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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2016
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| Online Access: | https://www.redalyc.org/articulo.oa?id=32746362025 |
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Table of Contents:
- Flood regime and water table determines tree distribution in a forest-savanna gradient in the Brazilian Pantanal WALNIR G. FERREIRA-JÚNIOR CARLOS E.G.R. SCHAEFER CÁTIA N. CUNHA TEMILZE G. DUARTE LUIZ C. CHIEREGATTO FLÁVIA M.S. CARMO Multidisciplinaria (Ciencias Naturales y Exactas) wetlands RPPN SESC Pantanal flood pulse concept Floristic composition This study aimed to recognized the preferential location of species of the tree sinusiae in response to a moisture gradient in Pantanal Matogrossense, Brazil. We established sampling plots of arboreal sinusiae along a soil moisture and fl ood gradient. Piezometers were installed, allowing monthly measurements of water table depth and fl ood height during one year. Detrended Correspondence Analysis, Gradient Direct Analysis, Multi-response Permutation Procedures and Indicator Species Analysis were performed to evaluate the effect of moisture gradient on tree distribution. The annual variation of water table is shallower and similar in Seasonally Flooded Forest and Termite Savanna, with increasing depths in Open Savanna, Savanna Forestand Dry Forest. Circa 64% of the species were characterized as having a preferential location in “terrestrial habitats normally not subjected to inundation”, while 8% preferentially occur in “wet habitats”. Lowest tree richness in fl ood-affected vegetation types is related to both present-day high climatic seasonality and Late Pleistocene dry paleoclimates in the Pantanal wetland. The tree distribution across different formations in the Pantanal shows a direct relationship with soil moisture gradient. 2016 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32746362025 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.1 Vol.88