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... The South American genus Praxelis Cass. (Asteraceae, Eupatorieae) includes 18 species and is the second-largest genus of subtribe Praxelinae. It is distributed from Colombia, Venezuela and the Guianas, to central Argentina, southern Brazil and north-western Uruguay. Over the past 40years, one species, P. clematidea , has invaded several countries around the world. To understand Praxelis and its sp ...
German Rivillas-Ospina; Diego Casas; Mauro Antonio Maza-Chamorro; Marianella Bolívar; Gabriel Ruiz; Roberto Guerrero; José M. Horrillo-Caraballo; Milton Guerrero; Karina Díaz; Roberto del Rio; Erick Campos
National Oceanic and Atmospheric Administration; Python; Weibull statistics; climate; data collection; mathematics; probability; storms; user interface; wind; Colombia; Mexico
Abstract:
... This work presents APPMAR 1.0, an application written in the Python programming language that downloads, processes, and analyzes wind and wave data. This application is composed of a graphical user interface (GUI) that contains two main modules: the first module downloads data from WAVEWATCH III® (WW3) production hindcasts by the National Oceanic and Atmospheric Administration (NOAA); the second m ...
... The Agave genus is composed of approximately 210 species distributed from south United States to Colombia and Venezuela. Numerous Agave species have been used for the preparation of alcoholic beverages and have attracted interest in the pharmaceutical and food industry. Despite their economic importance, there are few initiatives for the improvement and selection of characteristics of interest. Th ...
Anura; herpetology; natural history; Andes region; Colombia
Abstract:
... We describe the advertisement call of Pristimantis zophus, a small and endemic Colombian rainfrog distributed throughout the cloud forests of the northern region of Western Andes. We analyzed 163 advertisement calls from six males. The advertisement call of P. zophus is relatively simple, short, with a duration of 0.227 ± 0.126 s (0.090–0.415), and consists of one or two notes of a single pulse an ...
... The Otún River watershed, located in the Colombian coffee region, provides water to over 700,000 inhabitants of the Risaralda department. Onion (Allium fistulosum) has been cultivated in this area since 1960, and it currently represents an important economic contribution for local farmers who have assimilated the models of intensive agricultural production with the common use of chemical inputs. T ...
... Agro-industrial residues are an important source of useful compounds. Colombia produces about 71 billion tonnes of agro-industrial residues per year as a result of the presence of different ecological niches that allow the cultivation of around 200 crops throughout the year. These residues are disposed of mainly in rivers and open fields. This review presents opportunities for a sustainable transf ...
... In agriculture, agroclimatic zoning procedures through geographic information systems provide producers, technical assistants, decision‐makers, and investors with land‐use planning and decision‐making tools. This study aims at identifying and delimiting areas suitable for the cultivation of rubber [Hevea brasiliensis Willd. ex A. Juss.) Müll. Arg.] in Colombia, using the species requirements at a ...
Adriana M. Gallego; Romer A. Zambrano; Martha Zuluaga; Anyela V. Camargo Rodríguez; Mariana S. Candamil Cortés; Angela P. Romero Vergel; Jorge W. Arboleda Valencia
... The pod husk of Theobroma cacao (CPH) plays an important agronomical role, as its appearance is used as indicator of ripening, guiding the farmers in the harvest process. Cacao harvesting is not a standardized practice because farmers harvest between six up to eight months from flowering, guided by pod's color and shape. The mixture of cacao beans from different ripening stages (RS), negatively af ...
... Malaria is an important public health problem, caused by Plasmodium parasites which are transmitted by female Anopheles mosquitoes that bite humans to obtain blood. The aim of this work was to identify the blood feeding sources of Anopheles female mosquitoes and calculate their entomological indices in relation to Plasmodium transmission. Mosquitoes were collected in malaria endemic localities of ...
Daniel Canton Enriquez; Jose A. Niembro-Ceceña; Martin Muñoz Mandujano; Daniel Alarcon; Jorge Arcadia Guerrero; Ivan Gonzalez Garcia; Agueda Areli Montes Gutierrez; Alfonso Gutierrez-Lopez
... Worldwide, COVID-19 coronavirus disease is spreading rapidly in a second and third wave of infections. In this context of increasing infections, it is critical to know the probability of a specific number of cases being reported. We collated data on new daily confirmed cases of COVID-19 breakouts in: Argentina, Brazil, China, Colombia, France, Germany, India, Indonesia, Iran, Italy, Mexico, Poland ...
... Diverse litter studies on Colombia's Central Caribbean Coast have presented the Microplastic issues regarding typology, magnitudes, and distribution. No studies have examined MPs' presence and abundances in relation to sediment grain size and the sediments statistical parameters (mean, median, sorting, skewness, kurtosis). This work attempts to fill this information gap in a study of 15 sampling s ...
agroforestry; case studies; contingent valuation; decision support systems; ecosystems; environmental education; forest conservation; forest reserves; forest restoration; forests; income; issues and policy; nonindustrial private forests; rural population; stakeholders; willingness to pay; Colombia
Abstract:
... Most of the rural population of developing countries depends on forest ecosystems; consequently, there is a myriad of trade-offs that jeopardize the ability of the forest to produce goods and services. To maintain the current forest cover and offer opportunities to improve rural livelihoods, more attention has been paid to the development of strategies to assess the plurality of values associated ...
... High-resolution wind power assessments, validated with ground data, are key for wind energy projects in regions of promising potential such as the Colombian Caribbean. This study assesses the annual wind power for this region at convection-permitting resolution, using the Weather Research and Forecasting (WRF) model with two nested domains (9 km and 3 km) and 50 vertical levels with 15 min outputs ...
