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Engystomops puyango

National Institutes of Health

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
Review
2020
Review
2020
Cyanide Contamination of the Puyango-Tumbes River Caused by Artisanal Gold Mining in Portovelo-Zaruma, Ecuador
Purpose of Review To examine cyanide (CN-) contamination of a large river in southeastern Ecuador that has been severely impacted… 
2018
2018
Evidence of transboundary mercury and other pollutants in the Puyango-Tumbes River basin, Ecuador-Peru.
In Portovelo in southern Ecuador, 87 gold processing centers along the Puyango-Tumbes River produce an estimated 6 tonnes of gold… 
2018
2018
Opportunistic cannibalism and necrophagy in Engystomops pustulosus (Cope, 1864)
the animal kingdom and often occurs in high-density populations when food availability is low (Polis, 1981; Crump, 1983). This… 
2018
2018
Potencial para la exploración de aguas subterráneas en la Demarcación Hidrográfica Puyango Catamayo, Ecuador, utilizando un proceso de análisis jerárquico basado en SIG y teledetección
The objective of this study is to apply geographic information systems and remote sensing techniques to map potential areas for… 
2015
2015
Acute toxicity and sublethal effects of the mixture glyphosate (Roundup Active) and Cosmo-Flux 411F to anuran embryos and tadpoles of four Colombian species.
Glyphosate is the most widely used herbicide in the world with application in agriculture, forestry, industrial weed control… 
Review
2015
Review
2015
Plan de marketing para la empresa Almaexport S.A. productora de café molido alma lojana, de la ciudad de Alamor, cantón Puyango
This research has the general objective Develop a marketing plan for the company ALMAEXPORT S.A, producer of Alma Ground Coffee… 
2013
2013
EFECTOS LETALES Y SUBLETALES DEL GLIFOSATO (ROUNDUP® ACTIVO) EN EMBRIONES DE ANUROS COLOMBIANOS
Glyphosate is an herbicide widely used in agriculture, which may affect non-target species. The aim of this study was to… 
2013
2013
PLAN DE MARKETING PARA LA COOPERATIVA DE AHORRO Y CRÉDITO 23 DE ENERO DE LA CIUDAD DE ALAMOR, CANTÓN PUYANGO
2004
2004
Mejoramiento de las propiedades físicas y químicas del suelo mediante aplicación de bocashi, para cultivar pimiento híbrido quetzal, cantón Puyango
1969
1969
Synchronous oogenesis in Engystomops pustulosus, a neotropic anuran suitable for laboratory studies: localization in the embryo of RNA synthesized at the lampbrush stage.
An investigation of several tropical frogs was undertaken in order to find species in which synchronous oogenesis takes place, so… 
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