نتایج جستجو برای: rare plant

تعداد نتایج: 631143  

Amir Hossein Bagherieh Bahram Rezai, Esmaeil Jorjani,

Different samples have been prepared from different products in Chadormalu iron ore concentrator plant: Low intensity magnetite separators concentrate (magnetite concentrate), reverse flotation tail (final hematite concentrate), flotation concentrate (apatite concentrate), final tail (L.I.M.S. tail + reverse flotation concentrate+ apatite flotation tail). The samples were used for rare eart...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Mohamed Ali Ibrahim MinKyun Na Joonseok Oh Raymond F Schinazi Tami R McBrayer Tony Whitaker Robert J Doerksen David J Newman Louis G Zachos Mark T Hamann

One in five of the world's plant species is threatened with extinction according to the 2010 first global analysis of extinction risk. Tilman et al. predicted a massive ecological change to terrestrial plants within the next 50-100 y, accompanied by an increase in the number of global plant species facing extinction [Tilman D, et al. (2001) Proc Natl Acad Sci USA 98(10):5433-5440]. Most of the ...

2014
Jana Májeková Dominik Roman Letz Michal Slezák Marica Zaliberová Richard Hrivnák

The paper presents data on the occurrence and secondary spreading of rare and threatened vascular plant species in railway habitats of Slovakia. We recorded 17 threatened vascular plant species and other 9 species that we considered to be rare in Slovakia. They grew at railway stations, mainly directly in the rail yard and also at the platforms or other similar facilities. Records of further 39...

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