Flooding regime and tree regeneration in two forest areas in the upper Paraná River floodplain
We studied two forest fragments (RF – forest remnant, and FL – forest that was 57 years old) in the upper Paraná River floodplain to test the influence of flooding regime on the structure and composition of tree regeneration. We conducted the survey with trees grouped in two size classes: class I, &...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Catarina
2013-09-01
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| Series: | Biotemas |
| Subjects: | |
| Online Access: | http://www.biotemas.ufsc.br/volumes/pdf/volume263/71a82.pdf |
| _version_ | 1819232191779962880 |
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| author | Marcos Paulo da Cruz João Batista Campos |
| author_facet | Marcos Paulo da Cruz João Batista Campos |
| author_sort | Marcos Paulo da Cruz |
| collection | DOAJ |
| description | We studied two forest fragments (RF – forest remnant, and FL – forest that was 57 years old) in the upper Paraná River floodplain to test the influence of flooding regime on the structure and composition of tree regeneration. We conducted the survey with trees grouped in two size classes: class I, < 10 cm tall; and class II, > 10 cm tall and circumference at breast height < 15 cm. The sample areas were 2,400 m2 in each of the forest fragments, which were divided into 24 plots of 10 x 10 m. We also obtained the time of inundation that each plot was subjected to over the previous four years. The number of individuals in each size class was compared between the sample areas with an analysis of variance. In the same manner, the correlation of floristic similarity with DCA and association of species with the time of flooding were tested. We found up to 30 species in both sites, and there was a larger density of plants and more species for class II in both environments. RF had a shorter flooding duration, which is consistent with the predominance of species that were negatively correlated with flooding duration. Conversely, in the FL, there were more species that were positively correlated to a longer duration of flooding. Thus, the differentiated flooding regime between environments generates a heterogeneous environment that contributes to the increase in species diversity, given the fact that this selective force may influence seedling establishment and its transition to larger size classes. |
| first_indexed | 2024-12-23T11:56:56Z |
| format | Article |
| id | doaj.art-9217f7f6d1e546938977d78a8cb6ed04 |
| institution | Directory Open Access Journal |
| issn | 0103-1643 |
| language | English |
| last_indexed | 2024-12-23T11:56:56Z |
| publishDate | 2013-09-01 |
| publisher | Universidade Federal de Santa Catarina |
| record_format | Article |
| series | Biotemas |
| spelling | doaj.art-9217f7f6d1e546938977d78a8cb6ed042022-12-21T17:48:03ZengUniversidade Federal de Santa CatarinaBiotemas0103-16432013-09-012637182Flooding regime and tree regeneration in two forest areas in the upper Paraná River floodplainMarcos Paulo da CruzJoão Batista CamposWe studied two forest fragments (RF – forest remnant, and FL – forest that was 57 years old) in the upper Paraná River floodplain to test the influence of flooding regime on the structure and composition of tree regeneration. We conducted the survey with trees grouped in two size classes: class I, < 10 cm tall; and class II, > 10 cm tall and circumference at breast height < 15 cm. The sample areas were 2,400 m2 in each of the forest fragments, which were divided into 24 plots of 10 x 10 m. We also obtained the time of inundation that each plot was subjected to over the previous four years. The number of individuals in each size class was compared between the sample areas with an analysis of variance. In the same manner, the correlation of floristic similarity with DCA and association of species with the time of flooding were tested. We found up to 30 species in both sites, and there was a larger density of plants and more species for class II in both environments. RF had a shorter flooding duration, which is consistent with the predominance of species that were negatively correlated with flooding duration. Conversely, in the FL, there were more species that were positively correlated to a longer duration of flooding. Thus, the differentiated flooding regime between environments generates a heterogeneous environment that contributes to the increase in species diversity, given the fact that this selective force may influence seedling establishment and its transition to larger size classes.http://www.biotemas.ufsc.br/volumes/pdf/volume263/71a82.pdf Community structureElevationRiparian forestsSize classes |
| spellingShingle | Marcos Paulo da Cruz João Batista Campos Flooding regime and tree regeneration in two forest areas in the upper Paraná River floodplain Biotemas Community structure Elevation Riparian forests Size classes |
| title | Flooding regime and tree regeneration in two forest areas in the upper Paraná River floodplain |
| title_full | Flooding regime and tree regeneration in two forest areas in the upper Paraná River floodplain |
| title_fullStr | Flooding regime and tree regeneration in two forest areas in the upper Paraná River floodplain |
| title_full_unstemmed | Flooding regime and tree regeneration in two forest areas in the upper Paraná River floodplain |
| title_short | Flooding regime and tree regeneration in two forest areas in the upper Paraná River floodplain |
| title_sort | flooding regime and tree regeneration in two forest areas in the upper parana river floodplain |
| topic | Community structure Elevation Riparian forests Size classes |
| url | http://www.biotemas.ufsc.br/volumes/pdf/volume263/71a82.pdf |
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