Sökning: "populationstäthet"
Visar resultat 1 - 5 av 9 uppsatser innehållade ordet populationstäthet.
1. Rörelsemönster hos varg i Skandinavien
Kandidat-uppsats, SLU/Dept. of EcologySammanfattning : Predators have an important role in ecosystems due to their regulating effect on lower trophic levels, but their presence provokes a lot of different opinions and a great deal of interest about their behaviors and movements. It has been observed that predators’ movement patterns and activity patterns can be affected by e.g., human impact (e. LÄS MER
2. Restaureringens effekt på öringpopulationen
Kandidat-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : Until the 1970s, rivers in Sweden were used for timber floating. In order for the floating to be as efficient as possible, with a minimum of timber getting stuck, many rivers were cleared. Large rocks and boulders were removed from the main channel and tributaries, backwaters and shallow areas were secluded. LÄS MER
3. Pathogenesis and risk factors of feline infectious peritonitis
Kandidat-uppsats, SLU/Dept. of Biomedical Sciences and Veterinary Public HealthSammanfattning : Feline infectious peritonitis (FIP) is a fatal disease amongst both domesticated and wild felines. Pathogenesis behind FIP is not completely clear, but the consensus states that Feline coronavirus (FCoV) acquires mutations in genes that code for example the Spike (S) protein and 3c (Bank-Wolf et al., 2014; Chang et al., 2012; Vennema, 1999). LÄS MER
4. Effects of supplementary feeding on bark stripping by red deer (Cervus elaphus)
Kandidat-uppsats, Lunds universitet/Examensarbeten i biologiSammanfattning : Barkgnag av kronvilt, effekt av utfodring? Kronvilt (Cervus elaphus) kan orsaka stora skador på Sveriges skogar genom barkgnagning, något som leder till stora ekonomiska förluster då träden drabbas av svampinfektioner, reducerad tillväxt, deformationer m.m. LÄS MER
5. Framgångsfaktorer inom produktutveckling för Namibias landsbygd : - En fältstudie i Namibia
Master-uppsats, KTH/Maskinkonstruktion (Inst.)Sammanfattning : Många av jordens fattigaste människor lever på landsbygden och är beroende av småskaligt jordbruk för sin överlevnad. Förenta nationerna anser att det är en nyckelfaktor att öka produktiviteten hos jordbruken för att minska undernäringen i världen. LÄS MER