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Trends in Ecology & Evolution|March 27, 2012
Phylogenetic evidence for pollinator-driven diversification of angiospermsTimotheüs van der Niet, Steven D JohnsonMolecular Phylogenetics and Evolution|January 13, 2009
Patterns of plant speciation in the Cape floristic regionTimotheüs van der Niet, Steven D JohnsonAnnals of Botany|January 15, 2014
Pollinator-driven ecological speciation in plants: new evidence and future perspectivesTimotheüs Van der Niet, Rod Peakall, Steven D JohnsonCurrent Biology : CB|November 6, 2020
Food Reward Chemistry Explains a Novel Pollinator Shift and Vestigialization of Long Floral Spurs in an OrchidMiguel Castañeda-Zárate, Steven D Johnson, Timotheüs van der NietEvolution; International Journal of Organic Evolution|October 5, 2006
Macroevolutionary data suggest a role for reinforcement in pollination system shiftsTimotheüs van der Niet, Steven D Johnson, H Peter LinderAnnals of Botany|July 17, 2020
Diel scent and nectar rhythms of an African orchid in relation to bimodal activity patterns of hawkmoth pollinatorsMarco G Balducci, Timotheüs Van der Niet, Steven D JohnsonProceedings. Biological Sciences|July 29, 2011
Floral signposts: testing the significance of visual 'nectar guides' for pollinator behaviour and plant fitnessDennis M Hansen, Timotheüs Van der Niet, Steven D JohnsonAnnals of Botany|March 16, 2011
Carrion mimicry in a South African orchid: flowers attract a narrow subset of the fly assemblage on animal carcassesTimotheüs van der Niet, Dennis M Hansen, Steven D JohnsonAmerican Journal of Botany|June 12, 2026
Pollination by long-proboscid horseflies and its implications for reproductive isolation among coflowering Satyrium orchids in South AfricaSteven D Johnson, Matthew Moir, Ethan Newman, et al.American Journal of Botany|October 21, 2025
Floral specialization for beetle pollination and its implications for pollen dispersal in an African orchidSteven D Johnson, Nina Hobbhahn, Timotheüs van der Niet, et al.Pageof 16