Bumble bee queens undergo a nutrient storage period prior to entering diapause wherein they sequester glycogen and lipids that are metabolized during overwintering. In the laboratory under optimal food availability conditions, the majority of nutrients are sequestered during the first few days of adulthood. However, if food resources are scarce during this narrow window of time, wild queen bumble bees might be limited in their ability to obtain adequate food resources for overwintering. Here we used a laboratory experiment to examine whether queen bumble bees exhibit flexibility in the timing of pre-overwintering nutrient sequestration, by limiting their access to either nectar (artificial) or pollen, the two primary foods for bumble bees, for varying periods of time. In response to these treatments, we quantified queen survival, changes in weight, and glycogen and lipids levels. We found evidence that queens are able to recuperate almost entirely from food resource limitation, with respect to nutrient storage, especially when it is experienced for shorter durations (up to 6 days). This study sheds light on how bumble bee queens are impacted by food resource availability at a critical life stage.
Este proyecto de investigación reconoce la importancia de identificar, caracterizar los procesos de formación en el área de Tecnología e Informática y el nivel de desarrollo del pensamiento crítico y lógico matemático que suscita en los estudiantes de básica y media de las instituciones educativas ubicadas dentro de las regiones de influencia de los Centros de Atención Universitaria, -CAU- de la Vicerrectoría de Universidad Abierta y a Distancia de la Universidad Santo TomásLa metodología para el desarrollo del proyecto se enmarca en el enfoque cualitativo, tomando como base el estudio de naturaleza aplicada y de tipo descriptivo, en tanto tiene el propósito de caracterizar y describir sistemáticamente los hechos y características de una población.En el transcurso de la investigación se retoman documentos nacionales e internacionales: “Standards For Technological Literacy” publicados por el International Technology Education Association ITEA en el 2007, donde se determinan las recomendaciones centrales para la implementación de una Alfabetización Tecnológica; El MEN en su documento “ser competente en tecnología - una necesidad para el desarrollo”, también establece las pautas de formación y competencias que se deben desarrollar en el área de “tecnología e informática” en la educación básica y media; igualmente tenidas en cuenta en esta investigación.
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