A5020027859- Geology and Paleoclimatology Research
- Archaeological and Geological Studies
- Maritime and Coastal Archaeology
- Pleistocene-Era Hominins and Archaeology
- Heavy metals in environment
- Archaeological and Historical Studies
- Archaeology and ancient environmental studies
- Mercury impact and mitigation studies
- Marine Biology and Ecology Research
- Geological and Geophysical Studies Worldwide
- Fish biology, ecology, and behavior
- Crustacean biology and ecology
- Fish Ecology and Management Studies
- Geochemistry and Geologic Mapping
- Medieval Architecture and Archaeology
- Geotechnical Engineering and Soil Mechanics
- Fish Biology and Ecology Studies
- Geological formations and processes
- Radioactivity and Radon Measurements
- Forensic Anthropology and Bioarchaeology Studies
- History and advancements in chemistry
- Science and Science Education
- Coastal and Marine Dynamics
- Tree-ring climate responses
- Marine and fisheries research
University of Lisbon
1995-2024
Universidade do Porto
2021-2024
Universidad de Cantabria
2019-2024
Instituto Politécnico de Lisboa
2023
Centro de Investigação em Biodiversidade e Recursos Genéticos
2017-2023
Universidade Federal do Pará
2022
Direção Geral do Património Cultural
2013-2021
Government of Spain
2021
University of Évora
1994-2019
Universidade Estadual do Piau
2019
The growing global demand for renewable energy sources can be reached using biofuels such as biodiesel, example. most used route to produce biodiesel is the transesterification reaction of oils or fats with short-chain alcohols, generating fatty acid esters (biodiesel) and a very important by-product, glycerol (Gly). Gly widely in different sectors industry, order add value this heterogeneous catalysis becomes relevant tool, whether transform into other chemical products interest even use it...
Abstract Streams in mediterranean‐type climate regions are shaped by predictable seasonal events of flooding and drying over an annual cycle, but also present a strong interannual flow variation. The Guadiana River is one the most important rivers Iberian Peninsula. fish fauna presents 11 native freshwater species, including eight with high conservation status. Several exotic species present, being American centrarchids pumpkinseed largemouth bass. As typical river, has irregular...
Abstract. The Mediterranean region is a climate hot spot, sensitive not only to global warming but also water availability. In this work we document major temperature and precipitation changes in the Iberian Peninsula margin during last 2000 years propose an interplay of North Atlantic internal variability with three atmospheric circulation modes (ACMs), (North Oscillation (NAO), east atlantic (EA) Scandinavia (SCAND)) explain detected variability. We present reconstructions sea surface (SST...
Pesquisas revelam que o conhecimento lexical e sintático na segunda língua influencia a compreensão leitora dos aprendizes. Assim, objetivo deste artigo foi investigar de jovens do ensino médio nas escolas estaduais Sobral por meio testes para avaliar qual tipo teria maior influência em inglesa. Para tal, realizamos quatro tarefas, saber: teste leitora; amplitude vocabulário (VST); profundidade (WAT); um sintático. Os resultados revelaram lexical, tanto quanto profundidade, estatisticamente...
NE Portugal is one of the most isolated and low populated regions Western Europe. Recently, two American crayfish species reached this area: signal Pacifastacus leniusculus coming from Spain red swamp Procambarus clarkii in its northward expansion. The dispersion both was followed throughout last decade river Maçãs (Douro catchment). Our results support hypothesis faster downstream colonisation. mean spread rate for expansion, 2.8 km·yr-1, while upstream 1.7 km·yr-1. Exceptionally, period,...
The existing radiocarbon (14C) dating framework for Lagar Velho is broadly consistent but provides limited constraint on several geoarchaeological complexes (GCs) and does not favour detailed chronological comparisons across all sectors of the site; including stratigraphically disconnected child burial complex in east area broader archaeological sequence central-west area. In this study, we undertake a complementary assessment Rock Shelter using single-grain quartz OSL, TT-OSL combined...
Abstract The archaeological record of the Lagar Velho rock shelter (Lapedo Valley, Leiria, Portugal) bears testimony to several significant Upper Palaeolithic occupations, most notably Lapedo Child burial (LV1) dating from Gravettian. Excavations undertaken at site since 2018 have seen recovery a large quantity coprolites, above all in layer 143 (c. 29 ka cal BP). study these fossilized remains points bearded vulture ( Gypaetus barbatus ) as main coprogenic agent and provides first...
Strontium isotope (87Sr/86Sr) analysis with reference to strontium landscapes (Sr isoscapes) allows reconstructing mobility and migration in archaeology, ecology, forensics. However, despite the vast potential of research involving 87Sr/86Sr particularly Africa, Sr isoscapes remain unavailable for largest parts continent. Here, we measure ratios 778 environmental samples from 24 African countries combine this data published model a bioavailable isoscape sub-Saharan Africa using random forest...
<i>Austropotamobius pallipes<i/> has suffered a considerable reduction in range and abundance over the last two decades. The main hypotheses to explain this situation are : environmental degradation, critical climatic conditions, crayfish plague, though presence of <i>Aphanomyces astaci<i/> as aetiological agent is be confirmed. White-clawed populations now confined few small areas north-eastern part country risk total extinction. Population characteristics presented. Sex ratio balanced...
The chronological framework for Neanderthal occupation and demise across Europe continues to be debated. In particular, there is still uncertainty regarding the nature, timing regional expressions of Middle Upper Palaeolithic transition associated with disappearance Neanderthals broader expansion modern human populations in around 42–40 thousand years ago (ka). geographical distribution also remains difficult evaluate owing practical challenges directly dating fossils at many sites, fact...
ABSTRACT Mediterranean temporary streams show high spatial and temporal heterogeneity. Native fish species are adapted to this natural variability, but the cumulative effect of anthropogenic disturbances may compromise stability persistence assemblages. This study aimed determine if environmental drivers affect response assemblages pressures in identify what type particularly vulnerable disturbance. Data were collected from 22 sites located southern Portuguese between 1996 2012. The pattern...
Palynological investigations on Gravettian coprolites of Abrigo do Lagar Velho (Vale Lapedo, Leiria, Portugal) dated between ca. 30 to 27.3 ka cal BP are presented. The palaeoecological data shows a semi-forested landscape with Pinus, Poaceae, Erica, Artemisia, Juniperus and Quercus as the dominant taxa. A diversity trees, shrubs, herbs is also noticeable, including broad-leaf Mediterranean woody shrubs conifers, xerothermophytes, indicators saline substrates heliophytes such Asteroideae,...
Estuaries are sensitive to changes in global regional sea level, climate-driven variation rainfall and fluvial discharge. In this study, we use source environmentally proxies together with radiocarbon dating examine a 7-m-thick sedimentary record from the Sado estuary accumulated throughout last 3.6 kyr. The lithofacies, geochemistry diatom assemblages sediments between 3570 3240 cal. BP indicate mixture terrestrial marine sources. relative contribution of each varied through time as...
Behavioural interactions between the endangered native fish Saramugo, Anaecypris hispanica, and invasive Bleak, Alburnus alburnusInvasive species have potential to impact through interference competition, which is especially concerning for conservation of valuable endemic ichtyofauna Iberian Peninsula.This study investigated negative effect bleak alburnus on behaviour critically saramugo hispanica.The patterns were analysed under experimental conditions in outdoor tanks observations shelter...