Browsing Artículos Científicos by Title
Now showing items 4-15 of 15
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Comparación de la habilidad reproductiva y mortalidad del ácaro Varroa destructor en celdas con cría de obrera y zángano en abejas africanizadas de Costa Rica
(Universidad Nacional, Costa Rica, 2014-10-31)Se estudió la reproducción del ácaro Varroa destructor en celdas con cría de obrera y zángano. Además se evaluó la mortalidad de la progenie de V. destructor, especialmente la muerte o ausencia del macho. El estudio se ... -
Costa Rican propolis chemical compositions: nemorosone found to be present in an exclusive geographical zone
(MDPI, 2023-10-14)The chemistry of Costa Rican propolis from Apis mellifera remains underexplored despite its potential applications. This study identified its chemical composition, linking chemotypes to antioxidant potential. Methods: ... -
Distribución del Pequeño Escarabajo de la Colmena, Aethina tumida, en abejas africanizadas (Apis mellifera) en diferentes zonas apícolas de Costa Rica
(Universidad Nacional, Costa Rica, 2020-07-01)El primer reporte sobre la presencia del Pequeño Escarabajo de la Colmena (PEC), Aethina tumida, en Costa Rica, se realizó el 25 de agosto 2015, en La Cruz, Guanacaste; lo cual aumenta el riesgo de dispersión a otras zonas ... -
Efficacy of Piper (Piperaceae) extracts for control of common home and garden insect pests
(Entomological Society of America, 2004)Extracts from three species of the plant family Piperaceae, Piper nigrum [L.], Piper guineense [Schum & Thonn], and Piper tuberculatum [Jacq.], were tested for efficacy against insects from five orders. All three species ... -
Floral biology, pollination ecology and seed production of the ornamental plant Salvia splendens Sello
(Universidad Nacional, Costa Rica., 2002)In this paper, the floral biology and pollination ecology of Salvia splendens are described. All flower characteristics (red corolla, large tubular flowers with abundant but dilute nectar) indicate that S. splendens is ... -
Learnt information in species-specific ‘trail pheromone’ communication in stingless bees
(Elsevier, 2013)Specificity in biological signalling systems is often important to keep information private. Foragers of several species of stingless bees deposit chemical marking signals to guide nestmates to food sources. The markings ... -
Nest-specific composition of the trail pheromone of the stingless bee Trigona corvina within populations
(Springer, 2012)Social insects have evolved highly developed communication systems, enabling them to coordinate complex interactions in their colonies. Pheromones play a major role in the coordination of many tasks. In Trigona corvina, a ... -
Physicochemical differentiation of stingless bee honeys from Costa Rica
(Taylor and Francis Group, 2021-04-06)We characterized Tetragonisca angustula and Melipona beecheii honeys produced in Costa Rica according to their physical and chemical properties. Moreover, we found critical parameters that distinguish the honeys from each ... -
Prevalencia de Nosema spp. (Microsporidia: Nosematidae) en abejas africanizadas en Atenas, Costa Rica: número de esporas y nivel de infección durante la época lluviosa
(Universidad Nacional, Costa Rica, 2021-04-12)Se estudió la prevalencia del microsporidio Nosema spp. en un apiario de 10 colmenas de abejas africanizadas en Atenas-Alajuela, Costa Rica, durante julio a noviembre 2017. Además, se comparó el número de esporas y el nivel ... -
Reproduction of Varroa destructor and offspring mortality in worker and drone brood cells of Africanized honey bees
(Springer, 2012-01-24)Varroa destructor is known to be the most serious parasite of Apis mellifera worldwide. In order to reproduce varroa females enter worker or drone brood shortly before the cell is sealed. From March to December 2008, the ... -
Situación del pequeño escarabajo, Aethina tumida, en colmenas de abejas africanizadas (Apis mellifera) en Costa Rica: Muestreo de apiarios 2014-2017
(2018-05-18)El primer reporte sobre la presencia del pequeño escarabajo de la colmena, Aethina tumida en Centroamérica se dio en El Salvador en el 2013, luego se confirmó en Nicaragua en el 2014, lo cual aumenta el riesgo de su ... -
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 ...