Sökning: "egg numbers"
Visar resultat 1 - 5 av 14 uppsatser innehållade orden egg numbers.
1. FRÅN UTSÄTTNING AV ÖRINGROM TILL ÅRSYNGEL : EFFEKTER AV UTSÄTTNINGSMETODIK OCH INTRASPECIFIKA INTERAKTIONER
Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskapSammanfattning : Egg stocking is a common method of re-establishing brown trout (Salmo trutta) populations, while the outcomes have been shown to give different results depending on variations in methods and locations. More recently, the dispersal of yearlings has been studied, but research on intraspecific interactions after egg stocking and the optimal number of eggs stocked are less studied. LÄS MER
2. Vilken metod är effektivast för fångster av fyrtandad rapsvivel i kål och raps?
Kandidat-uppsats, SLU/Dept. of EcologySammanfattning : Odling av frilandsgrönsaker står inför många utmaningar. För svenska kålodlare har det på senare år uppkommit problem med skadegöraren fyrtandad rapsvivel, Ceutorhynchus pallidactylus (Marsh.) (Coleoptera: Curculionidae). Larverna av C. LÄS MER
3. Searching for the greater Capricorn beetle : a methodological review of training dogs for a conservational purpose
Master-uppsats, SLU/Dept. of Animal Environment and HealthSammanfattning : The Greater Capricorn beetle Cerambyx cerdo is an endangered species both in Sweden (CR) and internationally (VU). The substrate, old Oak, dropped heavily in numbers in Sweden during the 19th century, which left the beetle without suitable habitats. The only remaining population is on Öland, an island on the Swedish east coast. LÄS MER
4. Laid eggs in vain got eaten by a crane? : Investigating habitat selection and activity by Common cranes to consider potential impact on other wetland bird species
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : Wetland species are declining and efforts are being made to protect wetlands and their biodiversity. In Europe, these efforts could be hampered by the recent rise in the Western European Common crane (Grus grus) population. LÄS MER
5. Strongylus vulgaris : samband med äggurskiljning, ålder och bekämpningsåtgärder
Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Biomedical Sciences and Veterinary Public HealthSammanfattning : Strongylus vulgaris, or large strongyles, is the most dangerous of the equine endoparasites. Its larvae can cause lethal intestinal infarctions when they move through the horse’s blood vessels. LÄS MER