000			02096nab a2200289 i 4500
003			BR-BrBNA
005			20260402150216.0
008			260402b2019 bl.qr|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aF40
100			_aSpellmeier, Jaqueline
100			_aPérico, Eduardo
100			_aHaetinger, Claus
100			_aFreitas, Elisete Maria
100			_aMorás, Ana Paula de Borba
245			_aEffect of Grazing on the Plant Community of a Southern Brazilian Swamp
500			_aPublicação on-line; 40 ref.; 1 table; 4 illus.; Summary (En)
520			_a ABSTRACT Swamps have high biological diversity and are the largest producers of biomass. However, such ecosystems are threatened by human activities. This study analyzes the plant community structure of two swamp sites, with and without grazing. A total of 200 sample units with 0.25 m2 were distributed every 13 m to determine diversity, the Importance Value Index (IVI), and coverage. Fifty species and 18 families were recorded. Luziola peruviana Juss. ex. JF Gmel had the highest IVI, accounting for 62.57% of the relative coverage in cattle-influenced sites. In the portions without cattle, Commelina diffusa Burm.f. had the highest IVI (24.33). The Shannon and Pielou indexes were 2.18 nats.ind.–1 and 0.56, respectively, decreasing to 1.62 nats.ind.–1 and 0.47 in grazing sites. There was less richness in the cattle grazing area, with a single species accounting for a high percentage of coverage, indicating the possible role of grazing on the plant community structure. Keywords: diversity indexes, phytosociology, wetlands.
650			_aPÂNTANO
650			_aPASTEJO
650			_aECOLOGIA
650			_aVEGETAÇÃO
773	0		_02929 _9347952 _dRio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994 _o2025-0451 _tFloresta e Ambiente (Brazil) _x1415-0980 / ISSN 2179-8087 0nline _gv. 26(3) p. 1-10; (2019) _wBR2026000264
856			_uhttps://www.scielo.br/j/floram/a/HDKdnJcHbWyz6HCKnGqv7St/?format=pdf&lang=en
942			_cANA
999			_c341222 _d341222