Browsing Facultad de Ciencias de la Tierra y el Mar by Title
Now showing items 969-988 of 1082
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Tabla de volumen comercial para teca clonal en diferentes índices de sitio en la Zona Norte de Costa Rica
(Universidad Nacional, Costa Rica, 2021-01-01)Es necesario cuantificar y predecir con confiabilidad el volumen de madera para facilitar la gestión de la producción forestal. El artículo tiene como objetivo elaborar tablas de volumen comercial a partir de ... -
Taller: Guía de Técnicas agroecológicas para el manejo de las principales plagas en las plantaciones de plátano en Talamanca, Limón
(2012)Resultados de práctica profesional supervisada, Escuela de Ciencias Agrarias, como parte de los materiales del taller. -
Talleres participativos sobre riesgos en el uso de plaguicidas: Una construcción colectiva e interetaria. Informe Técnico IRET No. 40
(Universidad Nacional, Costa Rica, 2020-10)La zona del Caribe costarricense, en especial el cantón de Matina, se caracteriza por la cantidad de plantaciones agrícolas, dentro los cuales destacan los monocultivos de banano (Llaguno et al., 2014). Este desarrollo se ... -
Temporal and spatial resource use by female three-toed sloths and their young in an agricultural landscape in Costa Rica
(Revista de Biologia Tropical, 2011-12)The information on ecological behavior of wild sloths is very scarce. In this study we determined the home ranges and resources used by three adult female three-toed sloths (Bradypus variegatus) and their four young in ... -
Temporal and spatial variations in organic and elemental carbon concentrations in PM10/PM2.5 in the metropolitan area of Costa Rica, Central America
(Science Direct, 2013-01)PM2.5 and PM10 samples were collected at 4 and 14 sampling sites, respectively, located in the Metropolitan area of Costa Rica (MACR), during 2010-2011. These sites were representative of commercial, industrial and residential ... -
Testing Explant Sources, Culture Media, and Light Conditions for the Improvement of Organogenesis in Pinus ponderosa (P. Lawson and C. Lawson)
(Universidad Nacional, Costa Rica, 2023-02-14)Pinus. ponderosa (P. Lawson and C. Lawson) is a commercial tree and one of the most important forest species in North America. Ponderosa pine suffers hardship when going through vegetative propagation and, in some cases, ... -
The 27 February 2022 Lop Nor earthquake: detectability, location, and discrimination
(Seismological Society of America (SSA), 2022)A seismic event with mb 4.8 (Mw 4.2) was detected close to the Chinese Lop Nor nuclear test site on 27 February 2022. Waveforms recorded at regional and far regional distances in central Asia indicate greater likeness with ... -
The antimicrobial activity and microbiological safety of stingless bee honeys from Costa Rica
(International Bee Research AssociationTaylor and Francis, 2014)Stingless bee honeys from Costa Rica possess etnopharmacological value mainly as a wound dressing. The microbiological study by APHA methods reported that 83 % of the honeys analysed had microbial counts that comply with ... -
The big free-tailed bat, Nyctinomops macrotis (Gray, 1839), in central America [El murciélago grande de cola libre, Nyctinomops macrotis (Gray, 1839), en Centro América]
(Mastozoologia Neotropical, 2016-12)The big free-tailed bat, Nyctinomops macrotis, is a large molossid with a discontinuous distribution in the southwestern United States and most of Mexico (northern range), and northern South America (southern range). In ... -
The effect of the insecticide diazinon on the osmoregulation and the avoidance response of the white leg shrimp (Penaeus vannamei) is salinity dependent
(Elsevier, 2020-12-15)Diazinon is one of the insecticides that represent a high risk for Costa Rican estuarine environments due to its widespread use in pineapple plantations. In estuaries, organisms are frequently submitted to stress caused ... -
The geometry of the Wadati-Benioff zone under southern Central America and its tectonic significance: results from a high-resolution local seismographic network
(Elsevier, 1994)We present here a detailed geometry of the Wadati—Benioff zone under Costa Rica, obtained from seismicity recorded by a dense local seismographic network jointly operated by the Costa Rica Volcanological and Seismological ... -
The geomorphic landscape of the Barva volcano, Costa Rica
(Bellweather Publishing, 2020-03-13)Volcanoes have a beneficial role in human development; however, this balance could turn to hazardous processes or even environmental disturbances. Costa Rica is a volcanic country. The people of Costa Rica live upon these ... -
The intraplate Porto dos Gaúchos seismic zone in the Amazon craton — Brazil
(Elsevier, 2009-01-15)The largest earthquake observed in the stable continental interior of the South American plate occurred in Serra do Tombador, Mato Grosso state — Brazil, on January 31, 1955 with a magnitude of 6.2 mb. Since then no other ... -
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 ...