espanolEsta investigacion se realizo en 36 fincas del Proyecto Cacao Centroamerica y 3 bosques en 4 comunidades de Talamanca (Costa Rica), en sistemas agroforestales de cacao. Se busco determinar la abundancia de polinizadores y encontrar factores de vegetacion, paisaje y enemigos naturales que afectan dichas poblaciones. Se tomaron muestras de hojarasca y se llevaron a trampas de emergencia, se criaron y capturaron estados inmaduros de dipteros en una solucion de sacarosa al 20%. Se recolectaron en alcohol al 70% y se llevaron a laboratorio para determinar su abundancia. Finalmente se identificaron los dipteros de los generos Atrichopogon, Dasihelea y Forcipomyia (Ceratopogonidae). Se encontro que el porcentaje de polinizadores fue mayor en las comunidades (7.8%) que en bosques (5.6%) al compararlos con el total de dipteros. Se encontro relaciones positivas entre los polinizadores y porcentaje de humedad de hojarasca, peso seco del cacao, Musa sp, Erithryna sp y especie No. 3 sin identificar, abundancia de arboles Eugenia stipitata y Bactris gasipaes. Relaciones negativas se encontraron con la abundancia de Inga sp, Rollinia mucosa, Coffea arabiga, Iriartea deltoidea y Persea americana, pendiente del terreno y la altitud. El analisis de componentes principales permitio explicar 54.2% de la variabilidad presente a traves de seis factores. La abundancia de polinizadores fue clave en los factores 1 y 4 presentando alta incidencia en el 21.7% de la variabilidad. Se formaron grupos de fincas y se encontro que el grupo 3 formado por fincas de Amubri presento las mejores condiciones para polinizadores y dipteros. EnglishThis research was carried out in 36 farms of Central American Cocoa Project located in cocoa agroforestry systems in Talamanca (Costa Rica). The purpose was to determine the abundance of cocoa pollinators and to find the associated factors with vegetation, landscape and natural enemies affecting those populations. Samples of litter in the cacao crops were put in boxes traps; immature stages of flies were grown and carry into solution of sucrose 20%. Insects collected in alcohol 70% were taken to laboratory where the abundance was determined; were identified the flies of the genera Atrichopogon, Dasihelea and Forcipomyia (Ceratopogonidae). Higher averages of the percentage of pollinators in opposition to the diptera for communities (7.8%) than for forests (5.6%). It was found direct positive relationships and influences between pollinators and the moisture content of litter, dry weight of cocoa, Musa sp, Erithryna sp and the 3 unidentified specie, trees abundance of Eugenia stipitata and Bactris gasipaes. Negative relationships were found with abundance of Inga sp, Rollinia mucosa, Coffea arabiga, Iriartea deltoidea and Persea Americana, slope of the terrain and the altitude. The principal component analysis allowed to obtain six major components wich explain 54.2% of the variability. The abundance of pollinators was highly correlated with the components 1 and 4 showing a high incidence in 21.7% of the variability. It was formed groups of plots and was found that the third group (consists of Amubri's plots) presented the best conditions for pollinators, because it had higher averages for these variables.