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Light intensity limits foraging activity in nocturnal and crepuscular bees
A crepuscular or nocturnal lifestyle has evolved in bees several times independently, probably to explore rewarding pollen sources without competition and to minimize predation and nest parasites.Expand
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Visual ecology of Indian carpenter bees II: adaptations of eyes and ocelli to nocturnal and diurnal lifestyles
Most bees are diurnal, with behaviour that is largely visually mediated, but several groups have made evolutionary shifts to nocturnality, despite having apposition compound eyes unsuited to visionExpand
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Insect-Like Olfactory Adaptations in the Terrestrial Giant Robber Crab
The robber crab (Birgus latro), also known as the coconut crab, is the world's largest land-living arthropod, with a weight reaching 4 kg and a length of over half a meter. Apart from the marineExpand
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Sparse sensillar array on Trioza apicalis (Homoptera, Triozidae) antennae-an adaptation to high stimulus levels?
To investigate the morphological basis for olfactory reception in the carrot psyllid (Trioza apicalis) we used scanning and transmission electron microscopy. Our study reveals a very sparse sensillarExpand
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Ocellar 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,Expand
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Olfactory sensilla in crustaceans: Morphology, sexual dimorphism, and distribution patterns
Abstract The morphological variation of crustacean olfactory sensilla is considerable, and appears to comprise both aesthetascs and male-specific sensilla. Male-specific sensilla have hitherto beenExpand
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Resolution and sensitivity of the eyes of the Asian honeybees Apis florea, Apis cerana and Apis dorsata
SUMMARY Bees of the genus Apis are important foragers of nectar and pollen resources. Although the European honeybee, Apis mellifera, has been well studied with respect to its sensory abilities,Expand
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Loss of transcriptional attenuation in N-myc is associated with progression towards a more malignant phenotype.
The modulation of RNA polymerase II processivity through the untranslated N-myc first exon represents an important mechanism governing N-myc mRNA levels during normal development. In this study, weExpand
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Male-produced sex pheromone in Tribolium confusum : Behaviour and investigation of pheromone production locations
It is generally accepted that mating in flour beetles of the genus Tribolium is mediated by a male-produced aggregation pheromone. The pheromone production site in T. castaneum is believed to beExpand
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Flagellar sensilla of the eusocial gall-inducing thrips Kladothrips intermedius and its kleptoparasite, Koptothrips dyskritus (Thysanoptera: Phlaeothripinae).
Insect antennal flagella host a multitude of sensory organs fulfilling different functions. Chemoreception, for example, is essential for insects in many contexts. Both olfaction and contactExpand
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