Browsing Facultad de Ciencias de la Tierra y el Mar by Title
Now showing items 981-1000 of 1081
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The life cycle carbon balance of selective logging in tropical forests of Costa Rica
(Wiley Periodicals, 2020-06-01)The effect of logging on atmospheric carbon concentrations remains highly contested, especially in the tropics where it is associated to forest degradation. To contribute to this discussion, we estimated the carbon balance ... -
The March 25, 1990 (Mw=7.0, ML=6.8), earthquake at the entrance of the Nicoya Gulf, Costa Rica: Its prior activity, foreshocks, aftershocks, and triggered seismicity
(American Geophysical Union, 1995-10-10)On March 25, 1990 a large earthquake (Mw = 7.0, ML = 6.8) occurred at the entrance of the Nicoya Gulf, Costa Rica, at 1322:55.6 UTC, producing considerable damage in central Costa Rica and generating much interest about ... -
The Mw 6.4 Damas, Costa Rica, Earthquake of 20 November 2004: Aftershocks and Slip Distribution
(Seismological Society of America, 2006-08)The earthquake of 20 November 2004 was located north of Damas Island in the Pacific coast of Costa Rica, within the Costa Rica Deformed Belt. The earthquake was located at 24 km depth and reported with a magnitude (Mw) of ... -
The Nicoya segment of Middle American Trench: an Excellent Target for Drilling and Monitoring the Shallow Portion of the Seismogenic Zone
(2011-06-28)The Nicoya segment of Middle America Trench has generated large earthquakes in 1883, 1900 and 1950. Since the Nicoya peninsula sits right over the seismogenic zone, it has proved to be a unique site for near field monitoring ... -
The opening of vents like decompression valves of the hydrothermal system at Turrialba volcano, Costa Rica
(International Association of Volcanology and Chemistry of the Earth's Interior, 2013-07-24) -
The role of fragmentation and landscape changes in the ecological release of common nest predators in the neotropics
(PeerJ, 2014-07)Loss of large mammalian carnivores may allow smaller mesopredators to become abundant and threaten other community members. There is considerable debate about mesopredator release and the role that other potential factors ... -
Thermoplasmatales and sulfur‑oxidizing bacteria dominate the microbial community at the surface water of a CO2‑rich hydrothermal spring located in Tenorio Volcano National Park, Costa Rica
(Extremophiles, 2019-01-01)Here we report the chemical and microbial characterization of the surface water of a CO2-rich hydrothermal vent known in Costa Rica as Borbollones, located at Tenorio Volcano National Park. The Borbollones showed a temperature ... -
Thin-skinned mass-wasting responsible for widespread deformation at Arenal volcano
(Frontiers Media, 2014-12-03)The shape and stability of a volcano’s edifice depends on the relationship between eruption rate and the loss or redistribution of material due to erosion, mass-wasting or deformation. This work provides measurements of ... -
Tomographic evidence for a subducted seamount beneath the Gulf of Nicoya, Costa Rica: The cause of the 1990 Mw = 7.0 Gulf of Nicoya earthquake
(American Geophysical Union, 2002-04-26)Tomographic images constrain the existence of a subducted seamount beneath the Gulf of Nicoya, Costa Rica. The subducted seamount is found at a depth of 30 km within the rupture area of the March 25, 1990, Mw = 7.0 Gulf ... -
Tools for strengthening productive capacities in beekeepers from the Central Pacific Region of Costa Rica
(Universidad Nacional, Costa Rica, 2023)The aim was to promote the empowerment and productive improvement of beekeepers operating in an area of high ecological degradation and marked poverty levels in the Central Pacific Region of Costa Rica, for whom beekeeping ... -
El trabajo infantil y los riesgos laborales: un abordaje interinstitucional para su atención en Costa Rica
(SALTRA / IRET-UNA, 2015-09-09) -
Trampa de fondo como una alternativa en el control integrado del ácaro Varroa destructor en colmenas de abejas africanizadas
(Revista de Ciencias Veterinarias, UNA, 2023-11-09)Se midió la efectividad de la trampa de fondo en el control del ácaro Varroa destructor en colmenas de abejas africanizadas, de junio a setiembre 2017, en Atenas, Alajuela. Se registró la caída natural de ácaros durante ... -
Transformaciones bioquímicas asociadas a la calidad de algunos grupos genéticos de cacao (Theobroma cacao L.) mediante un proceso de fermentación controlada
(Universidad Nacional, Costa Rica, 2020)La fermentación de cacao es un proceso de gran importancia para la formación de características aromáticas y sensoriales del cacao. El estudio de la diversidad de microorganismos involucrados en la fermentación ha sido ... -
Transport properties of glassy and molten lavas as a function of temperature and composition
(Elsevier, 2016-11-15)We provide measurements of thermal diffusivity (D), heat capacity (CP), and viscosity (η) for 12 remelted natural lavas and 4 synthetic glasses and melts, ranging in composition from leucogranite to low-silica basalt, and ... -
TRATO ANIMAL SIN MAL
(Universidad Nacional (Costa Rica). Escuela de Filosofía., 2018)Elabora un manual bioético basado en el principio de no maleficencia, casos de tenencia en cautiverio de animales silvestres y la legislación nacional, para contribuir a la erradicación del maltrato animal en Costa Rica. ... -
El Turismo Rural Comunitario: una alternativa productiva para la comunidad de Copal, Quebrada Honda de Nicoya, Guanacaste.
(Universidad Nacional, Costa Rica. Facultad de Ciencias de la Tierra y el Mar. Escuela de Ciencias Agrarias, 2009)En Costa Rica en la última década, el Turismo Rural Comunitario (TRC) ha surgido como un sector del turismo que se asocia a esfuerzos de organización comunitaria para la conservación y recuperación de recursos, desarrollando ... -
Turmoil at Turrialba Volcano (Costa Rica): Degassing and eruptive processes inferred from high-frequency gas monitoring
(Wiley, 2016-08-28)Eruptive activity at Turrialba Volcano (Costa Rica) has escalated significantly since 2014, causing airport and school closures in the capital city of San José. Whether or not new magma is involved in the current unrest ... -
Two new species and three morphospecies of Ficophagus Davies & Bartholomaeus, 2015 (Nematoda: Aphelenchoididae) from Ficus subgenus Pharmacosycea (Moraceae) in Central America
(Brill & The Hague Academy of International Law, 2017-03-15)Aphelenchoidid nematodes were collected from the sycones of Ficus subgenus Pharmacosycea from Central America. Two new species of Ficophagus were recovered, and are described herein as F. maxima sp. n. and F. yoponensis ... -
Ubicación de sitios turísticos y recreación del Cantón de Poás
(Escuela de Ciencias Geográficas, 2007)Ubicación de sitios turísticos y de recreación del cantón de Poás, parte de la propuesta de Plan Regulador.