English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/144265
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Vegetation and landscape dynamics under natural and anthropogenic forcing on the Azores Islands: A 700-year pollen record from the São Miguel Island

AuthorsRull, Valentí ; Lara, A.; Rubio de Ingles, Maria Jesus; Giralt, Santiago ; Gonçalves, V.; Raposeiro, P. M.; Hernández, Armand ; Sánchez-López, Guiomar ; Vázquez-Loureiro, D.; Bao, Roberto; Masqué, Pere; Sáez, Alberto
Early settlement
Last millennium
Issue Date2017
CitationQuaternary Science Reviews, 159: 155-168 (2017)
AbstractThe Azores archipelago has provided significant clues to the ecological, biogeographic and evolutionary knowledge of oceanic islands. Palaeoecological records are comparatively scarce, but they can provide relevant information on these subjects. We report the palynological reconstruction of the vegetation and landscape dynamics of the São Miguel Island before and after human settlement using the sediments of Lake Azul. The landscape was dominated by dense laurisilvas of Juniperus brevifolia and Morella faya from ca. 1280 CE to the official European establishment (1449 CE). After this date, the original forests were replaced by a complex of Erica azorica/Myrsine africana forests/shrublands and grassy meadows, which remained until ca. 1800 CE. Extractive forestry, cereal cultivation (rye, maize, wheat) and animal husbandry progressed until another extensive deforestation (ca. 1774 CE), followed by the large-scale introduction (1845 CE) of the exotic forest species Cryptomeria japonica and Pinus pinaster, which shaped the present-day landscape. Fire was a significant driver in these vegetation changes. The lake levels experienced a progressive rise during the time interval studied, reaching a maximum by ca. 1778–1852 CE, followed by a hydrological decline likely due to a combination of climatic and anthropogenic drivers. Our pollen record suggests that São Miguel were already settled by humans by ca. 1287 CE, approximately one century and a half prior to the official historically documented occupation of the archipelago. The results of this study are compared with the few palynological records available from other Azores islands (Pico and Flores). © 2017 Elsevier Ltd
Publisher version (URL)http://dx.doi.org/10.1016/j.quascirev.2017.01.021
Appears in Collections:(Geo3Bcn) Artículos
Files in This Item:
File Description SizeFormat 
Rull_Quaternary_Science_Reviews_159_155_postprint.pdf1,44 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.