3 research outputs found

    Znaczenie wysokorozdzielczych wielowska藕nikowych (multi-proxy) bada艅 paleoekologicznych dla geografii historycznej i historii gospodarczej

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    The article presents the importance of palaeoecology for the study of economic history, historical geography and environmental history. The text introduces the methodological possibilities of palaeoecology. We pay attention to the unused potential of high resolution palaeoecology. By using natural archives (sediments of lakes and peatlands), we are able to trace the history of changes in nature. We can reconstruct history and better understand the changes in Poland鈥檚 ecosystems and its economic development.Artyku艂 prezentuje znaczenie paleoekologii dla bada艅 historii gospodarczej, geografii historycznej i historii 艣rodowiskowej. Praca przybli偶a mo偶liwo艣ci metodyczne paleoekologii. Zwracamy uwag臋 na niewykorzystany dot膮d potencja艂 wysokorozdzielczej paleoekologii. Wykorzystuj膮c naturalne archiwa (osady jezior i torfowisk), jeste艣my w stanie prze艣ledzi膰 histori臋 przemian przyrody, mo偶emy zrekonstruowa膰 histori臋 i lepiej zrozumie膰 zmiany ekosystem贸w Polski oraz jej rozw贸j ekonomiczny

    The importance of high-resolution multi-proxy paleoecological research for historical geography and economic history

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    Artyku艂 prezentuje znaczenie paleoekologii dla bada艅 historii gospodarczej, geografii historycznej i historii 艣rodowiskowej. Praca przybli偶a mo偶liwo艣ci metodyczne paleoekologii. Zwracamy uwag臋 na niewykorzystany dot膮d potencja艂 wysokorozdzielczej paleoekologii. Wykorzystuj膮c naturalne archiwa (osady jezior i torfowisk), jeste艣my w stanie prze艣ledzi膰 histori臋 przemian przyrody, mo偶emy zrekonstruowa膰 histori臋 i lepiej zrozumie膰 zmiany ekosystem贸w Polski oraz jej rozw贸j ekonomicznyThe article presents the importanceof palaeoecology for the study of economic history, historical geography and environmental history. The text introduces the methodological possibilities of palaeoecology. We pay attention to the unused potential of high resolution palaeoecol-ogy. By using natural archives (sediments of lakes and peatlands), we are able to trace the history of changes in nature. We can reconstruct history and better understand the changes in Poland鈥檚 ecosys-tems and its economic development

    Homeostasis of the Intestinal Mucosa in Healthy Horses—Correlation between the Fecal Microbiome, Secretory Immunoglobulin A and Fecal Egg Count

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    The defensive function of the intestinal mucosa depends both on the ability to secrete immunoglobulin A and communication with the mucus microbiome. In horses, the functioning of this system is also influenced by the presence of nematode eggs. Feces collected from healthy horses were examined to determine the fecal egg count, immunoglobulin A level (ELISA), microbiome composition (Next-Generation Sequencing, NGS, V3–V4 and V7–V9 hypervariable regions of the 16S rRNA gene analysis and short-chain fatty acid (SCFA) production ((high-performance liquid chromatography, HPLC). In the taxonomic analysis within the phylum, the following order of dominance was found: Firmicutes, Bacteroidota, Verrucomicrobiota and Fibrobacterota. The coefficient of phylogenetic diversity of the microbiome positively correlated with both secretory immunoglobulin A (SIgA) [μg/g of feces] (p = 0.0354, r = 0.61) and SIgA [μg/mg of fecal protein] (p = 0.0382, r = 0.6) and with the number of Cyathostomum eggs (p = 0.0023, r = 0.79). Important components of the key microbiome in horses, such as phylum Proteobacteria and species Ruminococcus flavefaciens, were positively correlated with the fecal SIgA (p < 0.05). All the obtained results indicate the existence of significant relationships between the host response (SIgA production) and composition and SCFA production in the microbiome as well as the presence of small strongyles in the digestive tract of horses
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