Changes in epigeic spider community in primary succession on a brown-coal dump. Heft 14, 40-50 download PDF DOI: 10.5431/aramit1406 Keywords: Primary succession, spiders, mine dump, diversity, ordination, cluster analysis, Slovakia
A descriptive model of primary succession of spiders on a brown-coal dump is presented. Multivariate methods (cluster analysis and detrended correspondence analysis), and community indexes were applied to evaluate changes in community composition of epigeic spiders. Two different rehabilitation age stages were investigated. The cluster analysis helped to determine a case of horizontal asynchronous succession. The DCA was able to distinguish divergent trends of succession from the initial stage. Successional trends in species replacements were observed. In all aspects of succession there was found to be directional towards a "ruderal steppe" subclimax.