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- Publications
- Influence
Light intensity limits foraging activity in nocturnal and crepuscular bees
- A. Kelber, E. Warrant, +4 authors R. Raguso
- Biology
- 2006
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
Visual ecology of Indian carpenter bees II: adaptations of eyes and ocelli to nocturnal and diurnal lifestyles
- H. Somanathan, A. Kelber, R. Borges, R. Wallén, Eric J. Warrant
- Biology, Medicine
- Journal of Comparative Physiology A
- 11 April 2009
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 vision… Expand
Insect-Like Olfactory Adaptations in the Terrestrial Giant Robber Crab
- M. Stensmyr, S. Erland, E. Hallberg, R. Wallén, P. Greenaway, B. Hansson
- Biology, Medicine
- Current Biology
- 26 January 2005
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 marine… Expand
Sparse sensillar array on Trioza apicalis (Homoptera, Triozidae) antennae-an adaptation to high stimulus levels?
- Lina Kristoffersen, E. Hallberg, R. Wallén, O. Anderbrant
- Biology, Medicine
- Arthropod structure & development
- 1 June 2006
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 sensillar… Expand
Ocellar optics in nocturnal and diurnal bees and wasps.
- E. Warrant, A. Kelber, R. Wallén, W. Wcislo
- Biology, Medicine
- Arthropod structure & development
- 1 December 2006
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
Olfactory sensilla in crustaceans: Morphology, sexual dimorphism, and distribution patterns
- E. Hallberg, K. Johansson, R. Wallén
- Biology
- 1 July 1997
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 been… Expand
Resolution and sensitivity of the eyes of the Asian honeybees Apis florea, Apis cerana and Apis dorsata
- Hema Somanathan, E. Warrant, R. Borges, R. Wallén, A. Kelber
- Biology, Medicine
- Journal of Experimental Biology
- 1 August 2009
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
Loss of transcriptional attenuation in N-myc is associated with progression towards a more malignant phenotype.
- L. Xu, Y. Meng, R. Wallén, R. DePinho
- Biology, Medicine
- Oncogene
- 2 November 1995
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, we… Expand
Male-produced sex pheromone in Tribolium confusum : Behaviour and investigation of pheromone production locations
- P. C. Olsson, C. Ryne, R. Wallén, O. Anderbrant, C. Löfstedt
- Biology
- 2006
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 be… Expand
Flagellar sensilla of the eusocial gall-inducing thrips Kladothrips intermedius and its kleptoparasite, Koptothrips dyskritus (Thysanoptera: Phlaeothripinae).
- Monica De Facci, R. Wallén, E. Hallberg, O. Anderbrant
- Biology, Medicine
- Arthropod structure & development
- 1 November 2011
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 contact… Expand
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