Chapter 1 Volcanic geology of São Miguel Island (Azores Archipelago): introduction

Gaspar, J. L.; Guest, J. E.; Duncan, A. M.; Chester, David K.; Barriga, Fernando J.A.S.

doi:10.1144/m44.1

Cited by 13 publications

(10 citation statements)

References 24 publications

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“…São Miguel (in black in Fig. 1), approximately 750 km² in size, is the largest and most volcanically-active Island (Gaspar et al 2015). Located in the eastern group of the Archipelago (37°54'58''N, -25°51'52''W, Fig.…”

Section: )mentioning

confidence: 99%

“…Floras and keys for the North Atlantic, Tropical Atlantic and Western Mediterranean were, therefore, used (e.g. Schmidt 1931, Taylor 1967, Taylor 1978, Levring 1974, Dixon and Irvine 1977, Lawson and John 1982, Irvine 1983, Gayral and Cosson 1986, Fletcher 1987, Afonso-Carrillo and Sansón 1989, Burrows 1991, Boudouresque et al 1992, Cabioc'h et al 1992, Maggs and Hommersand 1993, Irvine and Chamberlain 1994, Brodie et al 2007, Lloréns et al 2012, Rodríguez-Prieto et al 2013.…”

Section: Design Descriptionmentioning

confidence: 99%

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Marine algal flora of São Miguel Island, Azores

Neto

Moreu

Alquicira

et al. 2021

BDJ

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The macroalgal flora of the Island of São Miguel (eastern group of the Azores Archipelago) has attracted the interest of many researchers in the past, the first publications going back to the nineteenth century. Initial studies were mainly taxonomic, resulting in the publication of a checklist of the Azorean benthic marine algae. Later, the establishment of the University of the Azores on the Island permitted the logistic conditions to develop both temporal studies and long-term research and this resulted in a significant increase on research directed at the benthic marine algae and littoral communities of the Island and consequent publications. Prior to the present paper, the known macroalgal flora of São Miguel Island comprised around 260 species. Despite this richness, a significant amount of the research was never made public, notably Masters and PhD theses encompassing information regarding presence data recorded at littoral and sublittoral levels down to a depth of approximately 40 m around the Island and the many collections made, which resulted in vouchers deposited in the AZB Herbarium Ruy Telles Palhinha and the LSM- Molecular Systematics Laboratory at the Faculty of Sciences and Technology of the University of the Azores. The present publication lists the macroalgal taxonomic records, together with information on their ecology and occurrence around São Miguel Island, improving the knowledge of the Azorean macroalgal flora at local and regional scales. A total of 12,781 specimens (including some identified only to genus) belonging to 431 taxa of macroalgae are registered, comprising 284 Rhodophyta, 59 Chlorophyta and 88 Ochrophyta (Phaeophyceae). Of these, 323 were identified to species level (212 Rhodophyta, 48 Chlorophyta and 63 Ochrophyta), of which 61 are new records for the Island (42 Rhodophyta, 9 Chlorophyta and 10 Ochrophyta), one an Azorean endemic (Predaea feldmannii subsp. azorica Gabriel), five are Macaronesian endemisms (the red algae Botryocladia macaronesica Afonso-Carrillo, Sobrino, Tittley & Neto, Laurencia viridis Gil-Rodríguez & Haroun, Millerella tinerfensis (Seoane-Camba) S.M.Boo & J.M.Rico, Phyllophora gelidioides P.Crouan & H.Crouan ex Karsakoff and the green alga Codium elisabethiae O.C.Schmidt), 19 are introduced species (15 Rhodophyta, two Chlorophyta and two Ochrophyta) and 32 are of uncertain status (21 Rhodophyta, five Chlorophyta and six Ochrophyta).

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Section: )mentioning

confidence: 99%

Section: Design Descriptionmentioning

confidence: 99%

Marine algal flora of São Miguel Island, Azores

Neto

Moreu

Alquicira

et al. 2021

BDJ

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“… Hernández et al 2017 , Raposeiro et al 2017 , Vázquez-Loureiro et al 2019 ), the best paleoecological archives available in the Azores. Due to the existence of active volcanoes, São Miguel Island is particularly rich in hydrothermal vent fields ( Gaspar et al 2015 ). Biological communities of wetlands located close to these hydrothermal sites are influenced by higher temperatures and CO 2 -rich mineral waters.…”

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confidence: 99%

Distribution of testate amoebae in bryophyte communities in São Miguel Island (Azores Archipelago)

Souto¹,

Gonçalves²,

Pontevedra-Pombal³

et al. 2021

BDJ

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Testate amoebae are a polyphyletic group of protists living preferentially in soils, freshwaters and wetlands. These Protozoa have a worldwide distribution, but their presence and diversity in the Azores (a remote oceanic archipelago) is poorly known, with only twelve taxa recorded so far. The published information reflects occasional collections from sporadic field visits from naturalists to São Miguel Island, mainly in the nineteenth century. To overcome this limitation, a standardised survey was carried out on the Island, sampling different types of habitats from several localities to provide the distribution and information on species ecology of testate amoebae. In this study, 43 species of testate amoebae were recorded (within a total of 499 occurrences), belonging to two orders of Protista (26 Arcellinida and 17 Euglyphida). The most frequently occurring testate amoebae were Euglypha strigosa, Trinema lineare, Euglypha rotunda, Assulina muscorum and Cyclopyxis eurystoma. The most diverse genus was Euglypha (six species). A total of 38 species are new records for the Azores Archipelago. These data help to improve knowledge of the geographical distribution of testate amoebae in the northern hemisphere and their diversity in the Azores Archipelago.

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“…The Azores Archipelago is a group of nine oceanic volcanic islands located in the North Atlantic Ocean. Due to its particular geodynamic setting resulting from a triple plate junction, the archipelago is subjected to frequent volcanic and seismic activity (Gaspar et al., 2015). Over time it produced a wealth of volcanic rocks, archiving geomagnetic field variations.…”

Section: Introductionmentioning

confidence: 99%

Full‐Vector Paleosecular Variation Curve for the Azores: Enabling Reliable Paleomagnetic Dating for the Past 2 kyr

2021

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• New paleomagnetic data from Pico Island, in the mid-North Atlantic region • Data reveals an inclination low with minimum values of 32° from 900-1560 AD • We present the first full-vector paleosecular variation curve for the Azores covering the past 2 kyr, suitable for paleomagnetic dating Accepted Article This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as

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Chapter 1 Volcanic geology of São Miguel Island (Azores Archipelago): introduction

Cited by 13 publications

References 24 publications

Marine algal flora of São Miguel Island, Azores

Marine algal flora of São Miguel Island, Azores

Distribution of testate amoebae in bryophyte communities in São Miguel Island (Azores Archipelago)

Full‐Vector Paleosecular Variation Curve for the Azores: Enabling Reliable Paleomagnetic Dating for the Past 2 kyr

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