Sökning: "Bottlenecks"
Visar resultat 1 - 5 av 179 avhandlingar innehållade ordet Bottlenecks.
1. Bottlenecks and blowflies : Speciation, reproduction and morphological variation in Lucilia
Sammanfattning : This thesis attempts to improve our understanding of the role of population size for the process of speciation. First, the effect of population size on speciation is studied using several meta-analyses of published laboratory experiments. LÄS MER
2. Ontogenetic bottlenecks : effects on intraguild predation systems and ecosystem efficiency
Sammanfattning : Size-dependent differences between individuals in size-structured organisms have fundamental effect on population and community dynamics. Intraguild predation (IGP) is one specifically interesting constellation that often arises when two size-structured populations interact. LÄS MER
3. District Heating Development : Prosumers and Bottlenecks
Sammanfattning : The overarching objective of the studies in this thesis is to solve issues associated with the current district heating development in order to improve the efficiency, and thus the environmental performance, of district heating systems. More specifically, the aim is to solve issues related to prosumers and bottlenecks in district heating networks. LÄS MER
4. Effects of Post-Glacial Range Expansions and Population Bottlenecks on Species Richness
Sammanfattning : This thesis relates modern speciation theory to the effects of sudden changes in the range and size of populations. Special reference is made to the climatic oscillations during the Quaternary ice ages. LÄS MER
5. Wind Power Integration in Power Systems with Transmission Bottlenecks
Sammanfattning : During the last two decades, the increase in electricity demand and environmental concern resulted in fast growth of power production from renewable sources. Wind power is one of the most efficient alternatives. LÄS MER