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Registros recuperados: 13 | |
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Toucanne, Samuel; Zaragosi, S.; Bourillet, Jean-francois; Gibbard, P. L.; Eynaud, F.; Giraudeau, J.; Turon, J. L.; Cremer, M.; Cortijo, E.; Martinez, P.; Rossignol, L.. |
The correlation of continental sedimentary records with the marine isotope stratigraphy is a challenge of central importance in Quaternary stratigraphy, particularly in Western Europe where long records of glaciation on land areas are particularly rare. Here we demonstrate for the first time the interrelationship of events during the last 1.2 Ma in an ocean-sediment core from the Bay of Biscay (NE Atlantic), SW of the Channel. The identification of discharge variations from tributary river systems to the 'Fleuve Manche' palaeoriver during glacio-eustatic sea-level lowstands demonstrates the correlation of the marine sediment stratigraphy to the expansion and recession of the European ice-sheets. The amplitude and chronology of European ice-sheet... |
Tipo: Text |
Palavras-chave: Middle pleistocene transition; Ice sheet dynamics; Sea level; Climate change; North Atlantic; English channel; Heinrich events; Fleuve manche; Deep; Origin. |
Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6956.pdf |
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Schnettler,Berta; Ruiz,Danilo; Sepúlveda,Oriana; Sepúlveda,José; Denegri,Marianela. |
Considering the increase in imports of forestry, farming and livestock products to Chile, the existence of different consumer segments was evaluated according to the relative importance of origin in decisions to purchase rice in Talca and Temuco in central-southern Chile. With this purpose, a direct survey was administered to 800 consumers, 400 in Talca (Maule Region) and 400 in Temuco (Araucania Region). Using a conjoint analysis and hierarchical clustering, five market segments were distinguished. The largest group (35.4%) gave great importance to the origin of the rice. The second largest group (25.1%) gave greater relevance to the packaging. For the third and fourth largest groups (15.4 and 12.5%, respectively), the cost of the product was the most... |
Tipo: Journal article |
Palavras-chave: Importation; Market segmentation; Origin; Oryza sativa; Rice. |
Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000200008 |
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Westaway, J.; Quintao, V.; Jesus Marca, S. de. |
Timor-Leste is one of the world’s newest nations, but the island of Timor has a long history of human habitation and land use which has played a significant role in shaping the 15 current vegetation and flora. Movement of people, plants and materials has seen the introduction of hundreds of plants to Timor from foreign lands, many of which have established naturalised populations, with some exerting detrimental impacts on Timorese agriculture, the environment and livelihoods. Plant health surveys conducted by Timorese and Australian biosecurity agencies have enabled compilation of an inventory of more than 20 500 naturalised and pest plant species based largely on recent field collections (now lodged in herbaria) supplemented by observational and... |
Tipo: Article / Letter to the editor |
Palavras-chave: Timor-Leste; Naturalised; Weeds; Introduced; Flora; Origin. |
Ano: 2018 |
URL: http://www.repository.naturalis.nl/record/644611 |
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Luque, J.. |
A new raninoidian crab, Bellcarcinus aptiensis gen. nov., sp. nov., is described from the upper Aptian of Colombia. The new genus displays a combination of traits seen among some ancient species within the Necrocarcinidae and Orithopsidae, obscuring its family placement. This taxon represents the sixth known genus of pre-Albian raninoidians worldwide, and the fourth known from Colombia, in addition to Joeranina, Planocarcinus and Colombicarcinus. Bellcarcinus gen. nov., together with other Early Cretaceous finds from Colombia and Brazil, represents early stocks of stem-group frog crabs, which indicate that tropical South America might have played an important role in the early radiation of the group. Palabras clave – Aptiano, nuevo taxón, Neotrópico,... |
Tipo: Article / Letter to the editor |
Palavras-chave: Aptian; New taxon; Neotropics; Origin; Raninoidia; 42.74; 38.22. |
Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/523862 |
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Nordhagen, J.R.; Heuch, P.A.; Schram, T.A.. |
Salmon lice Lepeophtheirus salmonis (Krøyer, 1837) from farmed Atlantic salmon have been implicated in the drastic sea trout and salmon stock declines found in Ireland and Norway. Can salmon lice from farmed and wild fish be distinguished? The hypothesis has been advanced that the treatment of salmon infested with salmon lice with organophosphate pesticides has resulted in the evolution of early maturing, smaller female lice, which are favoured because they have the chance to reproduce before treatment. Salmon lice on wild fish have been reported to be larger and have more eggs in their egg strings (sacks) than lice on farmed fish. The question is whether the size differences between the lice are genetically fixed or an expression of phenotypic plasticity.... |
Tipo: Article / Letter to the editor |
Palavras-chave: Salmon lice; Origin; Size; Phenotypic plasticity. |
Ano: 2000 |
URL: http://www.repository.naturalis.nl/record/534287 |
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Registros recuperados: 13 | |
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