Effect of Grazing on the Plant Community of a Southern Brazilian Swamp
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 distribu...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal Rural do Rio de Janeiro
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| Series: | Floresta e Ambiente |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000300123&lng=en&tlng=en |
| _version_ | 1817977970275385344 |
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| author | Jaqueline Spellmeier Eduardo Périco Claus Haetinger Elisete Maria Freitas Ana Paula de Borba Morás |
| author_facet | Jaqueline Spellmeier Eduardo Périco Claus Haetinger Elisete Maria Freitas Ana Paula de Borba Morás |
| author_sort | Jaqueline Spellmeier |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-13T22:23:17Z |
| format | Article |
| id | doaj.art-ef3e1316a04449fcad9744a790fafe56 |
| institution | Directory Open Access Journal |
| issn | 2179-8087 |
| language | English |
| last_indexed | 2024-04-13T22:23:17Z |
| publisher | Universidade Federal Rural do Rio de Janeiro |
| record_format | Article |
| series | Floresta e Ambiente |
| spelling | doaj.art-ef3e1316a04449fcad9744a790fafe562022-12-22T02:27:08ZengUniversidade Federal Rural do Rio de JaneiroFloresta e Ambiente2179-808726310.1590/2179-8087.033918S2179-80872019000300123Effect of Grazing on the Plant Community of a Southern Brazilian SwampJaqueline SpellmeierEduardo PéricoClaus HaetingerElisete Maria FreitasAna Paula de Borba MorásABSTRACT 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000300123&lng=en&tlng=endiversity indexesphytosociologywetlands |
| spellingShingle | Jaqueline Spellmeier Eduardo Périco Claus Haetinger Elisete Maria Freitas Ana Paula de Borba Morás Effect of Grazing on the Plant Community of a Southern Brazilian Swamp Floresta e Ambiente diversity indexes phytosociology wetlands |
| title | Effect of Grazing on the Plant Community of a Southern Brazilian Swamp |
| title_full | Effect of Grazing on the Plant Community of a Southern Brazilian Swamp |
| title_fullStr | Effect of Grazing on the Plant Community of a Southern Brazilian Swamp |
| title_full_unstemmed | Effect of Grazing on the Plant Community of a Southern Brazilian Swamp |
| title_short | Effect of Grazing on the Plant Community of a Southern Brazilian Swamp |
| title_sort | effect of grazing on the plant community of a southern brazilian swamp |
| topic | diversity indexes phytosociology wetlands |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000300123&lng=en&tlng=en |
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