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Demographic analysis of the blue shark, Prionace glauca, in the North Atlantic Ocean. Research advances in population dynamics of Orchidaceae. Graphic analysis of spatio-temporal effect for vegetation disturbance caused by coal mining：a case of Datong Coal Mine Area Phylogenetic Relationship of Genus Kumanoa(Batrachospermales,Rhodophyta) Based on Chloroplast UPA Genes A new monoterpenoid indole alkaloid from Winchia calophylla