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Efecto de las descargas del emisario submarino de aguas residuales de la ciudad de Limón sobre la calidad del agua, abundancia y diversidad del fitoplancton en los alrededores de isla Uvita, Costa Rica
(Universidad Nacional, 2020-12-09)
Con el objetivo de evaluar la posible afectación del emisario submarino en la ciudad de Limón,
sobre el medio marino circundante, se establecieron 6 estaciones de muestreo, 4 de ellas cercanas
a la zona de desfogue y 2 ...
Response of macroinvertebrate communities to thermal regime in small Mediterranean streams (southern South America): Implications of global warming
(Elsevier GmbH, 2020-03)
The seasonal nature of the stream thermal regime has been recognized as an important factor for the structure of
benthic macroinvertebrate communities. In this study, we show the importance of temperature and the ...
Trophic guild and forest type explain phyllostomid bat abundance variation from human habitat disturbance
(Cold Spring Harbor Laboratory (Estados Unidos), 2020-02-16)
The loss of tropical forest cover caused by land-use change is causing a reduction in functional groups, such as trophic guilds. Phyllostomid bats (family Phyllostomidae) are essential in the Neotropics since they occupy ...
Caracterización fenotípica y molecular, e influencia de medios de cultivo, en el crecimiento y emisión de luz de bacterias del litoral de La Habana, Cuba
(Universidad de Costa Rica, 2020-09-18)
Phenotypic and molecular characterization, and influence of culture media, on the growth and light emission of bacteria from the coast of Havana, Cuba. Introduction: The light-emitting enzyme complex of luminescent bacteria ...
Primer reporte de bacterias y dinoflagelados marinos luminiscentes del Parque Nacional Isla del Coco, Costa Rica
(Universidad de Costa Rica, 2020-03-24)
First report of marine luminescent bacteria and dinoflagellates from Isla del Coco National Park, Costa Rica. Introduction: Bioluminescence is the ability of certain organisms to transform chemical energy into light energy ...
What do we Think About Water?Public Perception of the Current Situation of Water Resources in Costa Rica: an Indicator of Water Understanding and Management
(Universidad Nacional (Costa Rica), 2020-01)
The objective of this research was to determine the level of knowledge and perception of the Costa Rican population about water for human consumption, general concepts, the impact of human activities, the ...
Ensamblaje de insectos con actividad nocturna en dos arrozales de los Llanos Noroccidentales de Venezuela
(Museo de Biología de la Universidad del Zulia, 2020-06-30)
In order to contribute to our knowledge on assemblages of nocturnal insects associated with rice crops in Venezuela, two rice fields located in Acarigua and Turén, Portuguesa State, were studied. Sampling was carried out ...
Chlorophyll fluorescence and biomass partitioning within light and nitrogen deficiency: An example of the use of the R programming language for teaching
(Universidad Estatal a Distancia (UNED) (Costa Rica), 2020)
Introduction: Chlorophyll Fluorescence (Fv/Fm) detects damage in photosystem II (PSII) in plants exposed to stress (biotic and/or abiotic). Objective: In this context, Fv/Fm for the diagnosis of the effect of N deficiency ...
New species and records of Cloeodes Traver, 1938 (Ephemeroptera, Baetidae) from Costa Rica
(Pensoft (Bulgaria), 2020)
The nymph of Cloeodes danta sp. nov. is described from male and female nymphs collected from highland
streams in the Caribbean Slope of the Costa Rica Central Volcanic Mountain Range. Adults are unknown.
In addition, C. ...
Evaluación del estado ecológico de diez quebradas ubicadas en Tarrazú, zona de los Santos, San José, Costa Rica, mediante la ecología de náyades de Odonata (Insecta) y uso del suelo.
(Universidad Nacional, 2020)
El objetivo del trabajo fue evaluar el estado ecológico de 10 quebradas ubicadas en Tarrazú, Zona de los Santos mediante el estudio de la ecología de náyades de libélula, y uso del suelo durante abril, julio y octubre del ...