Sökning: "Extant species"
Visar resultat 1 - 5 av 8 uppsatser innehållade orden Extant species.
1. Effekt av ivermektin mot Parascaris univalens-infektion hos isländska föl
Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Biomedical Sciences and Veterinary Public HealthSammanfattning : Hästens spolmask, Parascaris spp., är en vanligt förekommande nematod hos unga hästar och föl. Från sex månaders ålder utvecklas immunitet och infektion hos vuxna individer är ovanlig. Eftersom hög parasitbörda kan ge upphov till mycket allvarlig sjukdom avmaskas föl runt om i världen regelbundet. LÄS MER
2. Exploring the physiological variables of oxygen isotope composition in chondrychthyan teeth
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Institutionen för organismbiologi; Uppsala universitet/EvolutionsbiologiSammanfattning : Since the discoveries of vertebrate bioapatite’s ability to record oxygen isotopecomposition of ambient seawater were made (Kolodny, 1983), oxygen isotopes have beenwidely used as a climatic and oceanographic proxy. The δ18OP aquatic vertebrate apatite isa function of the δ18Ow value of the ambient water, yet “vital effects” on the δ18OP compositionhave been reported previously (Venneman et al. LÄS MER
3. The Neurocranium of Anasinopa leakeyi (Hyaenodonta, Mammalia) – a First Insight into Teratodontine Brain Morphology
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : The Hyaenodonta include a wide variety of carnivorous mammals ranging in age from late Palaeocene to middle Miocene. Although they reached a nearly global distribution, little remains of them today. Many of the taxa are based only on teeth and jaw fragments. LÄS MER
4. Palaeoentomological reconstruction of the environment during the Late Quaternary : A comparison between living species in Europe and regionally extinct in British Isles
Magister-uppsats, Umeå universitet/Institutionen för idé- och samhällsstudierSammanfattning : During the Late Quaternary, abrupt climate and cultural changes took place and made alternations to the past landscape. Climatic phenomena such as expand of ice masses,sea level rise, high and low temperatures, migration of humans, decline and increase of forest areas and more changes were the reason of changing the biodiversity of species and the formation of the land. LÄS MER
5. Cell Size Variation in Fossil Coccolithophores (Haptophyta) : A Study of Pliocene Sediments from Northwestern Australia
Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : This report examines the size variations of fossil carbonate-producing haptophyte microalgae, coccolithophores, using sediments deposited during the Pliocene. The sediments were collected by the International Ocean Discovery Program (IODP) in 2015, off the coast of NW Australia (Gallagher et al., 2017). LÄS MER