puits (1) formation (1) temps (durée) (1) recherche (1) projet (1) pollen (1) expérience de terrain (1) champ (1) évolution (1) évaluation (1) comparaison (1) méthode (1) adulte (1) Development (1) Comparison (1) Colonies (1) Methods (1) Surveys (1) Description and travel (1) Training (1) Time (1) Surveys (1) Surfaces--Areas and volumes (1) Science (1) Research (1) Pollen (1) Percentage (1) Nectar (1) Learning (1) Honeybee (1)