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Distribution of mangrove vegetation along inundation, phosphorus, and salinity gradients on the Bragança Peninsula in Northern Brazil

  • Cleise Cordeiro Da Cruz
  • Ursula Neira Mendoza
  • Joaquim Barbosa Queiroz
  • José Francisco Berrêdo
  • Salustiano Vilar Da Costa Neto
  • Rubén Jose Lara

Abstract

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.

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Da Cruz C.C., Mendoza U.N., Queiroz J.B., Berrêdo J.F., Da Costa Neto S.V. and Lara R.J. (2013) Distribution of mangrove vegetation along inundation, phosphorus, and salinity gradients on the Bragança Peninsula in Northern Brazil. Plant and Soil 370(1-2): 393-406. 10.1007/s11104-013-1619-y

Details

Datum 01.09.2013
Journal Plant and Soil
Issue 1-2
Volume 370
Seiten 393-406
Open Access Closed Access
Open Access Status Closed Access
Eprints_link https://cris.leibniz-zmt.de/id/eprint/2628
Peer-Reviewed

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