Results 1 to 10 of about 358 (155)

Erosion and progradation in the Atrato River delta: A spatiotemporal analysis with Google Earth Engine

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2021
The Atrato River Delta in Northwestern Colombia has experienced notable geomorphological changes in its shoreline in recent years. We analyze these changes, associated with erosion and progradation, using Landsat imagery and Google Earth Engine (GEE ...
José Daniel Vélez-Castaño   +2 more
doaj   +6 more sources

Detection of Coastal Erosion and Progradation in the Colombian ‘Atrato River’ Delta by Using Sentinel-1 Synthetic Aperture Radar Data

open access: yesRemote Sensing
This paper presents a methodology to detect the coastal erosion and progradation effects in the ‘Atrato River’ delta, located in the Gulf of Urabá in Colombia, using SAR (Synthetic Aperture Radar) images.
Ahmed Alejandro Cardona Mesa   +2 more
exaly   +5 more sources

Contribution to a reference library of DNA barcodes of Colombian freshwater fishes [PDF]

open access: yesBiodiversity Data Journal, 2022
The Barcode of Life initiative was originally motivated by the large number of species, taxonomic difficulties and the limited number of expert taxonomists.
Manuela Mejía-Estrada   +3 more
doaj   +4 more sources

Biomonitoring of Mercury and Lead Levels in the Blood of Children Living near a Tropical River Impacted by Artisanal and Small-Scale Gold Mining in Colombia [PDF]

open access: yesToxics
(1) Background: Mercury and lead contamination resulting from various anthropogenic activities represents a global environmental problem and a considerable risk to the health of the human population.
Eurípides Palacios-Valoyes   +2 more
doaj   +2 more sources

Dataset of concentrations of mercury and methylmercury in fish from a tropical river impacted by gold mining in the Colombian Pacific [PDF]

open access: yesData in Brief, 2020
This data article includes information on the impact of gold mining along five zones of a tropical river in the Pacific region of Colombia. The concentrations of total mercury (THg), total length, mertimercury (MeHg) were determined in 16 species of fish.
Carlos Salazar-Camacho   +4 more
doaj   +2 more sources

Method for estimating discharge, hydraulic depth, and mean velocity in rivers through spatial interpolation of at-a-station hydraulic geometry in data- scarce regions [PDF]

open access: yesMethodsX
Reliable discharge estimation is essential for water resource management, yet many regions lack sufficient hydrological stations. To address this limitation, we propose the Spatial Hydraulic Geometry Interpolation (SHGI) method, which estimates discharge
Eduardo Zamudio-Huertas   +2 more
doaj   +2 more sources

TRADITIONAL USE OF WILD BIRDS BY AFRO-DESCENDANT COMMUNITIES IN THE LOW BASIN OF THE ATRATO RIVER, COLOMBIA

open access: yesTropical and Subtropical Agroecosystems, 2022
Background. The Afro-descendant communities inhabiting the lower portion of the Atrato River basin in Colombia maintain a close relationship with their environment's biological diversity and ecosystem.
Jeferson Asprilla-Perea   +1 more
doaj   +2 more sources

Hydrological responses in equatorial watersheds indicated by Principal Components Analysis (PCA) – study case in Atrato River Basin (Colombia)

open access: yesRevista Brasileira De Recursos Hidricos, 2020
The Atrato river basin is located in the Pacific fringe of Colombia, region with one of the highest precipitation rates in the world. The main purpose of this study is to determine the dominant processes in the hydrological responses along 17 sub-basins ...
Lucas Vituri Santarosa   +2 more
exaly   +3 more sources

Ecoregional and altitudinal distribution of the principal malaria vectors in Colombia [PDF]

open access: yesMalaria Journal
Background In Colombia, with over 100,000 cases reported in 2023, malaria is a significant vector-borne disease. The wide range of climates and highly variable topography and land cover of the country support a high species richness, favouring different ...
María C. Carrasquilla   +6 more
doaj   +2 more sources

Estimating taxonomic and functional structure along a tropical estuary: linking metabolic traits and aspects of ecosystem functioning [PDF]

open access: yesMicrobiology Spectrum
Microbial life forms are among the most ubiquitous on Earth, yet many remain understudied in Caribbean estuaries. We report on the prokaryote community composition of the Urabá Estuary in the Colombian Caribbean using 16S rRNA gene-transcript sequencing.
Héctor A. Levipan   +6 more
doaj   +2 more sources

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