Cryptosporidium; Giardia; United States Environmental Protection Agency; animal manures; chlorine; coagulants; disinfection; dose response; environment; feces; filtration; gastrointestinal system; humans; ingestion; microbiological risk assessment; models; monitoring; morbidity; parasites; pathogens; research; risk; risk assessment process; water; water quality; water supply; water treatment; Colombia
Abstract:
... Cryptosporidium spp. and Giardia spp. cause gastrointestinal diseases of zoonotic origin as well transmitted from person to person, being various reported outbreaks associated with water. The infecting (oo)cyst forms of these parasites are highly resistant to water treatments such as chlorine disinfection and fast filtration. The objective of this study was to assess the microbial risk of infectio ...
... In tropical regions, deep convective systems are associated with extreme rainfall storms that usually detonate flash floods and landslides in the Andean Colombian region. Several studies have used satellite data to address the structure and formation of tropical convective storms. However, there is a local gap in the characterization, which is essential for a better understanding of flash floods a ...
basins; case studies; decision making; drainage; flood control; geographic information systems; geometry; morphometry; probability; rain; satellites; soil; spatial data; sustainable development; water supply; watersheds; Colombia
Abstract:
... The geomorphology of a basin makes it possible for us to understand its hydrological pattern. Accordingly, satellite-based remote sensing and geo-information technologies have proven to be effective tools in the morphology analysis at the basin level. Consequently, this present study carried out a morphological analysis of the Sinú river basin, analyzing its geometric characteristics, drainage net ...
... Sweet potato is a valuable staple crop that guarantees food security to a large segment of the world population. The wide phenotypic and genetic variability of this species is an indication of its high adaptation capacity to diverse environmental conditions. In Colombia, it is a neglected and underutilized crop, mainly managed by traditional knowledge. The aim of this study was to recognize the co ...
Johnathan Alvarez-Londoño; Marelid Cardona-Romero; Estefani T. Martínez-Sánchez; Paula A. Ossa-López; Jorge E. Pérez-Cárdenas; Angie D. Gonzalez; Fredy A. Rivera-Páez; Gabriel J. Castaño-Villa
... Avian haemosporidian from the genera Haemoproteus and Plasmodium are a diverse and widely distributed group of vector-borne blood parasites. These parasites can have negative effects on bird survival by influencing several aspects of their life cycle, causing different clinical signs and even death. Colombia has the widest range of bird richness throughout the globe; however, the associations betw ...
... Interest in research on soft ticks has increased in recent decades, leading to valuable insight into their role as disease vectors. The use of metagenomics-based analyses have helped to elucidate ecological factors involved in pathogen, vector, and host dynamics. To understand the main bacterial assemblages present in Ornithodoros cf. hasei and its mammalian hosts, 84 ticks and 13 blood samples fr ...
climate; environmental assessment; environmental quality; rain; wet digestion method; Colombia; Latin America
Abstract:
... The baseline values for metal(loid)s in soils are known as a tool for the evaluation, prevention, and monitoring of the environmental quality of the soil. The main aim is to propose baseline values for metal(loid)s through the analysis of the concentrations in soils within natural areas; additionally, this study attempts to assess the environmental quality of soils in agricultural areas. The study ...
Siday Marrugo-Madrid; Clàudia Fontàs; Gülşah Kurt; Carlos Salazar-Camacho; Manuel Salas-Moreno; Harry Gutierrez-Mosquera; Jose Marrugo-Negrete; Sergi Díez
aqueous solutions; bioavailability; diffusivity; environmental technology; films (materials); gels; gold; ionic strength; mercury; pH; rivers; silica gel; traditional technology; Colombia
Abstract:
... In this study, the diffusive gradient in thin film (DGT) has been developed using three new materials derived from benzoylthiourea (PBTU, BTP1 and BTP2) for the determination of bioavailable mercury (Hg). The efficiency of these DGT devices was compared with the well-established 3-mercaptopropil functionalized silica gel (3MFS) in laboratory and field conditions. It was found that PBTU lacked of c ...
... Cocoa fermentation is the key and most relevant process in the synthesis of aroma and flavor precursor molecules in dry beans or raw material for producing chocolate. Because this process occurs in an uncontrolled manner, the chemical and sensory quality of beans can vary and be negatively affected. One of the strategies for the standardization and improvement of the sensory quality of chocolate i ...
... Bioaugmentation has many applications as a bioremediation technique. It is usually performed by bacteria but microalgal consortia also have great potential for bioremediation. This study evaluated the ability of a microbial consortium with predominance of microalgae (MCPM) to decontaminate the water of the Mallorquín tropical swamp. The Mallorquín Swamp is a natural water reservoir, essential for ...
... We provide a complete dataset of bird specimens of the zoological collection at the Universidad de Nariño, Colombia. For every specimen, we reviewed taxonomic identifications to species level by applying curatorial procedures, including the comparison of skins, the use of taxonomic keys and primary literature, and by confirming georeferenced locality data. We present 1249 specimens from 419 specie ...
... Leptospirosis is the most widespread zoonosis worldwide, causing severe effects on beef and dairy cattle farming and other livestock. Colombia geographical location in the tropical zone, high biodiversity, and climatic conditions promote Leptospira growth and prevalence. This review article presents state-of-the-art knowledge about the effects of leptospirosis on bovine reproduction and a critical ...
... Little is known about breakfast habits of the Latin American (LA) population to support nutritional recommendations for a balanced breakfast in this region. To evaluate the nutritional composition of breakfast in the LA population and to propose recommendations for a balanced breakfast. This multicenter cross-sectional study evaluated food and nutrient intake of nationally representative samples o ...
agriculture; cocoa beans; crop management; cultural capital; human capital; humans; infrastructure; livelihood; social capital; Colombia
Abstract:
... Cacao cultivation is one of the most important livelihoods for rural households in Colombia, where it is promoted as a substitute for the illegal cultivation of coca. To strengthen Colombian cacao farming, it is important to understand the livelihood strategies associated with cacao cultivation and the impact of these different strategies on the well-being of Colombian rural households. We analyze ...
