Sökning: "reindeer density"
Visar resultat 1 - 5 av 20 uppsatser innehållade orden reindeer density.
1. Geographical expansion rate of a brown bear population in Fennoscandia and the factors explaining the directional variations
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : The brown bears, Ursus arctos L., in the Scandinavian peninsula were distributed in almost all counties before aimed reduction during the 1700-1900s (Swenson et al. 1995). From 1981-2013 the population increased more than five times (Chapron et al. LÄS MER
2. How do forest characteristics relate to brown bear (Ursus arctos) density? : focusing on basal area, age, height, and field layer
Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental StudiesSammanfattning : Brown bear (Ursus arctos) is one of our most common large carnivores. The historic population in Sweden has been reduced due to conflicts with humans. The diet of the brown bear varies with the season and location. LÄS MER
3. Hjortdjurs (Cervidae) nyttjande av och beteende vid saltstensplatser i norska fjällen
Kandidat-uppsats, SLU/Dept. of Animal Environment and HealthSammanfattning : Saltlicks are a common management practice for both wildlife and farm animals. In the Norwegian mountain areas these are typically intended for sheep on summer pasture but are used frequently by wildlife such as deer and reindeer. In 2016 the first European case of chronic wasting disease (CWD) was found in reindeer in Nordfjella, Norway. LÄS MER
4. Sociala beteenden och rangordning mellan renkalvar i hägn (Rangifer tarandus tarandus)
Kandidat-uppsats, SLU/Dept. of Animal Nutrition and ManagementSammanfattning : Sociala strukturer och rangordning mellan hjortdjur är fördelaktigt för att minska konkurrens inom en flock vid måttligt begränsade resurser. Vid ökad djurtäthet exempelvis i ett hägn där djuren går mer samlade, blir tillgången till resurser mer begränsad. LÄS MER
5. Sekundära metaboliter hos Betula nana ssp. nana : effekter av betestryck och näringstillgång
Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskapSammanfattning : 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