
handle: 10261/200804
[ES] Existe una preocupación creciente sobre la pérdida de polinizadores, fenómeno que supone una amenaza para la conservación de la biodiversidad y la producción sostenible de alimentos a escala global. En general, hay un consenso sobre el carácter multifactorial de este problema, y los plaguicidas han sido señalados como uno de los factores implicados. La exposición de polinizadores a plaguicidas se da a través de diferentes rutas, y las consecuencias de esta exposición dependen de si los niveles de los plaguicidas que se encuentran en el medio superan el umbral de toxicidad considerado como peligroso para su salud. Numerosos estudios muestran los efectos dañinos de ciertos plaguicidas, no sólo a dosis letales, sino también a concentraciones menores (sub-letales) que son a menudo detectadas en los recursos florales de los que se alimentan los polinizadores. El conocimiento de los niveles de exposición y las mezclas de plaguicidas a las que se enfrentan los polinizadores, y de las consecuencias de esta exposición, son esenciales para dirigir futuras investigaciones que cubran las incertidumbres actuales, y orienten así unas medidas estratégicas de regulación de plaguicidas que garanticen la conservación de estos importantes organismos.
[EN] There is a growing concern that pollinators are in decline, potentially threatening biodiversity and sustainable food production on a global scale. In general, there is consensus on the multifactorial origin of this problem, and pesticides are regarded as one of the factors involved. Pollinators can be exposed to pesticides through different routes, and the consequences of such exposure depend on whether the levels of field exposure overlap the toxic thresholds considered as detrimental to their health. Several studies have shown the harmful effects of some pesticides not just at their lethal concentrations, but also at lower concentrations (sub-lethal) which are often detected in the floral resources consumed by pollinators. In order to direct future research that may fill our current knowledge gaps, it is essential to identify the levels of pesticides and mixtures to which bees are exposed to, and the consequences of such exposure, so as to guide pesticide regulation strategies that may guarantee the conservation of these crucial organisms.
Peer reviewed
plaguicidas, environmental contamination, Contaminación ambiental, Environmental contamination, rutas de exposición, polinizadores, toxicity, toxicidad, pollinators, pesticides, Pesticides, routes of exposure
plaguicidas, environmental contamination, Contaminación ambiental, Environmental contamination, rutas de exposición, polinizadores, toxicity, toxicidad, pollinators, pesticides, Pesticides, routes of exposure
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