... Cadmium is a toxic non-essential metal for almost all living systems. It is one of the biggest challenges for farmlands and the food chain because of its toxic effect on human health. This research aims to determine the Cd content in soils, litter and cacao beans, following the Cd fluxes within each cacao system using the two-dimensional electrical resistivity tomography technique. The study was c ...
Manihot esculenta; biomass; cassava; data collection; food security; harvest index; simulation models; water management; Colombia; Nigeria
Abstract:
... FAO’s water-driven crop growth simulation model, AquaCrop, was calibrated and validated for cassava (Manihot esculenta Crantz). Existing datasets, used in similar published works, were shared covering several years and regions (Colombia, Nigeria and Togo). Different varieties were tested for the case of Colombia and a single variety (TME-419) for Nigeria and Togo. Overall calibrated biomass simula ...
chlorophyll; experimental design; field capacity; gas exchange; greenhouses; leaf water potential; photosynthesis; soil water deficit; transpiration; water supply; water use efficiency; Colombia
Abstract:
... In the coffee-growing areas of Colombia, the vulnerability of soils to conditions of water deficit has been determined and this limitation has been projected to increase its intensity and severity during extreme climatic scenarios, which constitute one of the factors limiting coffee production. The objective of this study was to evaluate the effect of prolonged water deficit conditions on the phys ...
... Canine leptospirosis is a zoonosis of epidemiological importance. Dogs are recognized as primary reservoirs of Leptospira interrogans serogroup Canicola and a source of infection to the environment through urine. This study aimed to determine the presence of antibodies against Leptospira in canines from 49 municipalities in the Department of Antioquia, Colombia. We performed a cross-sectional stud ...
... Cassava frogskin disease (CFSD) is a graft-transmissible disease of cassava reported for the first time in the 1970s, in Colombia. The disease is characterized by the formation of longitudinal lip-like fissures on the peel of the cassava storage roots and a progressive reduction in fresh weight and starch content. Since its first report, different pathogens have been identified in CFSD-affected pl ...
... The authigenic clay mineral assemblage of paleosol profiles and trends in their bulk geochemical evolution provide insight into the intensity of past chemical weathering regimes. These climate-sensitive weathering products can be used to interpret regional changes of the soil moisture regime, which in turn reflects upon the nature of rainfall seasonality (e.g., unimodal vs. bimodal). A conspicuous ...
base flow; glaciers; humans; hydrometeorology; mountains; shrinkage; water security; watersheds; Andes region; Colombia
Abstract:
... Glaciated Andean mountains have experienced several decades of shrinkage in their transition to non-glaciated regimes. This study analyses the period of hydrologic transition from 1956 to 2020 in a watershed of the Sierra Nevada del Cocuy (SNC), which is the most extensive remaining tropical glacier in Colombia. Using ground hydrometeorological data, remote sensing products, a metric of extreme fl ...
... Fique is a plant widely produced in Colombia; its fibers are mainly used in the production of packaging, the fique industry produces large amounts of a residue called fiber dust, this residue preserves the properties of the fiber, and however it is discarded without any type of use. In this study, a surface modification consisting of the esterification of fique dust was carried out. Alkalinization ...
Luis J. Cruz Reina; Daniel David Durán-Aranguren; Laura Fernanda Forero-Rojas; Luisa Fernanda Tarapuez-Viveros; Dinary Durán-Sequeda; Chiara Carazzone; Rocío Sierra
... Cashew nut production generates large amounts of cashew apple as residue. In Colombia, cashew cultivation is increasing together with the concerns on residue management. The objective of this study was to provide the first chemical, physical and thermal decomposition characterization of cashew apple from Colombian varieties harvested in Vichada, Colombia. This characterization was focused to ident ...
Janet B. García-Martínez; Leidy P. Sanchez-Tobos; Nicolaz A. Carvajal-Albarracín; Andrés Fernando Barajas-Solano; Crisostomo Barajas-Ferreira; Viatcheslav Kafarov; Antonio Zuorro
... In this work, the capacity of wastewater from an inland fishery system in Colombia (Norte de Santander) was tested as culture medium for Chlorella sp. and Scenedesmus sp. Due to insufficient N and P concentrations for successful algae growth, the effect of wastewater replenishment with NO₃, PO₄, and Na₂CO₃ or NaHCO₃ as a carbon source was analyzed using a three-factor nonfactorial response surface ...
Lisiane Lappe dos Reis; Dayane Costa de Souza Lima; Túllio Romão Ribeiro da Silva; Francisco Carlos de Oliveira Braga; Alessandra Ferreira Dales Nava; Ana Carolina Paulo Vicente
... Giardia is an ubiquitous protozoa that infect a broad range of vertebrate hosts, including domestic and wild animals as well as humans. Giardia duodenalis is one of the most common parasite in humans and mammals worldwide. Human giardiasis is highly prevalent in the countries that make up from Amazon. The identification of genotypes in humans and animals improves the understanding of transmission ...
... BACKGROUND: Cyanobacteria blooms occur in freshwater and saline ecosystems under certain environmental conditions, such as eutrophication, that are often accompanied by the production of cyanotoxins; Those biological toxins are a risk to the health of animals and humans. The eutrophication of water bodies is becoming more frequent due to organic pollution pressure from swage discharge, so outcrops ...
Anura; cultural landscape; diet; entropy; functional diversity; land cover; land use change; species diversity; vegetation cover; Andes region; Colombia
Abstract:
... Taxonomical and functional facets of diversity are crucial to understanding the effects of landscape transformation on species assemblages, although there is a lack of consensus on the degree of congruence between diversity indices across land-uses. We evaluated the effect of natural and anthropogenic land cover types on anurans in the Andean region of Colombia. Changes between land cover types we ...
... Vegetation affects local water balance partitioning via effects on incoming precipitation, local radiation balance and soil hydrological properties. The extent of these effects is related to plant functional traits, such that forest composition plays an important role in its hydrological function. Therefore, the selection of species in forest restoration processes is key to recovering ecological ( ...
