Results 1 to 10 of about 22,107 (199)
Enteric Methane Emissions in Dairy Cows with Different Genetic Groups in the Humid Tropics of Costa Rica [PDF]
Animals, 2023 Enteric methane (CH4) is one of the main greenhouse gases emitted in livestock production systems with ruminants. Among the options to reduce such emissions, animal genetics is one of the factors that is taking relevance in recent years.
Cristóbal Villanueva +2 more
doaj +2 more sources
Description of the male of Xystromutilla bucki Suárez, 1960 (Hymenoptera, Mutillidae), including new information on the biology of the genus [PDF]
ZooKeys, 2021 The male of Xystromutilla bucki Suárez, 1960 is described and associated with the female based on couples reared from trap-nests occupied by Auplopus subaurarius Dreisbach, 1963 (Hymenoptera: Pompilidae). Information on the diapause of X.
Roberto A. Cambra +10 more
doaj +4 more sources
Ecosphere, 2021 Stand dynamic rates in Earth's vitally important tropical mountain rain forests are a central component of the response of these forests to global change, but their relationships to environmental gradients are poorly understood.
Alba Lorena Hernández Gordillo +4 more
doaj +1 more source
Earth, Planets and Space, 2021 This study presents the first hydrogeochemical model of the hydrothermal systems of Turrialba and Irazú volcanoes in central Costa Rica, manifested as thermal springs, summit crater lakes, and fumarolic degassing at both volcanoes.
D. Rouwet +9 more
doaj +1 more source
Tecnología y ciencias del agua, 2021 Este estudio determina el impacto del cambio climático y cambio de uso/cobertura de la tierra en la respuesta hidrológica y erosión hídrica de la subcuenca Quiscab, su área aproximada es 149.7 km2.
Giovanni González-Celada +3 more
doaj +1 more source
Interacciones multimodales en una clase de español de octavo año costarricense
Actualidades Investigativas en Educación, 2021 Esta investigación efectúa un análisis multimodal de los géneros empleados en la clase de español, por parte de una docente del Colegio Internacional Canadiense en Costa Rica, junto con los modos semióticos y sus metafunciones a lo interno de cada una ...
Carol Flores Solano
doaj +1 more source
Asociación entre entomofauna y arvenses en caña de azúcar
Agronomía Mesoamericana, 2023 Introducción. Las arvenses del cultivo de caña de azúcar pueden servir como reservorios de una gran cantidad de insectos benéficos útiles para el control biológico de plagas. Objetivo.
Ángela S. Sáenz +2 more
doaj +1 more source
Ecology and Evolution, 2019 Aim We sought to determine the relationship of forest composition and alpha diversity (the species diversity of a local assemblage) to altitude, soil, and spatial factors over a 440–2,950 m a.s.l gradient.
Dario Veintimilla +5 more
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Frontiers in Sustainable Food Systems, 2021 Cocoa cultivation is labeled as a driver of both deforestation and reforestation, yet the extent of the phenomena varies at farm and landscape level and as a response to national and local contexts.
Luis Orozco-Aguilar +7 more
doaj +1 more source
Fluid geochemistry and seismic activityin the period 1998-2002 at Turrialba Volcano (Costa Rica)
Annals of Geophysics, 2004 Turrialba Volcano, located in Central-Southern Costa Rica, has been characterized, since the last period of eruptive activity in 1884-1886, by a weak and discontinuous fumarolic activity in the western area of its summit.
E. Duarte +4 more
doaj +1 more source