Seasonal variation of plant communities and their environments along a topographic gradient in the iberá wetland, ancient Paraná floodplain, Argentina
Recently, wetlands have declined worldwide due mainly to habitat loss by human activities. In order to achieve a better understanding of the impacts that are being generated on the Iberá wetland in northeastern Argentina, the objective of this study is to analyze seasonal variation of the environmen...
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todo:paper_0340269X_v43_n1-2_p53_Corriale2023-10-03T15:25:34Z Seasonal variation of plant communities and their environments along a topographic gradient in the iberá wetland, ancient Paraná floodplain, Argentina Corriale, M.J. Picca, P.I. di Francescantonio, D. Characterization of environments Diversity Floristic composition Hydrometric level Topographic gradient abundance dry matter floodplain floristics hydrometry plant community sand ridge seasonal variation species diversity thematic mapping topography upland region vegetation cover water column wetland zonation Argentina Corrientes Entre Rios Ibera Wetlands Parana [Entre Rios] Recently, wetlands have declined worldwide due mainly to habitat loss by human activities. In order to achieve a better understanding of the impacts that are being generated on the Iberá wetland in northeastern Argentina, the objective of this study is to analyze seasonal variation of the environments present in the sandy ridges areas of this wetland. The different environments were identifi ed and characterized according to their topography, vegetation physiognomy and dominance of species. In addition, the seasonal variation in the vegetation communities occurring in the different environments was analyzed and characterized in terms of fl oristic composition, abundance-cover and attributes. A thematic map of environments was generated and validated through the analysis of abundance-cover of the vegetation. Surveys were conducted seasonally, resulting in a total of 600 plots randomly selected. The percentage of dry matter, bare ground, vegetation-free water surface, vegetation height and depth of the water column were determined where appropriate. Six environments were identified: the upland areas, the temporary ponds, the upper and lower transition zones (between aquatic and terrestrial environments), the low-lying area and the "embalsados" (with aquaticpalustrine species). The environment classification suggests that the topographic gradient and associated edaphic factors would determine the presence of the different communities. The great intra-annual variation in water regime originating from seasonal precipitation in the study area produces a variety of plant communities. The patterns of plant zonation in this wetland are changed from season to season as water levels fluctuate in space and time making the system very susceptible to changes in the hydrometric level. © 2013 Gebrüder Borntraeger, 70176 Stuttgart, Germany. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0340269X_v43_n1-2_p53_Corriale |
| institution |
Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Characterization of environments Diversity Floristic composition Hydrometric level Topographic gradient abundance dry matter floodplain floristics hydrometry plant community sand ridge seasonal variation species diversity thematic mapping topography upland region vegetation cover water column wetland zonation Argentina Corrientes Entre Rios Ibera Wetlands Parana [Entre Rios] |
| spellingShingle |
Characterization of environments Diversity Floristic composition Hydrometric level Topographic gradient abundance dry matter floodplain floristics hydrometry plant community sand ridge seasonal variation species diversity thematic mapping topography upland region vegetation cover water column wetland zonation Argentina Corrientes Entre Rios Ibera Wetlands Parana [Entre Rios] Corriale, M.J. Picca, P.I. di Francescantonio, D. Seasonal variation of plant communities and their environments along a topographic gradient in the iberá wetland, ancient Paraná floodplain, Argentina |
| topic_facet |
Characterization of environments Diversity Floristic composition Hydrometric level Topographic gradient abundance dry matter floodplain floristics hydrometry plant community sand ridge seasonal variation species diversity thematic mapping topography upland region vegetation cover water column wetland zonation Argentina Corrientes Entre Rios Ibera Wetlands Parana [Entre Rios] |
| description |
Recently, wetlands have declined worldwide due mainly to habitat loss by human activities. In order to achieve a better understanding of the impacts that are being generated on the Iberá wetland in northeastern Argentina, the objective of this study is to analyze seasonal variation of the environments present in the sandy ridges areas of this wetland. The different environments were identifi ed and characterized according to their topography, vegetation physiognomy and dominance of species. In addition, the seasonal variation in the vegetation communities occurring in the different environments was analyzed and characterized in terms of fl oristic composition, abundance-cover and attributes. A thematic map of environments was generated and validated through the analysis of abundance-cover of the vegetation. Surveys were conducted seasonally, resulting in a total of 600 plots randomly selected. The percentage of dry matter, bare ground, vegetation-free water surface, vegetation height and depth of the water column were determined where appropriate. Six environments were identified: the upland areas, the temporary ponds, the upper and lower transition zones (between aquatic and terrestrial environments), the low-lying area and the "embalsados" (with aquaticpalustrine species). The environment classification suggests that the topographic gradient and associated edaphic factors would determine the presence of the different communities. The great intra-annual variation in water regime originating from seasonal precipitation in the study area produces a variety of plant communities. The patterns of plant zonation in this wetland are changed from season to season as water levels fluctuate in space and time making the system very susceptible to changes in the hydrometric level. © 2013 Gebrüder Borntraeger, 70176 Stuttgart, Germany. |
| format |
JOUR |
| author |
Corriale, M.J. Picca, P.I. di Francescantonio, D. |
| author_facet |
Corriale, M.J. Picca, P.I. di Francescantonio, D. |
| author_sort |
Corriale, M.J. |
| title |
Seasonal variation of plant communities and their environments along a topographic gradient in the iberá wetland, ancient Paraná floodplain, Argentina |
| title_short |
Seasonal variation of plant communities and their environments along a topographic gradient in the iberá wetland, ancient Paraná floodplain, Argentina |
| title_full |
Seasonal variation of plant communities and their environments along a topographic gradient in the iberá wetland, ancient Paraná floodplain, Argentina |
| title_fullStr |
Seasonal variation of plant communities and their environments along a topographic gradient in the iberá wetland, ancient Paraná floodplain, Argentina |
| title_full_unstemmed |
Seasonal variation of plant communities and their environments along a topographic gradient in the iberá wetland, ancient Paraná floodplain, Argentina |
| title_sort |
seasonal variation of plant communities and their environments along a topographic gradient in the iberá wetland, ancient paraná floodplain, argentina |
| url |
http://hdl.handle.net/20.500.12110/paper_0340269X_v43_n1-2_p53_Corriale |
| work_keys_str_mv |
AT corrialemj seasonalvariationofplantcommunitiesandtheirenvironmentsalongatopographicgradientintheiberawetlandancientparanafloodplainargentina AT piccapi seasonalvariationofplantcommunitiesandtheirenvironmentsalongatopographicgradientintheiberawetlandancientparanafloodplainargentina AT difrancescantoniod seasonalvariationofplantcommunitiesandtheirenvironmentsalongatopographicgradientintheiberawetlandancientparanafloodplainargentina |
| _version_ |
1807316350712938496 |