Search results for "Atlanti"
showing 10 items of 341 documents
Flexibility in otherwise consistent non-breeding movements of a long-distance migratory seabird, the long-tailed skua
2017
Quantifying within- and between-individual variation in animal migration strategies is a first step towards our understanding of the ability of migrants to adjust to changes in the en - vironment. We studied consistency (or, conversely, flexibility) in movement patterns at large (>1000 km) to meso-scales (100−1000 km) during the non-breeding season of the long-tailed skua Stercorarius longicaudus, a long-distance migratory Arctic seabird, using light-based geolocation. We obtained 97 annual tracks of 38 individuals and quantified similarity between routes. Overall, tracks of the same individual were generally within about 200 to 300 km of their previous year’s route, and more similar than t…
Phytochemical and pharmacological properties of essential oils from Cedrus species
2017
Natural products frequently exert pharmacological activities. The present review gives an overview of the ethnobotany, phytochemistry and pharmacology of the Cedrus genus, e.g. cytotoxic, spasmolytic immunomodulatory, antiallergic, anti-inflammatory and analgesic activities. Cancer patients frequently seek remedies from traditional medicinal plants that are believed to exert less side effects than conventional therapy with synthetic drugs. A long-lasting goal of anti-cancer and anti-microbial therapy research is to find compounds with reduced side effects compared to currently approved drugs. In this respect, Cedrus species might be of interest. The essential oil isolated from Cedrus libani…
Nyctiphanes couchii as intermediate host for Rhadinorhynchus sp. (Acanthocephala, Echinorhynchidae) from NW Iberian Peninsula waters
2013
12 páginas, 3 figuras, 3 tablas
A 45-year sub-annual reconstruction of seawater temperature in the Bay of Brest, France, using the shell oxygen isotope composition of the bivalve Gl…
2020
A reconstruction of sea surface temperature (SST) spanning 45 years (1966–2011) was developed from δ18O obtained from the aragonitic shells of Glycymeris glycymeris, collected from the Bay of Brest, France. Bivalve sampling was undertaken monthly between 2014 and 2015 using a dredge. In total, 401 live specimens and 243 articulated paired valves from dead specimens were collected, of which 24 individuals were used to reconstruct SST. Temperatures determined using the palaeotemperature equation of Royer et al. compared well with observed SST during the growing season between 1998 and 2010 (Pearson’s correlation: p = 0.002, r = 0.760). Furthermore, a significant negative correlation was foun…
Decadal climate variability of the North Sea during the last millennium reconstructed from bivalve shells (Arctica islandica)
2014
Uninterrupted, annually resolved paleoclimate records are crucial to contextualize the current global change. Such information is particularly relevant for the Europe realm for which weather and climate projections are still very challenging if not virtually impossible. This study presents the first precisely dated, annually resolved, multiregional Arctica islandica chronologies from the North Sea which cover the time interval ad 1040–2010 and contain important information on supra-regional climatic conditions (sea surface temperature (SST), ocean productivity, wind stress). Shell growth varied periodically on timescales of 3–8, 12–16, 28–36, 50–80, and 120–240 years, possibly indicating a…
Cuban stalagmite suggests relationship between Caribbean precipitation and the Atlantic Multidecadal Oscillation during the past 1.3 ka
2012
Here we present the first high-resolution δ18O record of a stalagmite from western Cuba. The record reflects precipitation variability in the northwestern Caribbean during the last 1.3 ka and exhibits a correlation to the Atlantic Multidecadal Oscillation (AMO). This suggests a relationship between Caribbean rainfall intensity and North Atlantic sea-surface temperature (SST) anomalies. A potential mechanism for this relationship may be the strength of the Thermohaline Circulation (THC). For a weaker THC, lower SSTs in the North Atlantic possibly lead to a southward shift of the Intertropical Convergence Zone and drier conditions in Cuba. Thus, this Cuban stalagmite records drier conditions…
A presença fenícia em Lisboa: novos vestígios descobertos no alto da colina do Castelo de São Jorge
2018
Neste trabalho apresentam-se os primeiros contextos bem caracterizados da fase inicial da ocupação da Idade do Ferro na Colina do Castelo de São Jorge, em Lisboa (Portugal). Escavações arqueológicas realizadas nesta área urbana permitiram, pela primeira vez, detectar uma sequência clara da ocupação da fase Orientalizante da cidade, que se inicia durante o século VII e se prolonga até ao século V a.C. Os vestígios estratigráficos, arquitectónicos e o espólio recolhido, que integra sobretudo ânforas, produções cinzentas, de engobe vermelho, vasos de fabrico manual e cerâmica comum e pintada, são analisados com detalhe, revelando o profundo carácter orientalizante das populações que se instala…
HOLOCENE CLIMATE AS REFLECTED BY A MALACOLOGICAL SEQUENCE AT VERRIERES FRANCE
2008
Though numerous analyses have been made of Holocene pollen sequences, they come from similar environmental contexts, mainly peat deposits. Land snails can provide good palaeoecological and palaeoclimatical data in different drier environmental settings. The Verrieres deposits, located in the Seine Valley, southeast of Paris, provide rich and abundant malacofaunas. We compare the well–defined local biostratigraphy with other mollusc stratigraphies from Burgundy, the closet site to the studied region. Multivariate analysis of the malacofaunas indicates that temperature and moisture did not always vary in parallel during the Holocene. On the other hand, Verrieres malacofaunas reflect the main …
L’Atlante linguistico della Sicilia. Percorsi geolinguistici antichi e nuovi
2018
L'Atlante Linguistico della Sicilia (ALS) si realizza nell’ambito dell’attività di ricerca del Centro di studi filologici e linguistici siciliani e del Dipartimento di Scienze Umanistiche dell’Università di Palermo, con l'obiettivo è quello di documentare, tra il secondo e il terzo millennio, il repertorio linguistico dei siciliani. Esso rappresenta un punto di incontro tra dialettologia tradizionale e sociolinguistica e si articola in due sezioni: etnodialettale e sociovariazionale. L'attività complessiva dell'ALS (prospettiva geo-etnolinguistica e prospettiva geo-sociolinguistica) si riflette nelle oltre 50 pubblicazioni delle collezioni “Materiali e ricerche dell’Atlante linguistico dell…
“Much Ado About Something: Nineteenth-Century American Writers and the Atlantic Cable”
2022
Cet article décrit et analyse les réactions de plusieurs grands auteurs américains (Thoreau, Longfellow, Irving, Melville, Whittier, Whitman et Emerson) au succès en 1858 du premier lien télégraphique transatlantique entre les États-Unis et l’Europe. Ces réponses à cet exploit technologique apparaissaient dans des journaux privés, des lettres, des éditoriaux et des notes marginales; elles étaient parfois incorporées dans des œuvres littéraires. Dans presque tous les cas, les réactions peuvent...