... We report the complete genome sequence of a field isolate of a novel bipartite secovirid infecting cassava in Colombia, provisionally named "cassava torrado-like virus" (CsTLV). The genome sequence was obtained using Oxford Nanopore Technology, and the 5’ ends were confirmed by RACE. The RNA1 is 7252 nucleotides (nt) long, encoding a polyprotein of 2336 amino acids (aa) containing the typical “rep ...
air; electric energy consumption; human health; infrastructure; soil pollution; wastewater treatment; water; water footprint; water management; water shortages; Colombia
Abstract:
... Protection of water resources implies the responsible consumption, and the return of this resource with the best physicochemical conditions. In organizations, water is consumed both directly in their facilities and indirectly in the products or services acquired for their operation, requiring a water accounting based on the life cycle perspective. This study aims to assess the comprehensive water ...
canopy; carbon dioxide; climate change; conservation areas; fauna; flora; heathlands; humans; land cover; land use; national parks; soil; soil conservation; soil organic carbon; Colombia
Abstract:
... Protected areas are important zones for the conservation of strategic ecosystems that provide environmental services to human populations. The Santuario de Fauna y Flora Iguaque (SFFI) (Boyacá, Colombia) preserves an important area of páramos and andean high-land forests that offer water and other services. Soil organic carbon (SOC) was estimated at a depth of 0–30 cm in the four dominant land use ...
... In tropical ecosystems, habitat degradation and fragmentation are some of the most important drivers of biodiversity loss. In Colombia, the Magdalena River basin is home to a megadiverse wildlife community, which has been historically exposed to pervasive habitat loss and fragmentation. Within a long‐term project on the conservation of critically endangered brown spider monkeys (Ateles hybridus), ...
Orthoptera; beverages; color; flavor; flour; particle size; smell; solubility; water activity; water uptake; Colombia
Abstract:
... Incorporating sustainable raw materials into food has been a challenge in two correlated stages. Firstly, on the design and development of a product. Secondly, on how consumers accept it. This study aimed to evaluate the level of sensory acceptance and the emotional response of the addition of cricket flour (CR) to dried mixtures of different granulometry and solubility of chucula, which is a trad ...
Olga Lucia Herrán Ramírez; Huarrisson Azevedo Santos; Patrícia Gonzaga Paulino; Carolina Soares van der Meer; José Luis Rodríguez Bautista; Ingrid Lorena Jaramillo Delgado; Juliana González Obando; Rene Ramirez Garcia; Isabele da Costa Angelo
... A cross-sectional study was conducted in Colombia to recover Brucella spp. DNA from bovine whole-blood samples through probe-based real-time PCR (qPCR). By an SNP-based assay, vaccine strains were differentiated from field strains. The associated factors were evaluated using logistical regression models. A total of 656 random cows from 40 herds were selected and analyzed using serology and PCR. Th ...
computer software; cryptococcosis; ecological studies; hospitals; monitoring; mortality; risk; secondary education; social inequality; Amazonia; Brazil; Colombia; Latin America
Abstract:
... The Brazilian Amazon has a specific epidemiological profile for cryptococcosis, considering its social and economic inequality, health reality, and low access to health services. Furthermore, Brazil and Colombia have the highest cryptococcosis incidence rates in Latin America. In this study, we identified the areas of risk for cryptococcosis in the state of Pará in the Brazilian Amazon. This was a ...
Flávia Terumi Nakashima; Ana Beatriz Monteiro Fonseca; Luiz Fernando de Oliveira Coelho; Alynne da Silva Barbosa; Otilio Machado Pereira Bastos; Claudia Maria Antunes Uchôa
... Cryptosporidiosis is an infection caused by a protozoon that inhabits the gastrointestinal tract. More than forty valid species have been described in the genus Cryptosporidium, infecting a broad range of hosts around the world, some with zoonotic transmission and others with predominant anthroponotic transmission. Prevalence studies conducted in Latin American countries have been specific, withou ...
... The giant sugarcane borer, Telchin licus (Drury) (Lepidoptera: Castniidae), also known as the banana stem borer, is an economically important pest of sugarcane in eastern Colombia. The presence of larval and pupal stages within stalks makes biological control of this pest difficult, and growers often resort to insecticide applications. Hilling up the soil around the base of plants, or soil moundin ...
... BACKGROUND: Native potatoes are Andean tubers of great historical, social, food, genetic and nutritional importance, and they contribute significantly to food security by supplementing the household diet and also providing alternative income. Even when their cultivation and consumption imply great benefits, their use and local preservation depend to a large extent on the recognition of their ethno ...
Leonomir Cordoba-Tovar; Virleydys Ríos-Geovo; M.F. Largacha-Viveros; Manuel Salas-Moreno; José Luis Marrugo-Negrete; Pablo Andrés Ramos; Lina Mosquera Chaverra; M.P. Jonathan
COVID-19 infection; Citrus; Eucalyptus globulus; Gliricidia sepium; Matricaria chamomilla; Zingiber officinale; public health; traditional medicine; viruses; Colombia
Abstract:
... The main background of this study is that corona virus (COVID-19) has caused a global chaos where there was a complete lockdown of the whole planet as well as the collapse of the health system in many developed, developing and under-developed countries. This situation has caused a public health system and till date no decisive treatment is being confirmed so far. The present study from western Col ...
biocenosis; case studies; computer software; data collection; databases; ecosystems; humans; urban areas; Colombia
Abstract:
... Documenting biotic interactions is pivotal for understanding ecosystem processes, and although there is a large amount of data in the scientific literature, it is overly dispersed in thousands of different sources with varying degrees of availability. Despite recent and partially successful efforts to integrate biotic interaction data at a global scale into single databases, those have mostly inco ...
