Sökning: "Scavenging"

Visar resultat 1 - 5 av 39 uppsatser innehållade ordet Scavenging.

1. 1. Estimating historic ranges of extinct scavenging birds from North America during the late Pleistocene using co-occurrence data from the fossil record

   Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

   Författare :Melissa Miranda; [2023-06-30]
   Nyckelord :Scavenging birds; Vultures; Co-occurrence Data; Range Estimates; Spatial Autoregressive Models; Co-extinction;

   Sammanfattning : The aim of my study was to estimate and compare the historic range of nine scavenging birds from North America that went jointly extinct with their mammalian megafaunal prey in the Late Pleistocene. Although the severity and timing of their co-extinction are strongly correlated, there has been little analytical support in providing estimates for the possible geographic distribution of scavenging birds prior to the extinction event. LÄS MER

3. 2. Formulation and characterisation of novel edible-packaging for fruits and vegetables

   Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

   Författare :Lola Sutton; Katerina Papa; [2023]
   Nyckelord :algae; edible packaging; carrageenan; cucumber; REL; oxidative stress; antioxidants; food engineering; Technology and Engineering;

   Sammanfattning : This master's thesis investigated the potential of algae raw materials, specifically k-carrageenan and to a lesser extent alginate, as film-forming ingredients for the development of a novel edible packaging solutions. The project involved the testing and characterisation of several active ingredients of algal and plant origins both as extracts and as ingredients in films. LÄS MER

4. 3. Mercury accumulation in lake sediments on different time scales – the influence of algal primary production

   Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Författare :Anne Rebotzke; [2023]
   Nyckelord :mercury; lake sediment; primary productivity; algal scavenging; biogenic silica; diatom proxy; chlorophyll-a; organic matter;

   Sammanfattning : The aim of this work is to test the proposed approach of algal scavenging as a driver of sediment mercury (Hg) on different time scales and to gain a better understanding of the mechanisms of Hg accumulation in lake sediments. A 3000-year sediment record from Nylandssjön in northern Sweden was analysed for this purpose, as well as a 20-year sediment record from the seasonal sediment traps of this lake. LÄS MER

5. 4. A field-based estimation of eagle predation and scavenging on reindeer calves : towards mitigating human-wildlife conflicts

   Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

   Författare :Aemilius Johannes Van Der Meiden; [2023]
   Nyckelord :aquila chrysaetos; haliaeetus albicilla; rangifer tarandus; predation; repelling; human-wildlife conflict;

   Sammanfattning : Eagle predation on semi-domesticated reindeer (Rangifer tarandus) calves, both golden (Aquila chrysaetos) and white-tailed eagle (Haliaeetus albicilla) is a well-known issue in Sweden. However, there is a knowledge gap regarding the balance between scavenging and hunting and the role that each of the eagle species has in this issue. LÄS MER

7. 5. Wolverine Scavenging Behaviour : At their southern range in Sweden

   Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Författare :Camille gautier; [2023]
   Nyckelord :Gulo gulo; scavenger; wolverine; adaptative management; Sweden.;

   Sammanfattning : Over the past decades, wolverines in Sweden have made a recovery from near extinction to recolonization large part of their historic range. Effective conservation of large carnivores, which inhabit extensive territories, necessitates adaptative management that considers the diverse ecological and societal factors spanning their entire range. LÄS MER