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Possible effect of patogens on fttness of selected duck species
Langrová, Anna ; Votýpka, Jan (referee) ; Musil, Petr (advisor)
In total, 76 birds, mainly breeding females, were captured in years 2007-2009. Birds were inspected for the presence of avian influenza (AI) viruses and the AI antibodies. They were inspected as well for the presence of bacteria Borrelia burgdorferi s. l. and Anaplasma phagocytophilum and protozoan Leucocytozoon simondi in blood. The feces were examined for the oocysts and eggs of intestinal parasites. AI viruses were found in 4 cases, while over 80% of inspected birds had AI antibodies. Bacteria B. burgdorferi s. l. and A. phagocytophilum were found in 2 and 1 case respectively. Protozoan L. simondi was not found in any blood smear. The oocysts from protozoan genera Eimeria and Tyzzeria and eggs from roundworm genera Capillaria, Amidostomum and Echinuria were observed in feces. Statistical analyses were due to the small size of our data set inconclusive.
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Porcelanite - a rare material of polished stone artefacts
Šrein, Vladimír ; Šťastný, Martin ; Šreinová, B. ; Langrová, Anna ; Kolman, Blahoslav Jan
Contact metamorphism is effected by heat supply at the contacts of rocks with magmatites. This process produces porcelanite, vitrification of sandstones and burning of coal seans, among other things. In detail mineralogical study we determined calcic feldspar and pyroxenes as a major minerals with titanite, calcite, zeolite, analcime and others.
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