Sökning: "foraging distribution"
Visar resultat 1 - 5 av 23 uppsatser innehållade orden foraging distribution.
1. Diving Deep: Seabird foraging tactics and local prey field
Master-uppsats, SLU/Dept. Of Aquatic ResourcesSammanfattning : Foragers in patchy environments need to decide what patches to use and how to allocate their time between them. Optimal foraging theory describes these choices through the relationship between energy expenditure and energy gain. LÄS MER
2. Vibrational signals as indicators of soil fauna health? : A novel approach to environmental monitoring of ants
Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskapSammanfattning : Soil fauna provides processes of crucial importance for ecosystem functions, but our ability to observe their actions often depend on destructive methods where the integrity of the studied environment (the soil) is compromised. In this study, I develop and test a new generation of environmental monitoring tools that utilize vibrations made by soil macrofauna to inform about their performance and health. LÄS MER
3. The foraging distribution of Cape gannets in relation to Addo Elephant National Park Marine Protected Area
Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental StudiesSammanfattning : Seabirds are considered to be the sentinels of the ocean, as they are able to locate their prey in spite of the great heterogeneity of the marine environment. During the breeding season, these central-place foragers not only need to find prey to maintain themselves but also to feed their young. LÄS MER
4. Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall Abstract Unintentional by-catch in fishing gear is a significant cause of mortality of harbour porpoises in UK waters. Understanding the spatial distribution of harbour porpoises at fine scales and how this changes over time is essential when trying to understand where these lethal interactions might occur. LÄS MER
5. FÖDOPREFERENSER HOS BIN En jämförelse mellan pollenpreferenser hos nordiskt honungsbi och Buckfast
Kandidat-uppsats, Göteborgs universitet / Instiutionen för biologi och miljövetenskapSammanfattning : The original honeybee in Sweden, the European dark bee (Apis mellifera mellifera), was lost form the wild during the 19th century. The subspecies survived through beekeeping but began to be exchanged for other honeybees from the beginning of the 20th century and was almost locally extinct a century later. LÄS MER