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Evaluación cualitativa de indicadores de sostenibilidad socioambiental para su selección y aplicación en ciudades costarricenses
(2020-01)
From the sustainable development management model, cities must seek balance relationships between natural resources and economic and social development in such a way that the environmental conditions inside and outside ...
Evaluación de la estructura comunitaria de las esponjas marinas en parches arrecifales del Caribe sur, Costa Rica
(Instituto de Investigaciones Marinas y Costeras (INVEMAR), 2020-07-16)
Las esponjas marinas cumplen un gran número de funciones críticas para los arrecifes coralinos. A su vez, las variaciones en la estructura comunitaria de los poríferos pueden indicar cambios en las condiciones ambientales ...
Comparison of fatty acids profile of the gonads and eggs of Lutjanus guttatus(Perciformes: Lutjanidae) obtained from wild and captive broodstock
(Universidad Nacional (Costa Rica), 2020-01)
The proportions of fatty acids present in eggs and gonads of wild and captive Lutjanus guttatus(Steindachner, 1869) were evaluated to assist in obtaining nutritional information necessary to ...
Uso de argumentación y analogías en los procesos de preparación para las Olimpiadas Internacionales de Biología y sus aportes a la promoción de competencias de pensamiento científico en estudiantes costarricenses
(Universidad Nacional (Costa Rica), 2020-01)
La presente investigación tiene como propósito identificar las competencias de pensamiento científico, como la argumentación y el uso de analogías, fomentadas en el estudiantado costarricense participante en las Olimpiadas ...
Physical, chemical, and biological treatment of chemical waste from teaching laboratories at Universidad Nacional, Costa Rica
(Universidad Nacional, Costa Rica, 2020-07-31)
Herein, we report the physical, chemical, and biological treatment of wastewater generated in the teaching laboratories at Universidad Nacional, Costa Rica. Initial physicochemical treatment included neutralization and ...
Primer registro del género Interocoris (Heteroptera: Naucoridae) en Centroamérica y observaciones sobre Interocoris mexicanus
(Universidad de Costa Rica, 2020-10-22)
Introduction: The family Naucoridae, of worldwide distribution, is divided into five subfamilies, with four of them and six genera reported to date in Central America. The genus Interocoris (Laccocorinae) is monotypic and ...
Are tropical reptiles really declining? A six-year survey of snakes in a tropical coastal rainforest: role of prey and environment
(Universidad de Costa Rica, 2020-02-03)
Introduction: Even though snake declines seem to be a reality in many parts of the world, some reports are based on anecdotal evidence and there is a need of prolonged and intensive studies, especially in ...
Comportamiento reproductivo, forrajeo y uso de hábitat de Coccyzus ferrugineus (Cuculiformes: Cuculidae) en la Isla del Coco, Costa Ric
(Universidad de Costa Rica, 2020-03-24)
Introducción: Coccyzus ferrugineus is the least studied endemic bird of Isla del Coco, many aspects of its natural history and behavior remain unknown, being one the least known species in Costa Rica. Objective: To describe ...
Seasonal impact of grazing, viral mortality, resource availability and light on the group‑specifc growth rates of coastal Mediterranean bacterioplankton
(Nature Research, 2020-12)
Estimation of prokaryotic growth rates is critical to understand the ecological role and contribution
of diferent microbes to marine biogeochemical cycles. However, there is a general lack of knowledge
on what factors ...
Organic amendments exacerbate the effects of silver nanoparticles on microbial biomass and community composition of a semiarid soil
(Elsevier, 2020-11-20)
Increased utilization of silver nanoparticles (AgNPs) can result in an accumulation of these particles in the environment. The potential detrimental effects of AgNPs in soil may be associated with the low fertility of soils ...