Distribution of mangrove vegetation along inundation, phosphorus, and salinity gradients on the Bragança Peninsula in Northern Brazil
| Autor: | José Francisco Berrêdo, Salustiano Vilar Da Costa Neto, Ruben Jose Lara, Ursula Mendoza, Joaquim Carlos Barbosa Queiroz, Cleise Cordeiro da Cruz |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Hydrology
Salinity biology Ecology Inundation Avicennia germinans Oceanografía Hidrología Recursos Hídricos Soil Science Intertidal zone Edaphic Laguncularia racemosa Phosphorus Plant Science biology.organism_classification Ciencias de la Tierra y relacionadas con el Medio Ambiente Amazonia Wetlands Environmental science Mangrove Transect Rhizophora mangle CIENCIAS NATURALES Y EXACTAS |
| Popis: | Background and aims The Bragança Peninsula, in northern Brazil is characterized by macrotides (4 m) and specific edaphic conditions, which determine the local mangrove forest’s development. This study, conducted during the dry season evaluated the spatial patterns of Rhizophora mangle and Avicennia germinans species across an inundation gradient. Methods Along a transect of 700 m, measurements of structure forest, soil moisture, porewater salinity, extractable phosphorus (extr.-P) in sediments, and phosphorus in the leaves (leaf-P) were conducted. Result The A. germinans (100 %) occurred in high intertidal (HI) zone. A. germinans (59 %) and R. mangle (41 %) co-occurred in mid intertidal (MI) zone, while R. mangle (58 %) predominated in low intertidal (LI) zone, followed by A. germinans (37 %) and Laguncularia racemosa (5 %). Covariance analysis (ANCOVA) indicated that salinity and soil moisture means are significantly different between the mangrove forests, but do not correlate with inundation frequency (IF). The means of extr.-P were significantly different in mangrove forests and correlated with IF and leaf-P. Conclusion The inundation frequency, the availability of P in the sediments, phosphorus in the leaves and interstitial salinity are all important factors contributing to the distribution of the mangrove tree species A. germinans and R. mangle on the Bragança Peninsula. Fil: Cruz, Cleise Cordeiro Da. Federal University of Pará. Institute of Geosciences; Brasil Fil: Mendoza, Ursula Neira. Fluminense Federal University. Department of Environmental Geochemistry; Brasil. Universidade Federal Fluminense. Departamento de Geoquímica Ambiental; Brasil Fil: Queiroz, Joaquim Barbosa. Federal University of Pará. Institute for Statistics and Mathematics; Brasil Fil: Berrêdo, José Francisco. Goeldi Museum. Department of Earth Sciences and Ecology; Brasil Fil: Costa Neto, Salustiano Vilar Da . Amapá State Institute for Scientific and Technological Research; Brasil Fil: Lara, Ruben Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina. Zentrum für Marine Tropenökologie; Alemania |
| Databáze: | OpenAIRE |
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