Results 41 to 50 of about 149,623 (231)

The influence of hydrological seasonality and land use and cover on the relationship between dissolved organic carbon and carbon dioxide along a karst‐draining large tropical river

Limnology and Oceanography, Volume 70, Issue 10, Page 2858-2871, October 2025.
Abstract The partial pressure of carbon dioxide (pCO2) in rivers is influenced by carbonate weathering, soil CO2, photosynthesis, and the mineralization of dissolved organic carbon (DOC). In tropical regions, elevated temperatures intensify these processes. However, their seasonal dynamics remain poorly understood in large karst‐draining rivers.
Daniel Cuevas‐Lara, Javier Alcocer, Felipe García‐Oliva, Salvador Sánchez‐Carrillo, Ismael Soria‐Reinoso, Luis A. Oseguera   +5 more
wiley   +1 more source

Monitoring mosaic biotopes in a marine conservation zone by autonomous underwater vehicle

Conservation Biology, Volume 33, Issue 5, Page 1174-1186, October 2019., 2019
Abstract The number of marine protected areas (MPAs) has increased dramatically in the last decade and poses a major logistic challenge for conservation practitioners in terms of spatial extent and the multiplicity of habitats and biotopes that now require assessment. Photographic assessment by autonomous underwater vehicle (AUV) enables the consistent
Noëlie M.A. Benoist, Kirsty J. Morris, Brian J. Bett, Jennifer M. Durden, Veerle A.I. Huvenne, Tim P. Le Bas, Russell B. Wynn, Suzanne J. Ware, Henry A. Ruhl   +8 more
wiley   +1 more source

Heavy metal distribution in recent sediments along the Tietê River basin (São Pauro, Brazil) [PDF]

, 2011
The distribution of heavy metals in recent sediments deposited along the Tietê River, a highly polluted river in southeast region of Brazil was studied.
Meneghel de Moraes, Graziela, Mortatti, Jefferson, Probst, Jean-Luc   +2 more
core  

Carbon dynamics in high‐Andean tropical cushion peatlands: A review of geographic patterns and potential drivers

Ecological Monographs, Volume 94, Issue 3, August 2024.
Abstract Peatlands store large amounts of carbon (C), a function potentially threatened by climate change. Peatlands composed of vascular cushion plants are widespread in the northern and central high Andes (páramo, wet and dry puna), but their C dynamics are hardly known.
Mary Carolina García Lino, Simon Pfanzelt, Alejandra I. Domic, Isabell Hensen, Karsten Schittek, Rosa Isela Meneses, Maaike Y. Bader   +6 more
wiley   +1 more source

Rainfall and Hydrograph Styles in Ephemeral Streams of the Drylands of Patagonia (South America–Argentina)

Water Resources Research, Volume 60, Issue 8, August 2024.
Abstract Ephemeral streams in dry environments can convey high intensity sediment‐laden flash floods. The study of these events is quite difficult due to remote locations with limited accessibility, unexpected events, rough weather conditions and safety concerns.
Gabriel Kaless, Héctor Malnero, Oscar Frumento, Miguel Pascual   +3 more
wiley   +1 more source

Sedimentary characterization and application of PEJRUP diagram to interpret the dinamics in a small cove of the Lagoa dos Patos/Brazil [PDF]

, 2015
A partir da análise dos parâmetros estatísticos dos sedimentos de fundo de uma enseada estuarina e da aplicação do diagrama de Pejrup, foi possível caracterizar os processos dinâmicos e sedimentares que ocorrem em uma pequena enseada da Lagoa dos Patos ...
Oliveira, Allan de Oliveira de
core   +1 more source

Dating the Anthropocene in deep-sea sediments: a gamma spectrometric approach [PDF]

, 2017
1 poster presented at the International meeting of Sedimentology 2017 in Toulouse, France, from October 10th to 13thUtilizando muestras de sedimentos superficiales obtenidas durante la campaña OVIDE/BOCATS 2016 y una innovadora técnica para establecer ...
Álvarez-Fernández, María Jesús, Fontela, Marcos, Pedrosa, M. C., Alejo, I., Nombela, Miguel Ángel, Quintana, Begoña, Pérez, Fiz F., Francés, G.   +7 more
core   +4 more sources

CONECTIVIDADE DOS SEDIMENTOS: CONCEITOS, PRINCÍPIOS E APLICAÇÕES

Revista Brasileira de Geomorfologia, 2020
A conectividade de sedimentos pode ser entendida como a transferência de sedimentos entre diferentes compartimentos da paisagem através das relações entre seus componentes. Isso ocorre, principalmente, por meio da interação entre processos hidrológicos e sedimentológicos, os quais, por sua vez, são controlados por características geomorfológicas.
Zanandrea, Franciele, Paul, Leonardo Rodolfo, Michel, Gean Paulo, Kobiyama, Masato, Zanini, Aline da Silva, Abatti, Bruno Henrique   +5 more
openaire   +4 more sources

Importance of habitat heterogeneity in tidal flats to the conservation of migratory shorebirds

Conservation Biology, Volume 38, Issue 1, February 2024.
Abstract Understanding species distribution patterns and what determines them is critical for effective conservation planning and management. In the case of shorebirds migrating along the East Asian‐Australasian Flyway (EAAF), the loss of stopover habitat in the Yellow Sea region is thought to be the primary reason for the precipitous population ...
Shangxiao Cai, Tong Mu, He‐Bo Peng, Zhijun Ma, David S. Wilcove   +4 more
wiley   +1 more source

AVALIAÇÃO DA CONCENTRAÇÃO DE METAIS TOXICOS EM AMOSTRAS DE SEDIMENTOS DOS RESERVATÓRIOS DO COMPLEXO BILLINGS (GUARAPIRANGA E RIO GRANDE)

Geochimica Brasiliensis, 2018
O presente estudo teve como objetivo avaliar a concentração de metais tóxicos Cd, Cr, Cd, Hg, Ni, Pb e Zn e o semi-metal As e de outros metais de interesse, em amostras de sedimento superficial coletadas em pontos estratégicos no Sistema Billings ...
Larissa Souza Silva, Francisco Jorge Ferreira, Deborah Ines Teixeira Fávaro   +2 more
doaj   +1 more source