Sökning: "natural disturbances"
Visar resultat 11 - 15 av 229 avhandlingar innehållade orden natural disturbances.
11. Transient growth of disturbances in laminar pipe flow
Sammanfattning : Transient growth of disturbances is studied theoretically in pipe Poiseuille flow and experimentally both in pipe and plane Poiseuille flow. The theoretical results, based on the initial value problem, show that a large transient amplification occurs for small, angular dependent disturbances in pipe Poiseuille flow although all modes are damped. LÄS MER
12. Resistance and recolonization of bryophyte assemblages following disturbances : - detecting patterns and exploring mechanisms
Sammanfattning : Disturbances are ubiquitous features of most northern forest ecosystems. The subsequent response of plant assemblages on both short (resistance or not) and long term (recolonization or not) will depend on a number of factors operating at several spatial scales. LÄS MER
13. Genetic Aspects of Environmental Disturbances in Marine Ecosystems : Studies of the Blue Mussel in the Baltic Sea
Sammanfattning : Anthropogenic environmental changes can serve as drivers for evolutionary responses in wild populations. To predict the long-term impact of anthropogenic changes on populations, it is crucial to understand the genetic effects caused by these disturbances. LÄS MER
14. Ecological disturbances: the good, the bad and the ugly
Sammanfattning : Abstract. This thesis focuses on the definitions, characterizations and quantifications of ecological disturbances, as well as hypotheses on their impacts on biological communities. LÄS MER
15. Development of three-dimensional disturbances in pipe poiseuille flow
Sammanfattning : .... LÄS MER