Karim Vahed


NameKarim Vahed
Job titleProfessor of Entomology
Research instituteCollege of Science and Engineering

Research outputs

Male genital titillators and the intensity of post-copulatory sexual selection across bushcrickets

Lehmann, Gerlind, Gilbert, James D. J., Vahed, Karim and Lehmann, Arne W. 2017. Male genital titillators and the intensity of post-copulatory sexual selection across bushcrickets. Behavioral Ecology. https://doi.org/10.1093/beheco/arx094

Paternity analysis of wild-caught females shows that sperm package size and placement influence fertilization success in the bushcricket Pholidoptera griseoaptera

Parker, Darren James, Zaborowska, Julia, Ritchie, Michael Gordon and Vahed, Karim 2017. Paternity analysis of wild-caught females shows that sperm package size and placement influence fertilization success in the bushcricket Pholidoptera griseoaptera. Molecular Ecology. https://doi.org/10.1111/mec.14089

Cryptic female choice in crickets and relatives (Orthoptera: Ensifera)

Vahed, Karim 2015. Cryptic female choice in crickets and relatives (Orthoptera: Ensifera). in: Springer.

Emerging issues in the evolution of animal nuptial gifts

Lewis, Sara M., Vahed, Karim, Koene, Joris M., Bussiere, Luc F., Gwynne, Darryl, Engqvist, Leif, Perry, Jennifer and Lehmann, Gerlind 2014. Emerging issues in the evolution of animal nuptial gifts. Biology Letters. https://doi.org/10.1098/rsbl.2014.0336

Functional equivalence of grasping cerci and nuptial food gifts in promoting ejaculate transfer in katydids.

Vahed, Karim, Gilbert, James D. J., Barrientos-Lozano, Ludivina and Weissman, David 2014. Functional equivalence of grasping cerci and nuptial food gifts in promoting ejaculate transfer in katydids. Evolution. https://doi.org/10.1111/evo.12421

The evolution of large testes: Sperm competition or male mating rate?

Vahed, Karim and Parker, Darren James 2011. The evolution of large testes: Sperm competition or male mating rate? Ethology. https://doi.org/10.1111/j.1439-0310.2011.01991.x

Increased copulation duration before ejaculate transfer is associated with larger spermatophores, and male genital titillators, across bushcricket taxa

Vahed, Karim, Lehmann, Gerlind, Gilbert, James D. J. and Lehmann, A. W. 2011. Increased copulation duration before ejaculate transfer is associated with larger spermatophores, and male genital titillators, across bushcricket taxa. Journal of Evolutionary Biology. https://doi.org/10.1111/j.1420-9101.2011.02325.x

Larger testes are associated with a higher level of polyandry, but a smaller ejaculate volume, across bushcricket species (Tettigoniidae)

Vahed, Karim, Parker, Darren James and Gilbert, James D. J. 2010. Larger testes are associated with a higher level of polyandry, but a smaller ejaculate volume, across bushcricket species (Tettigoniidae). Biology Letters. https://doi.org/10.1098/rsbl.2010.0840

The intensity of pre- and post-copulatory mate guarding in relation to spermatophore transfer in the cricket Gryllus bimaculatus

Parker, Darren James and Vahed, Karim 2009. The intensity of pre- and post-copulatory mate guarding in relation to spermatophore transfer in the cricket Gryllus bimaculatus. Journal of Ethology. https://doi.org/10.1007/s10164-009-0176-6

Free amino acids as phagostimulants in cricket nuptial gifts: support for the 'Candymaker' hypothesis

Warwick, Stuart, Vahed, Karim, Raubenheimer, David and Simpson, Stephen, J. 2009. Free amino acids as phagostimulants in cricket nuptial gifts: support for the 'Candymaker' hypothesis. Biology Letters. https://doi.org/10.1098/rsbl.2008.0731

Comparison of forced mating behaviour in four taxa of Anonconotus, the Alpine bushcricket

Vahed, Karim and Carron, G. 2008. Comparison of forced mating behaviour in four taxa of Anonconotus, the Alpine bushcricket. Journal of Zoology. https://doi.org/10.1111/j.1469-7998.2008.00492.x

Comparative evidence for a cost to males of manipulating females in bushcrickets

Vahed, Karim 2007. Comparative evidence for a cost to males of manipulating females in bushcrickets. Behavioral Ecology. https://doi.org/10.1093/beheco/arm021

All that Glisters is not Gold: Sensory Bias, Sexual Conflict and Nuptial Feeding in Insects and Spiders

Vahed, Karim 2007. All that Glisters is not Gold: Sensory Bias, Sexual Conflict and Nuptial Feeding in Insects and Spiders. Ethology. https://doi.org/10.1111/j.1439-0310.2006.01312.x

Larger ejaculate volumes are associated with a lower degree of polyandry across bushcricket taxa

Vahed, Karim 2006. Larger ejaculate volumes are associated with a lower degree of polyandry across bushcricket taxa. Proceedings of the Royal Society B: Biological Sciences. https://doi.org/10.1098/rspb.2006.3593

Male gryllus bimaculatus guard females to delay them from mating with rival males and to obtain repeated copulations

Wynn, Helen and Vahed, Karim 2004. Male gryllus bimaculatus guard females to delay them from mating with rival males and to obtain repeated copulations. Journal of Insect Behavior. https://doi.org/10.1023/B:JOIR.0000025132.02196.da

Structure of spermatodoses in shield-back bushcrickets (Tettigoniidae, Tettigoniinae)

Vahed, Karim 2003. Structure of spermatodoses in shield-back bushcrickets (Tettigoniidae, Tettigoniinae). Journal of Morphology. https://doi.org/10.1002/jmor.10110

Increases in egg production in multiply mated female bushcrickets Leptophyes punctatissima are not due to substances in the nuptial gift

Vahed, Karim 2003. Increases in egg production in multiply mated female bushcrickets Leptophyes punctatissima are not due to substances in the nuptial gift. Ecological Entomology. https://doi.org/10.1046/j.1365-2311.2003.00478.x

Coercive copulation in the alpine bushcricket anonconotus alpinus yersin (Tettigoniidae: Tettigoniinae: Platycleidini)

Vahed, Karim 2002. Coercive copulation in the alpine bushcricket anonconotus alpinus yersin (Tettigoniidae: Tettigoniinae: Platycleidini). Ethology. https://doi.org/10.1046/j.1439-0310.2002.00838.x

The function of nuptial feeding in insects: a review of empirical studies

Vahed, Karim 1998. The function of nuptial feeding in insects: a review of empirical studies. Biological Reviews. https://doi.org/10.1111/j.1469-185X.1997.tb00025.x
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