Essays about: "food webs"

Showing result 6 - 10 of 37 essays containing the words food webs.

  1. 6. Common Guillemots Uria aalge Alter Trip Patterns During Breeding

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Mica Bohacek; [2022]
    Keywords : Common Murre; Stora Karlsö; trip duration; trip frequency; central-place foragers; feeding rate; time-budget;

    Abstract : Seabirds are facing immense pressures, primarily induced by competition with commercial fisheries; this is of considerable concern due to the critical role that they play in marine food webs and their invaluable function as bioindicators. In this thesis, I studied the temporal change in trip duration for the Common Guillemot Uria aalge, a circum-arctic seabird species. READ MORE

  3. 7. Investigation of the binding effect of fungal fiber (grown on apple pomace) in the formation of lyocell nonwoven textiles and their potential applications

    University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Author : Xue Luo; [2021]
    Keywords : lyocell; nonwovens; binder; filamentous fungi; wet-laid; fungal microfibers; apple pomace; cellulose;

    Abstract : This project combines nonwoven technology, biological technology and food waste management and seeks for this feasibility to use fungal microfiber (FM) as a binder for lyocell pro-duction and the characterizations for possible applications. Rhizopus delemar was cultivated apple pomace in liquid-state fermentation to obtain mycelia biomass. READ MORE

  4. 8. Växt-växtbaserad kommunikation : hur sortblandningar påverkade tillväxten hos vårkorn

    University essay from SLU/Dept. of Ecology

    Author : Alexander Pettersson; [2021]
    Keywords : allelobios; allelopati; flyktiga organiska substanser; vårkorn;

    Abstract : Växter utgör grunden för många ekosystem och näringskedjor. Som platsbundna organismer behöver växter kunna anpassa sig efter de rådande förutsättningarna kring växtplatsen. Växter anpassar sig inte bara efter abiotiska faktorer, utan även stress från skadegörare och andra växter spelar en stor roll för en växtens överlevnad. READ MORE

  5. 9. Efficiency of diatom and flagellate-based marine food webs.

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Yasmina Hamladji; [2021]
    Keywords : phytoplankton; flagellate; diatoms; ciliates food web efficiency; fungi;

    Abstract : 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. READ MORE

  6. 10. The effects of eutrophication and browning on prey availability and performance of the three-spined stickleback (Gasterosteus aculeatus)

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Olivia Bell; [2021]
    Keywords : Baltic Sea; benthic habitats; body growth; climate change; coastal areas; diet; fish; stickleback; zooplankton;

    Abstract : Shallow coastal areas often have high productivity and diversity, in part due to the high availability of light and nutrients. At the same time, they are exposed to multiple environmental pressures, such as browning and eutrophication. READ MORE