Uppsatser om herbivores

20 uppsatser · sida 1 av 2

Förutsättningar för återintroduktion av stora gräsätare i Sverige

Övrigt arbete · SLU

… the question has been raised, wether or not it is needed to re-introduce large herbivores into the wild in order to maintain the biodiversity that is related to the extensive land use.This study has been conducted as a literature review and will focus on the European bison’s …

Naturvårdande skötsel (NS) - blir resultatet som man tänkt sig?

en fältstudie över föryngring, trädslagsfördelning och död ved 14 år efter åtgärd

Examensarbete · SLU

… only six percent. Almost half of (40%) all woody shoots were damaged by herbivores, when investigated. Saplings/sprouts in height of 20-150cm were more often and worse subjected to herbivory. One third of all shoots showed more than fifty percentage damage. Future stand …

Annons

Betesskador på lärkplantor

Kandidatuppsats · SLU

… study was to show how the Hybrid Larch (Larix eurolepis x) are used by large herbivores in terms of grazing and fraying. More specifically I studied how impact on the seedlings was affected by forest stand area, tree height and stem density (stems/ha).The survey was done in …

Vivesholm

djurbenen belyser den gotländska medeltida borgens husdjurshållning samt husgrundernas användningsområden

Kandidatuppsats · Högskolan på Gotland

… from cattle. This means the inhabitants most probably eat meat from smaller herbivores more often than meat from cattle. Pigs have also been consumed at the castle but not in the same extent as sheep/goat and cattle. Hunting as well as fishing hasn’t had a significant role for …

Klimatinducerade fenologiförändringar och dess effekter i näringsväven

Kandidatuppsats · Linköpings universitet

… indicate that, in a food web with three trophiclevels, the densities of herbivores and carnivores drops in response to an increased change ofclimate. The extinction rates of carnivores also increase rapidly in response to an increasedclimate change.

Metodundersökning av tre metoder för kvävemätning i en arktisk äng

Jämförelse mellan mätmetoderna extraktion, inkubation och jonbytesmembran (PRS-sond)

Kandidatuppsats · Umeå universitet

… experiment were set up in northern Finland with the treatments excluding herbivores, warming and fertilization to see how the inorganic nitrogen content in the soil was effected by the treatments. Soil cores were taken and from them a subsample was incubated for 18 days and …

Utfodring i finmaskiga hönät

hästens ättid och skötarens arbetsmiljö

Kandidatuppsats · SLU

Horses are by nature herbivores, specialized on grass, and graze during the main part of the day. The horse has neither changed this basic behaviour nor the function of gastro-intestinal tract, when the horse was domesticated by man. A horse on pasture has an even production of …

Feeding preferences and foraging in Larvae of Manduca sexta and Spodoptera littoralis

a laboratory study based on olfaction

Kandidatuppsats · SLU

… and ecologically sustainable solutions to the problems caused by these herbivores. The aim of this thesis was to study the behavior and the induced feeding preferences in larvae of M. sexta and S. littoralis when reared on certain host plants. The hypothesis was that larvae of …

Samexistens av nötboskap och vilda herbivorer i Kenya

Kandidatuppsats · SLU

Interaktioner mellan vilda herbivorer och nötboskap är väldigt komplexa. Bland nackdelarna väger överföring av sjukdomar tyngst. Uppskattningsvis har cirka 70 % av alla sjukdomar hos boskap (inklusive zoonoser) som uppkommit på senare tid sitt ursprung hos vilda djur. Sjukdomar …

Grödans kontra odlingssystemets effekt på frilevande nematoder

Magisteruppsats · SLU

… a crop effect on the community of free-living nematodes in the pot experiment. Herbivores had a lower abundance in pots with bare fallow in contrast to pots with a crop. This clear result didn’t show in the analysis of the season sampling. It’s possible that bare fallow need a …