Now showing items 13-30 of 30
-
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 ... -
New Record of the Small Hive Beetle, Aethina tumida, in Africanized Honey Bee Colonies in Costa Rica
(Bee World, 2019-02-27)The small hive beetle (SHB) Aethina tumida Murray (Insecta: Coleoptera: Nitidulidae) is a honey bee parasite native to sub-Saharan Africa (Hepburn & Radloff, 1998). It was first described by Murray in 1867. In 1996, SHBs ... -
Nosemosis in Africanized Honey Bee Colonies (Apis mellifera) in the Tropical Conditions of Costa Rica: Nosema apis or Nosema ceranae
(Revista Ciencias Veterinarias, UNA, 2021-06-27)The presence of nosemosis in Africanized honey bees in Costa Rica was studied. A total of 75 samples of adult bees from different country regions were selected for molecular diagnosis of nosemosis. Prior to PCR tests, ... -
Nosemosis in africanized honey bee colonies in tropical conditions of Costa Rica: Nosema apis or Nosema cerenae
(Revista de Ciencias Veterinarias, UNA, 2021-06-17)The presence of nosemosis in Africanized honey bees in Costa Rica was studied. A total of 75 samples of adult bees from different country regions were selected for molecular diagnosis of nosemosis. Prior to PCR tests, ... -
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 ... -
Polinización de tomate sembrado bajo condiciones controladas de invernadero utilizando la abeja sin aguijón Nannotrigona perilampoides en Guanancaste, Costa Rica
(Revista Notas Apícola, CINAT-UNA, 2019-11-25)El objetivo de este trabajo fue evaluar la eficiencia de polinización de la especie Nannotrigona perilampoides (Hymenoptera: Meliponini), en un cultivo de tomate (Lycopersicon esculentum), sembrado bajo condiciones de ... -
Presence of Nosema ceranae in Africanized honey bee colonies in Costa Rica
(Journal of Apicultural Research, 2015-03-25)Nosemosis is a severe disease caused by the microsporidian Nosema sp. affecting adult honey bees (Apis mellifera) (Bailey and Ball, 1991). Nosema spores infect the epithelial layer of the ventriculus and midgut of adult ... -
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 ... -
Principales plantas de importancia alimenticia para la abeja nativa sin aguijón Trigona fulviventris (Guérin- Méneville) en Pocosol, Guanacaste, Costa Rica
(Revista Forestal Mesoamericana Kurú, 2018-12-18)En este estudio, se determinaron las principales plantas de importancia nutricional para la abeja sin aguijón Trigona fulviventris (Guérin- Méneville), en un fragmento de bosque seco secundario en Pocosol, Área de Conservación ... -
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 ... -
Reproductive biology of Varroa destructor in Africanized honey bees (Apis mellifera)
(Experimental and applied Acaralogy Springer, 2009-10-23)Since its first contact with Apis mellifera, the population dynamics of the parasitic mite Varroa destructor varies from one region to another. In many regions of the world, apiculture has come to depend on the use of ... -
Revisión sobre la presencia del Pequeño Escarabajo de la Colmena, Aethina tumida (Coleoptera: Nitidulidae) infestando colonias de abejas nativas sin aguijón (Apidae: Meliponini)
(Ciencias Veterinarias, Universidad Nacional de Costa Rica, 2022-12-07)La crianza y manejo de las abejas nativas sin aguijón, se conoce como “meliponicultura”, actividad ancestral de importancia ambiental y socioeconómica. En Costa Rica, se reportan más de 50 especies de ... -
Senna cobanensis poisoning in zebu calves: First case report
(Ciencias Veterinarias, UNA, 2022-12-27)Plants of the genus Senna belong to the Fabaceae family and globally they are distributed in tropical and subtropical areas. Some species of this genus contain products of secondary metabolism, which have been associated ... -
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 ... -
Stingless Bees in applied pollination: practice and perspectives
(Apidologie, 2006-06-22)At present, numbers of both wild and managed bee colonies are declining rapidly, causing global concern for pollination services. Stingless bees play an important ecological role as pollinators of many wild plant species ... -
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 ... -
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 ...