Robert B. Wallace; Ariel Reinaga; Natalia Piland; Renzo Piana; F. Hernán Vargas; Rosa Elena Zegarra; Sergio Alvarado; Sebastián Kohn; Sergio A. Lambertucci; Pablo Alarcón; Diego Méndez; Fausto Sáenz-Jiménez; Francisco Ciri; José Álvarez; Fernando Angulo; Vanesa Astore; Jannet Cisneros; Jessica Gálvez-Durand; Rosa Vento; Celeste Cóndor; Víctor Escobar; Martín Funes; Alejandro Kusch; Adrián Naveda-Rodríguez; Claudia Silva; Galo Zapata-Ríos; Carolina Gargiulo; Sandra Gordillo; Javier Heredia; Rubén Morales; Alexander More; David Oehler; Oscar Ospina-Herrera; Andrés Ortega; José Antonio Otero; Carlos Silva; Guillermo Wiemeyer; Lorena Zurita
Vultur gryphus; birds of prey; expert opinion; wildlife; Andes region; Argentina; Bolivia; Chile; Colombia; Ecuador; Peru; Venezuela
Abstract:
... The Andean Condor (Vultur gryphus) is a culturally iconic wildlife symbol for the South American Andes, but is naturally found at very low population densities, and is increasingly threatened. Using the Range Wide Priority Setting methodology, we (a group of 38 Andean Condor experts) updated the Andean Condor historical range (3,230,061 km²), systematized 9998 Andean Condor distribution points acr ...
Landsat; data collection; ecosystems; forests; highlands; land cover; land use; mountains; remote sensing; Andes region; Colombia
Abstract:
... An increasing frequency of extreme atmospheric events is challenging our basic knowledge about the resilience mechanisms that mediate the response of small mountainous watersheds (SMW) to landslides, including production of water-derived ecosystem services (WES). We hypothesized that the demand for WES increases the connectivity between lowland and upland regions, and decreases the heterogeneity o ...
DNA; Giardia lamblia; Toxoplasma gondii; genes; genotyping; human population; humans; parasitology; polymerase chain reaction; public health; rivers; soil temperature; watersheds; Andes region; Colombia
Abstract:
... Two zoonotic protozoan pathogens, Giardia duodenalis and Toxoplasma gondii, are important causes of waterborne infections in the Quindío region in Colombia. No previous data exist on how contamination occurs at the source for drinking water consumed by the human population in this region. Our aim was to describe the frequency of G. duodenalis and T. gondii DNA in 11 sampling points during a five-m ...
... Context The kikuyu grass (Cenchrus clandestinus) is native to Africa and is one of the most widely used grasses for forage feeding in dairy regions around the world. Aims To obtain the first set of microsatellite markers for the population genetics study of kikuyu grass, using nextgeneration sequencing technology (Illumina MiSeq). Methods Sixty loci were evaluated, in which a subset of 12 loci wer ...
Simone Kann; Juan Carlos Dib; Andrés Aristizabal; Gustavo Concha Mendoza; Hugo Dario Soto Lacouture; Maria Hartmann; Hagen Frickmann; Lothar Kreienbrock
... Chagas disease (CD) is one of the leading neglected tropical diseases. In the Americas, CD is endemic in about 21 countries, but only less than 1% of the patients have access to medical treatment. Indigenous populations are particularly affected because they live in socio-economic and climate conditions that favor CD infections. In this study, diagnostic strategies and regional prevalence of the C ...
Eunotia; Pinnularia; alkalinity; global change; pH; phosphorus; sediments; species diversity; surveys; total organic carbon; Colombia
Abstract:
... A survey of 60 high mountain lakes of Colombia’s Eastern Range was performed to evaluate the response of surface-sediment diatoms to environmental variables. In each one of these lakes, water samples were taken for physical and chemical characterization, and diatoms were collected from the superficial bottom sediment at the deepest part. Multivariate statistical analyses were made to determine the ...
... Cyclamen (Cyclamen persicum Mill.) is an ornamental plant affected by various phytosanitary issues including bacterial soft rots, which cause crop losses of 20% worldwide. In Colombia, however, the symptoms of bacterial soft rots are not well described and the causal agents are unknown. This study aimed to characterize the bacterial soft rot disease according to its symptoms, and identify its caus ...
network theory; neural networks; prediction; water; water distribution; Colombia
Abstract:
... Water distribution system monitoring is currently carried out using advanced real-time control technologies to achieve a higher operational efficiency. Data analysis techniques can be implemented for condition estimation, which are crucial tools for managing, developing, and operating water networks using the monitored flow rate and pressure data at some network pipes and nodes. This work proposes ...
... The specimens collected by José Jerónimo Triana are an important legacy of the first major scientific expedition organized by the government of Nueva Granada, present‐day Colombia: the Chorographic Commission. After finishing his duties in the Commission, Triana gave to the Colombian government a complete set of his specimens in 1856, along with a catalog where he taxonomically organized and numbe ...
Héctor E. Ramírez-Chaves; María M. Torres-Martínez; Jose J. Henao-Osorio; Karin Osbahr; Catalina Concha-Osbahr; Fernando C. Passos; Elkin Noguera-Urbano
Mammalia; Sechium edule; ciders; introduced species; male genitalia; natural history; potatoes; predation; road kills; shrubs; Andes region; Bolivia; Colombia; Ecuador; Peru
Abstract:
... The stump-tailed porcupine, Coendou rufescens, is a widely distributed but scarcely documented species inhabiting the Andean region of Colombia, Ecuador, Peru, and an isolated population in Bolivia. Despite the wide distribution different aspects on its biology and ecology are still unknown. We present an update to the distribution of C. rufescens, and recent observations on the anatomy, natural h ...
... Candida spp. was characterized in the oral cavity of cancer patients in a health care center in Barranquilla, Colombia. This is a cross-sectional investigation including 60 oncological patients with oral candidiasis, selected by convenience sampling, from whom samples were subjected to culture in Sabouraud chloramphenicol agar, CHROMagar® Candida and Sabouraud dextrose agar were taken. The antifun ...
