Search Results - "Ledru, M"
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A mid-Holocene climate reconstruction for eastern South America
Published in Climate of the past (09-09-2013)“…The mid-Holocene (6000 calibrated years before present) is a key period in palaeoclimatology because incoming summer insolation was lower than during the late…”
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2
The Medieval Climate Anomaly and the Little Ice Age in the eastern Ecuadorian Andes
Published in Climate of the past (05-02-2013)“…To better characterize the climate variability of the last millennium in the high Andes, we analyzed the pollen content of a 1150-yr-old sediment core…”
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3
Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records
Published in Climate of the past (29-02-2016)“…An improved understanding of present-day climate variability and change relies on high-quality data sets from the past 2 millennia. Global efforts to model…”
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Enhanced mercury deposition by Amazonian orographic precipitation: Evidence from high-elevation Holocene records of the Lake Titicaca region (Bolivia)
Published in Palaeogeography, palaeoclimatology, palaeoecology (15-12-2018)“…Very few studies have focused on historical mercury (Hg) deposition in the Southern Hemisphere, especially for the pre-mining period. Therefore, the respective…”
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5
Paleo-environmental change in Amazonian and African rainforest during the LGM
Published in Palaeogeography, palaeoclimatology, palaeoecology (25-09-2006)“…The paper provides new and comparative insight into the ecological history of the two largest continental tropical forest areas during the Last Glacial Maximum…”
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Terrestrial biosphere changes over the last 120 kyr
Published in Climate of the past (01-01-2016)“…A new global synthesis and biomization of long (> 40 kyr) pollen-data records is presented and used with simulations from the HadCM3 and FAMOUS climate models…”
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Pollen-based biome reconstructions for Latin America at 0, 6000 and 18 000 radiocarbon years ago
Published in Climate of the past (01-12-2009)“…The biomisation method is used to reconstruct Latin American vegetation at 6000±500 and 18 000±1000 radiocarbon years before present (14C yr BP) from pollen…”
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Why deep drilling in the Colônia Basin (Brazil)?
Published in Scientific drilling (Hokkaido, Japan) (17-12-2015)“…The Colônia Deep Drilling Project held its first International Continental Scientific Drilling Program (ICDP) workshop in September 2014 at the University of…”
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9
Impacts of human activities on ecosystems during the past 1300 years in Pingnan area of Fujian Province, China
Published in Quaternary international (12-02-2013)“…A high-resolution pollen record obtained from Pingnan County, Fujian province in China, provides new insights into the nature of ecosystem changes and the…”
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10
Environmental records from temperate glacier ice on Nevado Coropuna saddle, southern Peru
Published in Advances in geosciences (13-10-2009)“…We investigated past climate variability and the zonal short and long-range transport of air masses in tropical South America using chemical, isotopic and…”
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Holocene palaeoenvironmental reconstruction in northeastern Brazil inferred from pollen, charcoal and carbon isotope records
Published in Holocene (Sevenoaks) (01-09-2005)“…Soils in the Barreirinhas region, Maranhão State, were sampled for δ13 C analysis and buried charcoal fragments in the soils were radiocarbon dated. Three soil…”
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12
Late Holocene rainforest disturbance in French Guiana
Published in Review of palaeobotany and palynology (01-06-2001)“…Palm swamp forest sediments collected in French Guiana provide new data about late Holocene rainforest. Two cores were collected in ‘Les Nouragues’ ecological…”
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13
Trans-Amazon Drilling Project (TADP): origins and evolution of the forests, climate, and hydrology of the South American tropics
Published in Scientific drilling (Hokkaido, Japan) (17-12-2015)“…This article presents the scientific rationale for an ambitious ICDP drilling project to continuously sample Late Cretaceous to modern sediment in four…”
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14
Related changes in biodiversity, insolation and climate in the Atlantic rainforest since the last interglacial
Published in Palaeogeography, palaeoclimatology, palaeoecology (2009)“…The long-term Colônia record is located in the Atlantic rainforest domain in Brazil (23°52′S 46°42′20″W 900 m a.s.l.). The 780 cm long core CO3 provides a…”
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Onocerane attests to dry climatic events during the Quaternary in the tropics
Published in Organic geochemistry (01-03-2004)“…An unusual molecular fossil (onocerane I) has been detected in Quaternary lacustrine sediments (Lagoa do Caçó, NE Brazil) for the first time. This component…”
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Forest perturbations and biodiversity during the last ten thousand years in French Guiana
Published in Acta oecologica (Montrouge) (01-05-1998)“…Tropical forests can be described as a mosaic of juxtaposed eco-units corresponding to different stages of regeneration after treefals. However, these…”
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The Medieval Climate Anomaly and the Little Ice Age in the eastern Ecuadorian Andes
Published in Climate of the past (2013)Get full text
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18
Late Holocene development of a mangrove ecosystem in southeastern Brazil (Itanhaém, state of São Paulo)
Published in Palaeogeography, palaeoclimatology, palaeoecology (14-11-2006)“…Most palynological studies of mangroves have been carried out in the Indo-Pacific region, but few have investigated these ecosystems along the southern…”
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Holocene palaeoenvironmental reconstruction in norteastern Brazi inferred from polen,, charcoal and carboon isotope records
Published in Holocene (Sevenoaks) (01-09-2005)“…Soils in the Barreirinhas region, Maranhao State, were sampled for 613 C analysis and buried charcoal fragments in the soils were radiocarbon dated. Three soil…”
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Biological and mineralogical features of Andisols in the Mexican volcanic highlands
Published in Catena (Giessen) (31-10-2002)Get full text
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