Listar GI-GRICA - Artigos por título
Mostrando ítems 10-29 de 49
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Climate Change Facilitated the Early Colonization of the Azores Archipelago During Medieval Times
(National Academy of Sciences of the United States of America, 2021-08-27)[Abstract] Humans have made such dramatic and permanent changes to Earth's landscapes that much of it is now substantially and irreversibly altered from its preanthropogenic state. Remote islands, until recently isolated ... -
Climate, catchment runoff and limnological drivers of carbon and oxygen isotope composition of diatom frustules from the central Andean Altiplano during the Lateglacial and Early Holocene
(Elsevier, 2013)Diatom-based carbon and oxygen isotope analyses (δ13Cdiatom and δ18Odiatom) were performed on diatom-rich laminated sediments of Lake Chungará (Andean Altiplano, northern Chile) deposited during the Lateglacial and Early ... -
Climatic and lacustrine morphometric controls of diatom paleoproductivity in a tropical Andean lake
(Elsevier, 2015-12)The coupling of lake dynamics with catchment biogeochemistry is considered the key element controlling primary production in mountain lakes at time scales of a few decades to millennia, yet little is known on the impacts ... -
Climatic Fluctuations in the Hyperarid Core of the Atacama Desert During the Past 215 ka
(Springer Nature, 2019-03-27)[Abstract] Paleoclimate records from the Atacama Desert are rare and mostly discontinuous, mainly recording runoff from the Precordillera to the east, rather than local precipitation. Until now, paleoclimate records have ... -
Comparing surface digitization techniques in palaeontology using visual perceptual metrics and distance computations between 3D meshes
(Wiley, 2021-01-17)[Abstract] The use of surface digitization techniques and methods in palaeontology has increased in the last two decades, mainly due to recent improvements in devices and software. However, many digitization efforts are ... -
Diatom-inferred ecological responses of an oceanic lake system to volcanism and anthropogenic perturbations since 1290 CE
(Elsevier, 2019-07-29)[Abstract] The impacts of natural- and human-induced processes on lake ecosystems in remote oceanic islands remain to be fully elucidated. These lakes are excellent candidates to analyze the importance of anthropogenic ... -
Dinámica de los sistemas dunares costeros ante el Cambio Global: la necesidad de una gestión sostenible
(Asociación Española para el Estudio del Cuaternario (AEQUA), 2023-06-20)[Resumen] El desarrollo y evolución de los sistemas arenosos costeros está gobernado por un frágil equilibrio dinámico entre la interacción de múltiples factores ambientales, y por ello estos sistemas naturales son altamente ... -
ENSO and Solar Activity Signals From Oxygen Isotopes in Diatom Silica During Late Glacial-Holocene Transition in Central Andes (18°S)
(Springer, 2010-02)[Abstract] The late glacial-Holocene transition from the Lago Chungará sedimentary record in northern Chilean Altiplano (18°S) is made up of laminated sediments composed of light-white and dark-green pluriannual couplets ... -
Evaluation of Cu and Zn Content in Soils and their Interaction with Some Physicochemical Soil Properties
(IOP Publishing, 2019-03-04)[Abstract] The content of metals in soils depends on the combined effect of several factors, which include the properties of the metals themselves and their concentrations in the soil, environmental conditions and soil ... -
Formation and Evolution of Back-Barrier Perched Lakes in Rocky Coasts: An Example of a Holocene System in North-West Spain
(Wiley, 2018-09-22)[Abstract] Coastal back-barrier perched lakes are freshwater bodies that are elevated over sea-level and are not directly subjected to the inflow of seawater. This study provides a detailed reconstruction of the Doniños ... -
Fossil Lagomorpha (Mammalia) of Italy: Systematics and Biochronology
(2020)[Abstract] Revisions performed in the last 15 years added remarkable novelties to the taxonomy and biochronology of Italian fossil lagomorphs. Several new taxa have been erected basing on new materials and on the revision ... -
Holocene Sea Level and Climate Interactions on Wet Dune Slack Evolution in SW Portugal: A Model for Future Scenarios?
(Sage, 2018)[Abstract] We examine the Holocene environmental changes in a wet dune slack of the Portuguese coast, Poço do Barbarroxa de Baixo. Lithology, organic matter, biological proxies and high-resolution chronology provide ... -
Identification of the main driving mechanisms in the evolution of a small coastal wetland (Traba, Galicia, NW Spain) since its origin 5700 cal yr BP
(Elsevier, 2007)This paper examines the interdependence among the different forcing factors in the evolution of the Traba coastal wetland (Galicia, NW Spain) based on lithofacies and diatom analyses of three cores reaching the basement. ... -
Impact of the historical introduction of exotic fishes on the chironomid community of Lake Azul (Azores Islands)
(Elsevier, 2017)Little is known about the effect of top predator introduction in historically fishless communities, especially on remote islands. This issue is important because it might strongly affect climate reconstructions derived from ... -
Importance of the Postcranial Skeleton in Eusuchian Phylogeny: Reassessing the Systematics of Allodaposuchid Crocodylians
(PLOS, 2021-06-09)[Abstract] Our current knowledge on the crocodyliform evolution is strongly biased towards the skull morphology, and the postcranial skeleton is usually neglected in many taxonomic descriptions. However, it is logical to ... -
Improving the Understanding of N Transport in a Rural Catchment Under Atlantic Climate Conditions From the Analysis of the Concentration–Discharge Relationship Derived From a High-Frequency Data Set
(European Geosciences Union, 2023-03-21)[Abstract] Understanding processes controlling stream nutrient dynamics over time is crucial for implementing effective management strategies to prevent water quality degradation. In this respect, the study of the nutrient ... -
Lake-level and salinity reconstruction from diatom analyses in Quillagua formation (late Neogene, Central Andean forearc, northern Chile)
(Elsevier, 1999)A sedimentary and micropaleontological study of the Quillagua Formation provides a detailed paleohydrological reconstruction of the lacustrine system which occupied the present-day hyperarid Quillagua–Llamara fore-arc Basin ... -
Leaf Wax Biomarkers of a High-Mountain Lake Area in Western Iberia—Implications for Environmental Reconstructions
(Frontiers, 2022-11-29)[Abstract] Leaf wax n-alkane biomarkers are widely used to infer past vegetation dynamics and hydroclimate changes. The use of these compounds strongly relies on the characterization of modern plants. However, few studies ... -
Long-Term Hydroclimate Variability in the Sub-Tropical North Atlantic and Anthropogenic Impacts on Lake Ecosystems: A Case Study From Flores Island, the Azores
(Elsevier, 2022-06-01)[Abstract] Human land use and climate change threaten ecosystems and natural resources, particularly on remote islands such as the Azores Archipelago in the North Atlantic. Since the official Portuguese settlement of the ... -
Nitrate and Phosphorus Transport in a Galician River (NW Iberian Peninsula): Insights From Fourteen Years of Monitoring
(Frontiers, 2023-01-13)[Abstract] The long-term development of water quality metrics is critical to estimate the status of water resources and successful catchment management. This study looks at the temporal evolution of nitrate and phosphorus ...