Smålommens Gavia stellata häckningsframgång i artens svenska kärnområde

International migration patterns of Red-throated Loons (Gavia stellata) from four breeding populations in Alaska

Identifying post-breeding migration and wintering distributions of migratory birds is important for understanding factors that may drive population dynamics. Red-throated Loons (Gavia stellata) are widely distributed across Alaska and currently have varying population trends, including some populations with recent periods of decline. To investigate population differentiation and the location of...

Mätning Av Intellektuellt Kapital I Den Svenska Banksektorn

Information Om Säkerheten I De Svenska Bankernas Nya Chipkort Handledare: Viiveke Fåk

Lead poisoning in common loons (Gavia immer).

Two emaciated common loons (Gavia immer) were believed to have died of lead poisoning when fragments of fishing lines and lead sinkers were discovered in their stomachs. Later a third emaciated loon, which had only the remnants of fishing line in its stomach, was suspected of being a possible lead-poisoning victim when all other test results were negative. The liver lead levels in the first two...

Steroids from the Stem of Nymphaea Stellata

Three steroids, namely 24-ethyl-5α-cholestan-3-one (1), 5α-stigmast-22-en-3-one (2), stigmast-5, 22-dien-3-one (3) have been isolated from N. stellata. The phytochemical and antimicrobial as well as cytotoxic activities of Nymphaea stellata were investigated in this study. Crude extracts of N. stellata and various column fractions exhibited poor antimicrobial activity against a wide range of Gr...