منابع مشابه
Nocturnal bees
Are there really nocturnal bees? Surprisingly, yes. Most people, if asked about bees, think of those industrious dayactive species, like the common honeybee, that harvest sunny meadows of flowers for pollen and nectar. And such images are not misguided — most bees are indeed day active (diurnal). By sundown most bees are safely back in the nest, their day’s labours complete. But for some bees, ...
متن کاملNocturnal Vision: Bees in the Dark
Some eyes work better in the dark than others. The apposition type of compound eye that bees and other diurnal insects possess is usually of little use after nightfall. Nevertheless some tropical sweat bees have pushed the limits of this unfavourable design so far that they can navigate using landmarks that are too dim for humans to make out.
متن کاملNocturnal bees learn landmark colours in starlight
Honeybees, like humans and most other vertebrates, are colour-blind in dim light. Bees are primarily day-active and have apposition compound eyes, the typical eye design of diurnal insects. Most bees are trichromats with photoreceptors sensitive in the UV, blue and green [1]. While their diurnal colour vision was established almost 100 years ago, honeybees are known to be colour-blind in moonli...
متن کاملOcellar optics in nocturnal and diurnal bees and wasps.
Nocturnal bees, wasps and ants have considerably larger ocelli than their diurnal relatives, suggesting an active role in vision at night. In a first step to understanding what this role might be, the morphology and physiological optics of ocelli were investigated in three tropical rainforest species - the nocturnal sweat bee Megalopta genalis, the nocturnal paper wasp Apoica pallens and the di...
متن کاملTwo new species of nocturnal bees of the genus Megalopta (Hymenoptera: Halictidae) with keys to species.
Megalopta Smith, 1853, is a Neotropical genus of nocturnal or crepuscular bees. Two subgenera are recognized with most of its nearly 30 species placed in the nominate subgenus. Species of Megalopta s. str. are more commonly collected than species of Noctoraptor Engel et al. 1997, all presumably parasites of Megalopta s. str. Two new species of Megalopta are described here: M. (Megalopta) tetewa...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2007
ISSN: 0960-9822
DOI: 10.1016/j.cub.2007.09.009