02144nab a2200277 i 4500003000900000005001700009008004100026040001800067072000800085100003200093100002600125100003400151100003400185100003800219245013900257500006000396520103500456650002001491650001601511650003001527650001201557773018901569856008101758942000801839999001901847BR-BrBNA20260525103216.0260525b2020    bl.qr|pooa||| 00| 0 eng |  aBR-BrBNAbeng  aK10  aSilva, Leovandes Soares da   aCosta, Thais Ribeiro   aSalomão, Natália Viveiros  aOtoni, Thiago José Ornelas   aMachado, Evandro Luiz Mendonça   aAfter-fire Variations in Floristic Composition at the Cerrado (Brazilian Savannah) Phytophysiognomies in Curvelo, Minas Gerais, Brazil  aPublicação on-line; 36 ref.; 2 tables; Summary (En)  a

Abstract

This study aimed to evaluate the changes in the floristic composition at the Cerrado (Brazilian Savannah) stricto
sensu and Cerradão (xeromorphic forest) phytophysiognomies. In the first inventory in 2010, 15 soil plots of 20 × 50 m
in the Cerrado stricto sensu (CSS) and 10 soil sample plots of 20 × 50 m in the Cerradão (CD) were separated, and
individual samples with diameter at soil height ≥ 5 cm were measured. The second inventory, conducted in 2015,
used the same criteria. A fire hit both phytophysiognomies after the first inventory. Species loss and a mortality rate
higher than recruitment rate were observed in both phytophysiognomies. Species richness and individual density
have been diversified over time. Floristic changes were more intense in CD, with significant alterations between
mortality and recruitment rates – the species that disappeared were represented by a few individuals; in the CSS,
the changes were not significant.

Keywords: conservation, disturbances, diversity dynamics.  aCONSERVAÇÃO  aDISTÚRBIO  aCOMPOSIÇÃO BOTÂNICA  aCERRADO0 029299347958dRio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994o2025-0457tFloresta e Ambiente (Brazil)x1415-0980  /  ISSN 2179-8087 0nlinegv. 27(3) p. 1-9; (2020)wBR2026001303  uhttps://www.scielo.br/j/floram/a/MyBtJ5BYBNvT3QS5h9WP3dz/?format=pdf&lang=en  cANA  c347866d347866