Sökning: "herbivory"

Visar resultat 6 - 10 av 33 uppsatser innehållade ordet herbivory.

1. 6. Sekundära metaboliter hos Betula nana ssp. nana : effekter av betestryck och näringstillgång

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

   Författare :Herman Källå; [2020]
   Nyckelord :;

   Sammanfattning : The ongoing shrubification of the Arctic tundra may in the future have serious consequences for the ecosystem. More trees and shrubs will lead to changes in species composition and may alter diversity, carbon and nutrient balance, and result in a lower albedo. LÄS MER

3. 7. Sekundära metaboliter hos Betula nana ssp. nana : effekter av betestryck och näringstillgång

   Kandidat-uppsats,

   Författare :Herman Källå; [2020]
   Nyckelord :;

   Sammanfattning : The ongoing shrubification of the Arctic tundra may in the future have serious consequences for the ecosystem. More trees and shrubs will lead to changes in species composition and may alter diversity, carbon and nutrient balance, and result in a lower albedo. LÄS MER

4. 8. Spatial and temporal variability in grassland structure associated with different densities of the white rhinoceros (Ceratotherium simum) in a South African savanna

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

   Författare :Emilia Malmström; [2019]
   Nyckelord :white rhinoceros; african savanna; keystone species; herbivory; cascading effects; poaching;

   Sammanfattning : The direct and indirect relationships between species in different trophic levels are referred to as trophic dynamics and are important in maintaining the function of ecosystems. Megaherbivores may have effects both directly and indirectly on other species since their impact may be disproportionately large relative to their population size. LÄS MER

5. 9. The relative importance of beavers (Castor fiber) and browsers on the recruitment of broad-leaved trees in riparian areas

   Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

   Författare :Matilda Karlsson; [2019]
   Nyckelord :beaver; Castor fiber; ungulates; herbivory; broad-leaved; riparian; conservation management;

   Sammanfattning : Managed forest landscapes in Sweden are dominated by boreal coniferous forest and are deficient in broad-leaved trees. Both beavers (Castor fiber) and ungulate browsers prefer broad-leaved trees to conifers, and the interaction between multiple herbivores may have a considerable impact on the recruitment of deciduous trees in riparian areas. LÄS MER

7. 10. Nutrient distribution by mammalian herbivores in Hluhluwe-Imfolozi Park (South Africa)

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

   Författare :Laura van Veenhuisen; [2018]
   Nyckelord :megaherbivores; nutrient distribution; stoichiometry; South Africa; Hluhluwe–Imfolozi Park; African savannah; herbivores; wildlife ecology; dung;

   Sammanfattning : African megaherbivores are ecosystem engineers, which are under threat of extinction caused by, among others, poaching and climate change. Their current rates of loss means that there’s a need to better analyse their impact on the environment, in order to predict the consequences of losing this group. LÄS MER