%0 Journal Article %T Distribution of plant communities as a function of the relative insolation of the Czy ¨®wki rocky ridge in the Ojc¨®w National Park %A Stefan Michalik %J Acta Societatis Botanicorum Poloniae %D 1991 %I Polish Botanical Society %R 10.5586/asbp.1991.025 %X Highly significant dependences were found between the distribution of plant communities and the relative insolation on a small rocky ridge with relief and microclimatic conditions varying to a very great degree. The dependences are presented in graphical and numerical forms, and their significance is tested using non-parametric statistics. %K ecological differentiation of plant communities %K microclimate %K relative insolation %K non-parametric statistics %K Ojc¨®w National Park %U http://pbsociety.org.pl/journals/index.php/asbp/article/view/1214