Jorge R. Díaz‐Valderrama; Ricardo Zambrano; Sergio Cedeño‐Amador; Ulises Córdova‐Bermejo; Gianmarco G. Casas; Nilda García‐Zurita; Juan A. J. Sánchez‐Arévalo; Enrique Arévalo‐Gardini; Darío Dávila; Juan Ruiz; Xiomy Pinchi‐Dávila; Zarella R. Quispe‐Chacón; Julio A. Chia‐Wong; Oscar P. Hurtado‐Gonzales; Carlos A. Rodríguez‐Callañaupa; Casto Maldonado‐Fuentes; Eucebio Pérez‐Callizaya; Santos Leiva‐Espinoza; Manuel Oliva‐Cruz; Dylan M. Guevara‐Ruiz; Esperanza Torres‐Rojas; Elizabeth Johnson; Wilbert Phillips‐Mora; M. Catherine Aime
Moniliophthora roreri; center of origin; data collection; frosty pod rot; fungi; genetic variation; inoculum; microsatellite repeats; pathogens; plant pathology; single nucleotide polymorphism; Amazonia; Bolivia; Caribbean; Central America; Colombia; Ecuador; Latin America; Peru
Abstract:
... Frosty pod rot disease of cacao (FPR), caused by the fungus Moniliophthora roreri, has severely impacted the production of cocoa in Latin America since its discovery. Prior to the 1950s, FPR was known only from Colombia and Ecuador. However, beginning in the 1970s, its geographical range has dramatically expanded throughout most of the cacao‐producing regions of the Americas. The origin of the pat ...
... Blastocystis is a common intestinal protist in humans and animals worldwide. Wild and domestic animals are thought to be reservoirs of Blastocystis subtypes that also infect humans. There are limited studies on the prevalence and subtype distribution of Blastocystis in horses. In this study, 185 fecal samples were collected from horses (1 month to 17 years of age) in four regions of Colombia (Saba ...
Leishmania; Lutzomyia; Neotropics; aquifers; caves; geographical distribution; habitat preferences; karsts; limestone; phylogeny; species diversity; surveys; Andes region; Brazil; Colombia
Abstract:
... Sandflies are vector species of Leishmania, among many other pathogens, with a global distribution and a variety of ecological niches. Previous samplings have found that karstic formations (i.e., caves, grottos, and folds formed by the erosion of limestone) serve as a natural habitat to sandfly species. The majority of samplings of cave sandfly diversity have occurred in Brazil and to date none ha ...
aquifers; climate; climate change; compliance; groundwater; sustainable development; water conservation; water shortages; water use efficiency; Colombia
Abstract:
... This research presents empirical evidence on what drives and inhibits cooperative behavior in groundwater management adaptive to climate change. Given vital character of water, its availability should not be only an explanatory variable in adaptation; but an issue subject to socio-physical explanations on how farmers adapt to declining water stocks. Instead of studying if farmers relying on ground ...
Acropora cervicornis; Miozoa; asexual reproduction; corals; early development; embryogenesis; lawns and turf; life history; sediments; Caribbean Sea; Colombia
Abstract:
... Acropora cervicornis underwent massive mortalities in the Caribbean Sea and its populations have failed to recover after several decades. This study aimed to document the early life history of A. cervicornis from embryogenesis to symbiotic dinoflagellates acquisition. Gametes were collected in Islas del Rosario (Colombia) and a cross-fertilization was performed ex situ. A settlement experiment was ...
decision support systems; ecosystems; environmental management; environmental policy; food security; indigenous peoples; litigation; Colombia; Latin America
Abstract:
... In the last years, the interest in ecosystem services (ESs) as a decision-making tool for environmental policy has been growing. The ES paradigm has also impacted the judicial system and in some countries the common law tradition. Experiences and lessons learned from the ES litigation have been already documented. In the initial analysis, this article aims to identify key trends in ESs case law in ...
... There is growing evidence that physical exercise (PE) may boost cognitive performance. However, criteria regarding PE intensity, duration, and frequency are still being studied. We hypothesize that high PE intensities have effects on inhibitory control. For this reason, our aim was to study the effect of acute PE on IC in healthy young students of a bachelor's degree in physical education and exer ...
... The conditions of the agroecological environment play a fundamental role in the physiological performance of quinoa; however, due to the accelerated expansion of quinoa cultivation and the great diversity of cultivars present in the world, it has not been possible to study the effect that their interaction can have, which brings with it problems in productivity and even in the adaptability of cult ...
... In Colombia, plastic bags containing the pesticide chlorpyrifos protect the growing bunches of bananas and plantains from insects. When the bananas are harvested, the plastic bags are removed. This plastic, which may contain chlorpyrifos residues, is sometimes reused or recycled for other uses such as toy manufacturing. This is prohibited by environmental authorities in Colombia. The paper reports ...
case studies; computer software; decision making; drinking water; environmental performance; hybrids; life cycle assessment; metropolitan areas; rain; wastewater; wastewater treatment; water distribution; water reuse; water use efficiency; Colombia
Abstract:
... Rainwater harvesting systems (RWHS) and greywater reuse systems (GWRS) are prominent alternatives for urban water management, which contribute to improving water use efficiency and conservation. The evaluation of these systems has been based mainly on technical, social and financial aspects. Recently, some studies have analyzed the environmental performance of RWHS and GWRS separately, showing pro ...
... Pneumococcal conjugate vaccines (PCVs) have decreased pneumonia in children. Colombia introduced mass vaccination with PCV10 in 2012. Cases of pneumococcal pneumonia from 10 hospitals were included. Two periods were compared: pre-PCV10: 2008–2011 and post-PCV10: 2014–2019. The objective was to compare epidemiological and clinical characteristics before and after PCV10 vaccination. A total of 370 c ...
