Sökning: "resource specialization"
Visar resultat 1 - 5 av 57 avhandlingar innehållade orden resource specialization.
1. Hydro-Kinetic Energy Conversion : Resource and Technology
Sammanfattning : The kinetic energy present in tidal currents and other water courses has long been appreciated as a vast resource of renewable energy. The work presented in this doctoral thesis is devoted to both the characteristics of the hydro-kinetic resource and the technology for energy conversion. LÄS MER
2. Bottom-up and top-down regulation of heterogeneous lake food webs
Sammanfattning : Food webs are networks of organisms linked by trophic interactions that regulate the responses of ecosystems to environmental change. Such regulation is a result of the effects of resources on the abundance of their consumers (i.e. bottom-up effects) and/or the influence of consumers on the abundance of their resources (i. LÄS MER
3. Marine Current Resource Assessment : Measurements and Characterization
Sammanfattning : The increasing interest in converting energy from renewable resources into electricity has led to an increase in research covering the field of marine current energy, mainly concerning tidal currents and in-stream tidal turbines. Tides have the advantage of being predictable decades ahead. LÄS MER
4. Interplay Between Environment and Genes on Morphological Variation in Perch – Implications for Resource Polymorphisms
Sammanfattning : Recent research has suggested that individual specialization within populations could be substantial and more common than previously acknowledged. Eurasian perch is one of many species of fish in lakes of postglacial origin that displays a morphological and dietary variation tightly coupled to the littoral and pelagic habitats of the lake. LÄS MER
5. Modeling Oil Exploration and Production : Resource-Constrained and Agent-Based Approaches
Sammanfattning : Energy is essential to the functioning of society, and oil is the single largest commercial energy source. Some analysts have concluded that the peak in oil production is soon about to happen on the global scale, while others disagree. LÄS MER