Results 101 to 110 of about 232,101 (213)

Nutrient dynamics of the highly productive C4 macrophyte Echinochloa polystachya on the Amazon floodplain

open access: yes, 1997
1. Echinochloa polystachya forms extensive monotypic stands on the lower levels of the Amazon floodplains. During its annual growth cycle c. 100t (dry mass) ha-1 of biomass is formed as the floodplain is being submerged (December-September) and a phase ...
Long, Stephen Patrick   +2 more
core   +1 more source

Hydrodynamic Response of Channel Flow Confluence to the Tributary Floodplain Topography

open access: yesWater Resources Research
River confluences with a compound‐channel tributary are common in large river networks, for example, the Yangtze River basin and the Amazon basin. They affect the confluence hydrodynamics, nutrient depletion and fish migration in the network, due to the ...
Guanghui Yan   +6 more
doaj   +1 more source

Nitrate attenuation in a restored river floodplain system: River Cole (Oxfordshire - UK) [PDF]

open access: yes, 2010
PhDRestoring river-floodplain connectivity has been proposed as an alternative management measure for natural flood defence through the temporary storage of floodwaters and the attenuation of flood peaks downstream.
Sgouridis, Fotis
core   +1 more source

Spatial and temporal variability of macrophyte growth and productivity in the Amazon floodplain [PDF]

open access: yes, 2009
The main objective of the present thesis was to investigate the spatial and temporal variability of macrophyte growth and productivity in the Amazon floodplain, and the possible effects of this variability on the carbon budget of the floodplain.
Silva, Thiago Sanna Freire
core  

Water quality changes in floodplain lakes due to the Amazon River flood pulse: Lago Grande de Curuaí (Pará)

open access: yesBrazilian Journal of Biology
Assurance of water quality for human consumption is essential for public health policies. In the Amazon floodplain, the seasonal water level variation causes periodic flooding of marginal areas that are usually used for settlements, agriculture and ...
AG Affonso, C. Barbosa, EMLM. Novo
doaj   +1 more source

Free-living Platyhelminthes of the Pacaya-Samiria National Reserve, a Peruvian Amazon floodplain

open access: yes, 2006
FIGURE 2. Microphotographs of Temnocephala lutzi. a: whole mount, scale bar 400 µm, b: detail of the stylet, scale bar 100 µm.Published as part of Noreña, Carolina, Damborenea, Cristina, Brusa, Francisco & Escobedo, Mario, 2006, Free-living ...
Brusa, Francisco   +3 more
core   +1 more source

Adaptability and Phenotypic Stability of Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) Lines in the Peruvian Amazon

open access: yesInternational Journal of Plant Biology
This study evaluated the suitability of three floodplain environments near Iquitos for cowpea cultivar recommendations and estimated the adaptability and phenotypic stability of 12 cowpea lines evaluated in 2004. Climatic conditions between 2004 and 2020–
Rodrigo Gonzales   +4 more
doaj   +1 more source

Amphibian diversity in Amazonian flooded forests of Peru [PDF]

open access: yes, 2015
Global biodiversity is currently facing the sixth mass extinction, with extinction rates at least 100 times higher than background levels. The Amazon Basin has the richest amphibian fauna in South America, but there remain significant gaps in our ...
Upton, Kathleen Anne
core  

Probabilidade de emigração dos pescadores de bagre da amazônia: implicações para o manejo

open access: yesBoletim do Instituto de Pesca, 2018
Este estudo objetivou determinar a probabilidade de emigração entre os pescadores de bagres amazônicos. Foram entrevistados 2.105 pescadores de agosto-2002 a maio-2003.
Adriana Rosa CARVALHO   +1 more
doaj  

IMPACTS OF CLIMATE CHANGE ON THE NATURAL DISTRIBUTION OF SPECIES OF LOWLAND HIGH AND LOW IN THE AMAZON

open access: yesRevista Árvore
The areas of Amazonian floodplains have added ecological value to their multiple ecosystem services, including water supply, local climate regulation, biodiversity with a marked number of endemic species, and diversity of micro-habitat.
Diulio Andrew Torres de Souza   +9 more
doaj   +1 more source

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