03245naa a2200577 a 450000100080000000500110000800800410001902400550006010000260011524501010014126000090024252015570025165000220180865000120183065000220184265000170186465000190188165000260190065000180192665000160194465000120196065000220197265000280199465000160202265000270203865000160206565300180208165300230209965300220212265300280214465300240217265300250219665300260222165300240224765300210227165300260229265300220231865300220234065300200236265300210238265300310240365300100243465300210244470000190246570000250248470000250250970000210253470000260255570000180258177300680259921588872023-11-29       2021    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1016/j.jenvman.2020.1118982DOI1 aOLIVEIRA, E. K. B. de  aCompetition indices after reduced impact logging in the Brazilian Amazon.h[electronic resource]  c2021  aCompetition for resources can affect growth and increase mortality in forest stands. The effects of this process are little known, especially in areas subjected to forest management which show distinct growth dynamics when compared to unmanaged natural areas. This study aimed to estimate, evaluate and select the best fit competition indices (CI) for individual trees in a managed forest in the eastern Amazon. The data used originated from 18 permanent plots of 1 ha each, which were monitored for 12 years after Reduced Impact Logging (RIL). For the competition analysis, 23 indices were tested. CIs were evaluated based on graphical analyses and linear correlation coefficients(r)between each index and variables, basal area growth AG, probability of mortality(Pm), and post-logging period (PLP). In addition, the partial F-test was applied to verify how well the calculated CIs explain the variations observed in AGandP(m). The distance-independent index for BAL (Basal Area Larger) performed the best. For the distance-dependent and semi-independent indices, the best interactions with the variables tested occurred in radii of 15 and 20 m away from the object tree. The largest trees presented higher values of AG. While P(m) was similar among the three tree classes, larger trees had a slightly higher P(m)due to thier low density of individuals. The results obtained in this study may help to include CIs in growth and production models at the individual tree level in tropical rainforests, especially in those managed in the Brazilian Amazon.  aForest management  aLogging  aPlant competition  aPlant growth  aTree mortality  aTropical rain forests  aTropical wood  aÁrea Basal  aÁrvore  aÁrvore Florestal  aCompetição Biológica  aCrescimento  aExploração Florestal  aMortalidade  aAmazon forest  aAmazônia Oriental  aBasal area growth  aBosque tropical húmedo  aCKBV Florestal Ltda  aCompetición vegetal  aCrecimiento de planta  aCrescimento vegetal  aEastern Amazonia  aExplotación forestal  aFazenda Rio Capim  aForest harvesting  aMadera tropical  aManejo florestal  aMortalidad de los árboles  aPará  aParagominas (PA)1 aREZENDE, A. V.1 aFREITAS, L. J. M. de1 aMURTA JÚNIOR, L. S.1 aCASTRO, R. V. O.1 aOLIVEIRA, M. V. N. d'1 aBARROS, Q. S.  tJournal of Environmental Managementgv. 281, 111898, Mar. 2021.