Asteraceae; cattle; disc florets; habitats; new species; population size; ray florets; Colombia
Abstract:
... Espeletia saboyana, a new species from Páramo de Saboyá, Boyacá department, Colombia, is described and illustrated. It is a caulescent rosette up to 5 m tall, with whitish-cinereous appearance, sessile leaves with elliptic laminae, cymose capitulescences with aphyllous unbranched portion and 3–5 capitula, 5–13 phyllaries, the external ones 17.4–26.0 mm long, 49–92 ray florets 13.0–18.4 mm long, an ...
Proechimys semispinosus; compliance; food security; fruits; humans; mice; nutrition; risk; tropical forests; wild animals; Africa; Asia; Colombia; Latin America
Abstract:
... Wild foods contribute to the food security of multiple communities in tropical areas of Africa, Asia and Latin America. However, wild foods are not regularly considered in the planning of strategies for food and nutrition security mainly due to the lack of technical and/or scientific knowledge so that they can be considered suitable for human consumption. This paper proposes a multidisciplinary me ...
... Little is known about how spatial literacy influences mapping and decision-making related to environmental management and ecosystem services. We assessed the role of spatial landscape literacy in participatory environmental management and ecosystem service assessments in peri-urban Bogota, Colombia. Spatial landscape literacy (SL) was evaluated by testing stakeholder’s ability to locate specific l ...
Alexandra Nauditt; Kerstin Stahl; Erasmo Rodríguez; Christian Birkel; Rosa Maria Formiga-Johnsson; Marko Kallio; Lars Ribbe; Oscar M. Baez-Villanueva; Joschka Thurner; Hamish Hann
basins; drought; environment; risk; risk assessment process; river flow; stakeholders; vegetation; Brazil; Cambodia; Colombia; Costa Rica; Vietnam
Abstract:
... Droughts are causing severe damages to tropical countries worldwide. Although water abundant, their resilience to water shortages during dry periods is often low. As there is little knowledge about tropical drought characteristics, reliable methodologies to evaluate drought risk in data scarce tropical regions are needed. We combined drought hazard and vulnerability related data to assess drought ...
Tatiana Sadalla Collese; Augusto César F. De Moraes; Tara Rendo-Urteaga; Laura I. Gonzalez-Zapata; Diego Alejandro Gaitán Charry; Carlos A. Delgado; Gabriela Berg; Francisco Leonardo Torres-Leal; Heráclito B. Carvalho
biomarkers; blood serum; children; diet recall; dietetics; energy intake; ferritin; food frequency questionnaires; food intake; hemoglobin; iron; observational studies; youth; Argentina; Brazil; Colombia; Peru
Abstract:
... A food frequency questionnaire (FFQ) for South American children and adolescents was developed, but its validity for assessing dietary iron intake has not been evaluated. To evaluate the validity of the FFQ and 24-hour dietary recalls (24h-DR) for assessing dietary iron intake in children and adolescents. The South American Youth/Child Cardiovascular and Environmental study is a multicenter observ ...
African swine fever; Philippines; animal welfare; disease transmission; economic impact; farms; hog cholera; human health; politics; stakeholders; swine; vaccination; Colombia; Republic of North Macedonia; Vietnam
Abstract:
... African swine fever (ASF) and classical swine fever (CSF) are two major transboundary animal diseases of swine with important socioeconomic consequences at farm, subnational and national level. The objective of this study was to evaluate the direct cost of outbreaks and their control at country/regional level in four countries: namely CSF in Colombia in 2015–2016, the retrospective cost of ASF in ...
... To optimize coffee (Coffea arabica L.) production in Colombia, adaptation strategies that improve water use must be developed. Therefore, the objective of this study was to determine evapotranspiration under standard conditions (ETc), reference evapotranspiration (ETₒ), and the crop coefficient (Kc) of coffee plants interplanted between maize (Zea mays L.) (coffee–maize) for the first 12 mo of gro ...
Nury N. Olaya-Galán; Adriana P. Corredor-Figueroa; Sebastián Velandia-Álvarez; Diana S. Vargas-Bermudez; Nathalia Fonseca-Ahumada; Kerlimber Nuñez; Jairo Jaime; María Fernanda Gutiérrez
... Bovine leukemia virus (BLV) is the causative agent of leukemia/lymphoma in cattle. However, previous evidence has shown its presence in other species of livestock as well as in humans, suggesting that other species can be accidental hosts of the virus. In viral infections, receptors that are common to different animal species are proposed to be involved in cross-species infections. For BLV, AP3D1 ...
bottle feeding; breast feeding; evolution; infant formulas; liquids; milk; rural areas; time series analysis; urban areas; Bolivia; Caribbean; Colombia; Dominican Republic; Guatemala; Haiti; Latin America; Peru
Abstract:
... BACKGROUND: Early introduction of liquid/solid food before 6 months of age is one of the major barriers to exclusive breastfeeding. Our objective was to analyze the evolution of infant feeding practices for infants under 6 months of age in Latin American and Caribbean countries in the decades of 1990, 2000 and 2010. METHOD: Cross-sectional time series study with data from Demographic and Health Su ...
... The implementation of China's ban on plastic waste, the Basel Convention (Amendment) and the outbreak of the COVID-19 epidemic have brought new possibilities and challenges to the development of global plastics trading patterns. The spatial and temporal evolution of the Global Plastic Waste Trade Network (GPWTN), the prediction of the trade “sources” and “sinks” of the dominated countries in the f ...
bananas; biofuels; biomass; combustion; energy balance; equipment; exergy; fuel production; heat; power plants; pyrolysis; viability; wastes; Colombia
Abstract:
... Health and environmental problems arise in the world due to gases produced during the combustion of fossil fuels. This problem has focused on researching the production of renewable fuels from biomass. One type of biomass is the waste produced during banana cultivation. In this industry, for every ton of banana harvested, there are on average four tons of waste that also pollute the environment. T ...
decision making; ownership; stakeholders; sustainability science and engineering; sustainable development; Colombia; Mongolia; Sri Lanka
Abstract:
... Increased systems thinking capacity—that is, the capacity to consider systemic effects of policies and actions—is necessary for translating knowledge on Sustainable Development Goals’ (SDGs) interactions into practice. Various models and tools that seek to support more evidence-based policy-making have been developed with the purpose of exploring system effects across SDGs. However, these often la ...
