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The plant populations are naturally distributed in aggregated, random or uniform spatial patterns. These patterns may vary according to environmental conditions over time. The present study aimed to evaluate the spatio-temporal distribution of five principal species of a cerradao in eastern Mato Grosso to verify if fire and drought events result in changes and to what extent such changes are detectable in the spatial patterns of these populations. The surveys were conducted in an area of cerradao in the Bacaba Municipal Park, Nova Xavantina-MT in February 2002, 2005, 2008, 2010 and 2012 in 50 permanent plots of 10 x 10 m. Hirtella glandulosa showed resilience to disturbances in relation to other species during the studied decade. Tachigali vulgaris and Xylopia aromatica , despite showing changes in density between the years, maintained the same pattern of spatial distribution over time. Changes in population structure and spatial pattern of Roupala montana and Myrcia splendens may indicate sensitivity of these populations to disturbances. Keywords: density; fire; spatial patterns; drought.

Dinâmica da Distribuição Espacial de Populações Arbóreas, ao Longo de uma Década, em Cerradão na Transição Cerrado-Amazônia, Mato Grosso