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A reliable bioassay procedure to evaluate per os toxicity of Bacillus thuringiensis strains against the rice delphacid, Tagosodes orizicolus (Homoptera: Delphacidae)
(Universidad de Costa Rica, 2007)
A reliable bioassay procedure was developed to test ingested Bacillus thuringiensis (Bt) toxins on the rice delphacid Tagosodes orizicolus. Initially, several colonies were established under greenhouse conditions, using ...
Consumo de embutidos en mujeres costarricenses: efecto del nivel socioeconómico
Intake of processed meats by Costa Rican women: effect of socioeconomic status
(2021)
Introducción: El consumo de embutidos se ha asociado con serios problemas de salud que son comunes entre la población femenina. En el 2015 la Agencia Internacional para la Investigación en Cáncer clasificó los
embutidos, ...
Biomonitoreo acuático
(Universidad de Costa Rica, 2010)
En la actualidad se emplea el uso de macroinvertebrados como indicadores de calidad del agua. El uso de este tipo de indicadores biológicos permite identificar con puntualidad eventos de toxicidad. Sin embargo, el uso de ...
Historia Social de la Ciencia: "Moluscos de la Isla del Coco" (1935) de Paul Biolley
Analysis of the paper: “Mollusks of Cocos Island” (1935) by Paul Biolley from the Social History of Science
(2020)
Introduction: The paper “Moluscos de la Isla del Coco” (Mollusks of Cocos Island)
published in the Revista del Colegio Superior de Señoritas (1935) is the translation to Spanish of one of the
last works of Paul Biolley ...
La dinámica oceanográfica frente al Humedal Nacional Térraba-Sierpe y su relación con la muerte del manglar
The oceanographic dynamic in front of Térraba-Sierpe National Wetland (HNTS) and its relation with the mangrove’s death
The Térraba-Sierpe Reserve has the largest mangrove in Costa Rica but has suffered from changes in sea level. I used published data to analyze the area and found that sea level rise, generated by coast subsidence or ...
Independent evolutionary lineage of the clingfish Gobiesox adustus (Gobiesocidae) from Isla del Coco, Costa Rica
Linaje evolutivo independiente del clingfish Gobiesox adustus (Gobiesocidae) de Isla del Coco, Costa Rica
(2020-03-24)
Introduction: Isla del Coco is an important protected area for marine fauna in the Eastern Tropical Pacific. In this area, the species that inhabit the intertidal zone have been subject to few studies. One of the species ...
Downstream effects of hydropower production on aquatic macroinvertebrate assemblages in two rivers in Costa Rica
(Universidad de Costa Rica, 2014)
Despite the fact that little is known about the consequences of hydropower production in tropical areas, many large dams (>15m high) are currently under construction or consideration in the tropics. We researched the effects ...
Factores edáficos y nemátodos entomopatógenos en un agroecosistema neotropical de banano
Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystem
(2020-02-03)
Introduction: In Costa Rica the banana is one of the most important crops in terms of production and exports; the application of pesticides is hence necessary to control the effect of pests on the plantation, such as the ...