SteveDJohnsonMD

PubMed

• Effects of pollen reward removal on fecundity in a self-incompatible hermaphrodite plant.
  Duffy, K. J., Johnson, S. D.> ;Plant Biol (Stuttg). 2011 May
• Sugar preferences and digestive efficiency of the village weaver: a generalist avian pollinator of African plants.
  Odendaal, T. C., Brown, M., Downs, C. T., Johnson, S. D.> ;J Exp Biol. 2010 Jul 15
• A key role for floral scent in a wasp-pollination system in Eucomis (Hyacinthaceae).
  Shuttleworth, A., Johnson, S. D.> ;Ann Bot. 2009 Mar 01
• Rodent pollination in the African lily Massonia depressa (Hyacinthaceae).
  Johnson, S. D., Pauw, A., Midgley, J.> ;Am J Bot. 2001 Oct
• Floral traits mediate the vulnerability of aloes to pollen theft and inefficient pollination by bees.
  Hargreaves, A. L., Harder, L. D., Johnson, S. D.> ;Ann Bot. 2012 Mar
• Floral signposts: testing the significance of visual ''nectar guides'' for pollinator behaviour and plant fitness.
  Hansen, D. M., Van der Niet, T., Johnson, S. D.> ;Proc Biol Sci. 2012 Feb 22
• Hybridization and gene flow between a day- and night-flowering species of Zaluzianskya (Scrophulariaceae s.s., tribe Manuleeae).
  Archibald, J. K., Wolfe, A. D., Johnson, S. D.> ;Am J Bot. 2004 Sep
• Exploitation of a specialized mutualism by a deceptive orchid.
  Anderson, B., Johnson, S. D., Carbutt, C.> ;Am J Bot. 2005 Aug
• Testing for ecological and genetic Allee effects in the invasive shrub Senna didymobotrya (Fabaceae).
  van Kleunen, M., Johnson, S. D.> ;Am J Bot. 2005 Jul
• Specialization for pollination by beetles and wasps: the role of lollipop hairs and fragrance in Satyrium microrrhynchum (Orchidaceae).
  Johnson, S. D., Ellis, A., Dötterl, S.> ;Am J Bot. 2007 Jan
• Hawkmoth pollination of aerangoid orchids in Kenya, with special reference to nectar sugar concentration gradients in the floral spurs.
  Martins, D. J., Johnson, S. D.> ;Am J Bot. 2007 Apr
• The evolution of floral variation without pollinator shifts in Gorteria diffusa (Asteraceae).
  Ellis, A. G., Johnson, S. D.> ;Am J Bot. 2009 Apr
• Beetle pollination of the fruit-scented cones of the South African cycad Stangeria eriopus.
  Proches, S., Johnson, S. D.> ;Am J Bot. 2009 Sep
• Pollinators, "mustard oil" volatiles, and fruit production in flowers of the dioecious tree Drypetes natalensis (Putranjivaceae).
  Johnson, S. D., Griffiths, M. E., Peter, C. I., Lawes, M. J.> ;Am J Bot. 2009 Nov
• Transition from wind pollination to insect pollination in sedges: experimental evidence and functional traits.
  Wragg, P. D., Johnson, S. D.> ;New Phytol. 2011 Sep
• Carrion mimicry in a South African orchid: flowers attract a narrow subset of the fly assemblage on animal carcasses.
  van der Niet, T., Hansen, D. M., Johnson, S. D.> ;Ann Bot. 2011 May
• Mammal pollinators lured by the scent of a parasitic plant.
  Johnson, S. D., Burgoyne, P. M., Harder, L. D., Dötterl, S.> ;Proc Biol Sci. 2011 Aug 7
• Reconnecting plants and pollinators: challenges in the restoration of pollination mutualisms.
  Menz, M. H., Phillips, R. D., Winfree, R., Kremen, C., Aizen, M. A., Johnson, S. D., Dixon, K. W.> ;Trends Plant Sci. 2011 Jan
• Floral mimicry enhances pollen export: the evolution of pollination by sexual deceit outside of the orchidaceae.
  Ellis, A. G., Johnson, S. D.> ;Am Nat. 2010 Nov
• Pollinator behaviour and plant speciation: can assortative mating and disruptive selection maintain distinct floral morphs in sympatry?
  Rymer, P. D., Johnson, S. D., Savolainen, V.> ;New Phytol. 2010 Oct
• Pollination and late-acting self-incompatibility in Cyrtanthus breviflorus (Amaryllidaceae): implications for seed production.
  Vaughton, G., Ramsey, M., Johnson, S. D.> ;Ann Bot. 2010 Oct
• Native pollen thieves reduce the reproductive success of a hermaphroditic plant, Aloe maculata.
  Hargreaves, A. L., Harder, L. D., Johnson, S. D.> ;Ecology. 2010 Jun
• Three-dimensional geometric morphometrics for studying floral shape variation.
  van der Niet, T., Zollikofer, C. P., León, M. S., Johnson, S. D., Linder, H. P.> ;Trends Plant Sci. 2010 Aug
• Health care volunteerism: what PAs need to know before making a trip.
  Donohue, P. K., Johnson, S. D., Rathfon, E.> ;JAAPA. 2010 May
• The missing stink: sulphur compounds can mediate a shift between fly and wasp pollination systems.
  Shuttleworth, A., Johnson, S. D.> ;Proc Biol Sci. 2010 Sep 22
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