... This study examined the background before admission to a nursing home and the conditions for the continuity of care, of the relatives of older adults of Colombia and Spain. The study sample comprised 546 participants: 278 and 268 from Colombia and Spain, respectively. Structured interviews were conducted with the older adults’ relatives. Sociodemographic similarities predominated, although in the ...
... Even though diversification of horticultural production systems allows farmers to cope with risks and uncertainties, strategies for raising profitability usually aim to improve the productivity of monocultures rather than pursuing diversification. Horticultural production systems are often highly diversified in terms of land use and planted crops. Assessing the economic prospects of these complex ...
... In Colombia, nearly six decades of war have devastated the countryside and induced land-related issues that perpetuate marginalization of rural people. Although the Peace Agreement of 2016 and the Integral Rural Reform offer new prospects for resolving legacies of conflict, the reconstruction of the countryside requires participation of rural communities. Social movements advance agroecology as a ...
Bothrops; antivenoms; ecoregions; immune response; metalloproteinases; phenotype; proteomics; public health; snake venoms; toxicity; Colombia; Latin America
Abstract:
... Bothrops asper envenoming is a public health problem in tropical regions of Latin America. Bothrops asper has spread until Gorgona Island in the Pacific Colombian Ocean, but its biochemical venom characterization is poorly known. Thus, to increase knowledge on Bothrops species venoms, we developed for the first time the proteomic analysis using a shotgun approach and performed functional evaluatio ...
... Coxiella burnetii is the etiologic agent of Q fever, a zoonotic infectious disease of worldwide distribution that has a wide clinical spectrum. Transmission of C. burnetii occurs by inhalation of contaminated secretions and excreta of infected animal species, particularly goats, cattle and sheep. Activities associated with livestock contact represent the principal risk factor, however participatio ...
Inés A. Revelo-Mejía; Robinson Gutiérrez-Idrobo; Vilma A. López-Fernández; Alejandra López-Rosales; Francy C. Astaiza-Montenegro; Leomary Garcés-Rengifo; Paola A. López-Ordoñez; Arturo Hardisson; Carmen Rubio; Ángel J. Gutiérrez; Soraya Paz
acceptable daily intake; dental caries; fluorides; fluorosis; food intake; protective effect; risk; river water; specific ion electrodes; watersheds; Colombia
Abstract:
... Fluoride concentrations of 0.5 mg/L in drinking water are considered useful for dental caries prevention. However, fluoride concentrations higher than 1.2 mg/L in water can pose a risk of dental fluorosis due to high exposure to fluoride. The objective is to determine the fluoride concentration in water from aqueducts of different Colombian municipalities of Cauca (Popayán, Coconuco, and Puracé) t ...
... Semi-arid environments characterized by low rainfall are subject to soil desertification processes. These environments have heterogeneous landscapes with patches of vegetation known as resource islands that are generated by nurse species that delay the desertification process because they increase the availability of water and nutrients in the soil. The study aimed to characterize some foliar phys ...
case studies; food sovereignty; gender; market economy; peasantry; politics
Abstract:
... While social and political movements are the scale of action most often identified with food sovereignty-related struggles, everyday provisioning practices are critical for sustaining the distinctiveness and relative autonomy of localised food systems. We examine gendered provisioning in a Colombian, Afro-descendent community as a case study of how food sovereignty is enacted in daily life. Women' ...
cattle; deforestation; forestry; forests; land policy; land use; public policy; sustainable development; Colombia
Abstract:
... Tackling deforestation remains a significant challenge in tropical countries and even more so in those affected by armed conflicts. This is partly because of the limited local understanding of the causes of forest cover changes (FCC) and how these causes relate to development. In this study, we use Colombia as a model to contribute to the understanding of the links between the causes of FCC in con ...
Acacia mangium; Samanea saman; Schizolobium parahyba; canopy; case studies; forest restoration; gold; species richness; Colombia
Abstract:
... Technical reclamation and spontaneous succession (passive restoration) are the two main approaches for restoring post-mining sites worldwide. Despite substantial differences between both approaches, little is known regarding how they differ in terms of ecological outcomes. We assessed and compared the vegetation structure and composition in one spontaneous succession forest that is 29 years old, t ...
... This contribution explores processes of political class formation in peasant autonomy movements. The paper is based on a comparison of two peasant autonomy movements emerging from diverse agrarian structures and looks at how each movement emerged and developed. It argues that variations in class bases, cultural traditions and political histories shape the different ways autonomy is conceived and p ...
United Nations Framework Convention on Climate Change; biofuels; carbon dioxide; carbon sequestration; case studies; energy efficiency; greenhouse gas emissions; hydrogen; oil and gas industry; supply chain; Colombia
Abstract:
... The oil and gas industry is responsible for 6% of total global CO₂ emissions, from exploration to downstream petrochemical production and account for another 50% when including the use of its products. Thus, this industry has a significant role in realising the target of net “zero” CO₂ emissions by 2070, essential to limit global warming to 1.8 °C [2], as introduced under the Paris agreement. Curr ...
Maria C. Lopez-Osorio; José Aldemar Usme-Ciro; José William Martínez; Dioselina Peláez-Carvajal; Javier Hernández; Sergio Hoyos; Juan Carlos Restrepo; Maria-Cristina Navas
... Hepatitis C virus (HCV) infection is one of the leading risk factors for end-stage liver disease development worldwide. This RNA virus displays high genetic diversity with 8 genotypes and 96 subgenotypes with heterogeneous geographical distribution around the world. In this study, we carried out an active case finding of individuals with a history of transfusion events before 1996 in three cities ...