Haslett John R
Department of Zoology, University of Oxford, Oxford, UK.
Oecologia. 1989 Nov;81(3):361-363. doi: 10.1007/BF00377084.
Examination of the gut contents of adult Rhingia campestris reveals that there are considerable differences in the relative amounts of pollen and nectar ingested by individual insects. Pollen, a rich protein source, is required most by females, particularly during those stages of ovarial development when yolk deposition occurs. Nectar, which is mainly carbohydrate, is required in large amounts by males, and is also required by females before and after oogenesis. These results are discussed in relation to the likely nutritional needs of the flies, and it is suggested that similar feeding patterns may be found in a variety of other flower visiting insects. Finally, reference is made to the problems of making ecological assumptions about feeding behaviour on the basis of the morphological attributes of the mouthparts.
对成年田野食蚜蝇肠道内容物的检查表明，不同个体昆虫摄入的花粉和花蜜相对量存在显著差异。花粉是一种丰富的蛋白质来源，雌性昆虫对其需求最大，尤其是在卵巢发育过程中发生卵黄沉积的阶段。花蜜主要是碳水化合物，雄性昆虫大量需要，雌性昆虫在卵子发生前后也需要。结合这些苍蝇可能的营养需求对这些结果进行了讨论，并表明在其他各种访花昆虫中可能会发现类似的取食模式。最后，提到了根据口器的形态特征对取食行为做出生态假设时存在的问题。
