02270naa a2200289 a 450000100080000000500110000800800410001902200140006010000240007424501800009826000090027852013830028765000170167065000240168765000160171165000190172765000170174665000180176365000260178170000180180770000200182570000200184570000230186570000200188870000260190877300460193420962392018-09-28       2018    bl uuuu     u00u1 u    #d  a2175-78601 aBASTOS, M. J. S. M.  aSpatial distribution and associated flora of Alcantarea nahoumii, a vulnerable endemic species to rocky outcrops of the Serra da Jibóia, Bahia, Brazil.h[electronic resource]  c2018  aThe objective of this study was to characterize the spatial distribution pattern at different altitude gradients as well as to investigate the flora associated with A. nahoumii, considered to be endemic and vulnerable. The study was carried out in Serra da Jibóia, Santa Teresinha, Bahia, Brazil. An inventory was conducted of young and adult A. nahoumii specimens along with taxonomic identification and quantification of the associated species. The cover percentage of A. nahoumii, rock slope, organic matter percentage and exposed rock percentage were calculated, as well as the following phytosociological parameters: absolute density, relative density, absolute frequency, relative frequency, and dominance of A. nahoumii. For the spatial distribution, three indices were tested (Morisita, McGuinnes and Payandech). Canonical correspondence analysis was also applied to test the association of the environmental variables with the species in the community. A total of 1,660 individuals were encountered and classified according to taxonomy in 17 families, 25 genera and 28 species. The spatial distribution pattern of the A. nahoumii population is aggregate. The results demonstrate that the population structure of A. nahoumii is stable, but events such as fires and extractive exploitation make the species vulnerable, along with the other species that inhabit the area.  aBiodiversity  aConservation plants  aDispersions  aBiodiversidade  aBromeliaceae  aConservação  aInventário Florestal1 aBASTOS, L. P.1 aSOUZA, E. H. de1 aCOSTA, G. M. da1 aROCHA, M. A. C. da1 aSOUZA, F. V. D.1 aCOSTA, M. A. P. de C.  tRodriguésiagv.69, n.2, p.503-514, 2018.