Results 41 to 50 of about 41,039 (215)
Anais da Academia Brasileira de Ciências, 2015 Ancient drainage systems are being increasingly documented in the Amazon basin and their characterization is crucial for reconstructing fluvial evolution in this area.
Ericson H. Hayakawa, Dilce F. Rossetti
doaj +1 more source
Flood pulse and spatial dynamics of mercury in sediments in Puruzinho lake, Brazilian Amazon [PDF]
Acta Amazonica, 2014 The study was conducted in Puruzinho lake (Humaitá, AM) considering seasonal periods of rainy and dry in way to elucidate the flood pulse importance in the deposition, remobilization and distributions of mercury and organic matter in bottom sediments in ...
Ronaldo de Almeida +6 more
doaj +1 more source
The precarious conviviality of water mills [PDF]
, 2018 Social institutions such as the water-powered grain mills of Ottoman Cyprus are elaborately interconnected with a wide range of human and non-human players, from millers and villagers to water, gradient, stone and climate.
Given, Michael
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Confins, 2016 During the past forty years, Rondônia has seen significant changes, beginning with construction of, BR 364, and the rapid expansion of the agricultural frontier into the southern and central portions of the state during the 1970s and 1980s.
Steven J. Rainey +1 more
doaj +1 more source
Evolutionary history and identification of conservation units in the giant otter, Pteronura brasiliensis. [PDF]
, 2011 The giant otter, Pteronura brasiliensis, occupies a range including the major drainage basins of South America, yet the degree of structure that exists within and among populations inhabiting these drainages is unknown.
Ariani, C. +19 more
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Fishes from the Jaru Biological Reserve, Machado River drainage, Madeira River basin, Rondônia State, northern Brazil [PDF]
Biota Neotropica, 2017 Abstract: This work assessed freshwater fishes collected at 12 stations located along the Tarumã River, middle Machado River, Madeira River basin. The fieldwork took place in May and September 2015 during the high and low water seasons, respectively.
Costa, Igor David +2 more
openaire +3 more sources
Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon region
RBRH, 2018 The studies on metals in Madeira River’s principal flow show high variability of Co, Cr, Cu, Fe, Ni, Pb and Zn concentrations. However, the transfer of these metals from the main river channel, whose physical and chemical characteristics differ from ...
Dario Pires de Carvalho +4 more
doaj +1 more source
A new record of fossil wood of Vochysiaceae from the Upper Pleistocene (Arroyo Feliciano Formation), Argentina, South America [PDF]
, 2015 A new species of Qualeoxylon Suguio & Mussa is described from the Late Pleistocene Arroyo Feliciano Formation of the Gualeguay Basin on eastern Argentina.
Brea, Mariana, Moya, Eliana Vanesa
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Hydrosedimentary Dynamics in the Confluence of the Beni and Mamoré Rivers
Revista Brasileira de GeomorfologiaThis study analyzed hydrosedimentary dynamics at the confluence of the Beni and Mamoré rivers, the two main source rivers of the Madeira River, the largest tributary of the Amazon River.
Ednaldo Bras Severo +12 more
doaj +1 more source
Extreme rainfall in Madeira: the June 2023 weather event
Weather, EarlyView.This study investigates the meteorological conditions behind the extreme precipitation event on 6 June 2023 over Madeira Island, Portugal. The event set a national daily record of 497.5mm and was unusual for occurring in early summer, as most extremes in the region occur in winter.
Tiago M. Ferreira +5 more
wiley +1 more source