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

Citation data:

Quaternary Science Reviews, ISSN: 0277-3791, Vol: 159, Page: 155-168

Publication Year:
Usage 141
Abstract Views 131
Link-outs 10
Captures 33
Readers 33
Mentions 1
Blog Mentions 1
Social Media 176
Shares, Likes & Comments 173
Tweets 3
Citations 4
Citation Indexes 4
Repository URL:;
Rull, Valenti; Lara, Arantza; Rubio-Ingles, Maria Jesus; Giralt, Santiago; Goncalves, Vitor; Raposeiro, Pedro; Hernandez, Armand; Sanchez-Lopez, Guiomar; Vazquez-Loureiro, David; Bao, Roberto; Masque, Pere; Saez, Alberto Show More Hide
Elsevier BV; Elsevier
Palynology; Palaeoecology; Palaeoclimates; Last millennium; Azores; Early settlement; FUNCTIONAL DIVERSITY; NORTH-ATLANTIC; SETE CIDADES; LAKE; BIOGEOGRAPHY; MACARONESIA; ARCHIPELAGO; SEDIMENTS; CLIMATE; IMPACT; Environmental Science; Agricultural and Biological Sciences; Arts and Humanities; Social Sciences; Earth and Planetary Sciences; Deforestation; Ecology; Lakes; Vegetation; Last millenniums; Forestry; Animalia; Cryptomeria japonica; Erica; Juniperus brevifolia; Morella faya; Pinus pinaster; Secale cereale; Triticum aestivum; Zea mays; Life Sciences
Most Recent Tweet View All Tweets
Most Recent Blog Mention
article description
The 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 Sao Miguel Island before and after human settlement using the sediments of Lake Azul. The landscape was dominated by dense laurisilvas ofJuniperus 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 Sao 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). (C) 2017 Elsevier Ltd. All rights reserved.