%0 Journal Article %T Multiple processes at different spatial scales determine beta diversity patterns in a mountainous semi-arid rangeland of Khorassan-Kopet Dagh floristic province, NE Iran %A Pashirzad, Maral %A Ejtehadi, Hamid %A Vaezi, Jamil %A Richard P. Shefferson %J Plant Ecology %@ 1385-0237 %D 2019