Sökning: "Food web efficiency"
Visar resultat 1 - 5 av 12 uppsatser innehållade orden Food web efficiency.
1. Change in uptake and transfer of zinc in the food chain when predatory fish disappear from the system
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : There is a widespread distribution of possibly toxic heavy metals, such as zinc, in aquatic ecosystems. Simultaneously aquatic food webs are changing due to declining predatory fish stocks. LÄS MER
2. Diversification of predators in multi-trophic communities: A trait-based theoretical approach
Master-uppsats, Lunds universitet/Examensarbeten i bioinformatikSammanfattning : One of the main challenges in ecology and evolutionary biology is to understand how biodiversity emerges and is maintained, given the complexity of ecological and evolutionary processes combined. Understanding how multi-trophic interactions occur from a theoretical perspective is highly relevant for our understanding of diversification in complex ecosystems. LÄS MER
3. Efficiency of diatom and flagellate-based marine food webs.
Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskapSammanfattning : Aquatic microbial food webs are in general size structured. Phytoplankton, which constitute the base of the food web, are grazed by protozoa and mesozooplankton, which in turn are consumed by planktivorous fish. Food web efficiency (FWE) is a measure of how efficiently energy is transported up the food web. LÄS MER
4. Lean i ett medelstort livsmedelsföretag för produktionseffektivisering : hur kan Lean implementeras i ett medelstort livsmedelsföretag med syftet att skapa långsiktiga effektivitetsvinster?
M1-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)Sammanfattning : Lean Produktion är resultatet av den arbetsfilosofi som familjen Toyoda under 1800-talet tillämpade inom sina vävstolsfabriker och som sedan vidareutvecklades inom industrin och tjänstesektorn. Under 1940-talet grundades bilmärket Toyota, filosofin togs med in i bilindustrin och blev senare hyllat av hela världen. LÄS MER
5. A Secondary Packaging Solution Development Suitable for E-groceries through the Identification of Food Product and Logistic Requirements
Master-uppsats, Lunds universitet/FörpackningslogistikSammanfattning : Secondary packaging solutions presently used to package food goods in e-commerce supply chain are either taken from old supply chains, or sub-optimally developed in a non-holistic manner. Due to the increase use of the Internet in Europe to perform online food purchases, secondary packaging must be adapted to meet these new needs. LÄS MER