Cohen, Marcelo C. L., Filho, Pedro W. M. Souza, Lara, Rubén J., Behling, Hermann and Angulo, Rodolfo J. (2005) A Model of Holocene Mangrove Development and Relative Sea-level Changes on the Bragança Peninsula (Northern Brazil). Wetlands Ecology and Management, 13 (4). pp. 433-443. DOI

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Based on the integration of geological information, the pollen record, radiocarbon data, and modern mangrove distribution, this paper proposes a model of evolutionary development for mangroves on the Brazilian Bragança Peninsula driven by relative sea-level changes from the middle to late Holocene. After a postglacial relative sea-level rise (RSL), the mangrove habitats on the Bragança Peninsula began to develop at about 5100 years BP close to the current RSL, originating in the middle of the peninsula. Between 1800 and 1400 years BP, this littoral area underwent a maximum RSL fall of 1 m below the current one, followed by a gradual RSL rise until 1000 years BP, when the modern RSL was reached. Between 5100 and 1000 years BP, the RSL of the Bragança coastline was probably never higher than 0.6 m above the present level. The first Holocene mangrove forest (5100 years BP) in this region disappeared from the plains due to RSL fall and was replaced by herbaceous vegetation (Cyperaceae and Poaceae).

Document Type: Article
Programme Area: UNSPECIFIED
Research affiliation: Biogeochemistry and Geology
Refereed: Yes
Open Access Journal?: No
ISSN: 0923-4861
Date Deposited: 05 Mar 2020 17:13
Last Modified: 01 Oct 2020 13:01

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