karine Bresolin de Souza; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ocean acidification; carbon dioxide; temperature; global warming; Hippoglossus hippoglossus; Gasterosteus aculeatus; immune system; energy metabolism enzymes; oxidative stress; proteomics; behaviour;

   Sammanfattning : Ocean acidification and global warming are largely caused by increased levels of atmospheric CO2, and marine fish are exposed to both these stressors simultaneously. Although the effects of temperature on fish have been investigated over the last century, the effects of moderate CO2 exposure and the combination of both stressors are not well-understood, especially long-term effects. LÄS MER