Steven D. Johnson

Research.com Recognitions

• 2026 - Research.com Ecology and Evolution in South Africa Leader Award
• 2026 - Research.com Plant Science and Agronomy in South Africa Leader Award
• 2025 - Research.com Ecology and Evolution in South Africa Leader Award
• 2025 - Research.com Plant Science and Agronomy in South Africa Leader Award
• 2022 - Research.com Ecology and Evolution in South Africa Leader Award
• 2022 - Research.com Plant Science and Agronomy in South Africa Leader Award

Overview

Best Publications

• Generalization versus specialization in plant pollination systems

  Steven D. Johnson;Kim E. Steiner

  1145
  Citations

• Mechanisms and evolution of deceptive pollination in orchids

  Jana Jersáková;Steven D. Johnson;Pavel Kindlmann

  730
  Citations

• Pollinator-mediated evolution of floral signals

  Florian P. Schiestl;Steven D. Johnson

  650
  Citations

• A global-scale expert assessment of drivers and risks associated with pollinator decline.

  Lynn V. Dicks;Lynn V. Dicks;Tom D. Breeze;Hien T. Ngo;Deepa Senapathi

  476
  Citations

• Darwin's beautiful contrivances: evolutionary and functional evidence for floral adaptation

  Lawrence D. Harder;Steven D. Johnson

  473
  Citations

• POLLINATION SUCCESS IN A DECEPTIVE ORCHID IS ENHANCED BY CO-OCCURRING REWARDING MAGNET PLANTS

  Steven D. Johnson;Craig I. Peter;L. Anders Nilsson;Jon Ågren

  457
  Citations

• Long-tongued fly pollination and evolution of floral spur length in the Disa draconis complex (Orchidaceae)

  S. D. Johnson;K. E. Steiner

  433
  Citations

• Reconnecting plants and pollinators: challenges in the restoration of pollination mutualisms

  Myles H.M. Menz;Ryan D. Phillips;Ryan D. Phillips;Ryan D. Phillips;Rachael Winfree;Claire Kremen

  426
  Citations

• Phylogenetic evidence for pollinator-driven diversification of angiosperms.

  Timotheüs van der Niet;Timotheüs van der Niet;Steven D. Johnson

  425
  Citations

• Pollinator-driven ecological speciation in plants: new evidence and future perspectives

  Timotheus Van der Niet;Timotheus Van der Niet;Timotheus Van der Niet;Rodney Peakall;Steven D. Johnson

  363
  Citations

• Phylogeny and radiation of pollination systems in DISA (Orchidaceae).

  S. D. Johnson;H. P. Linder;K. E. Steiner

  354
  Citations

• The pollination niche and its role in the diversification and maintenance of the southern African flora.

  Steven D. Johnson

  322
  Citations

• THE GEOGRAPHICAL MOSAIC OF COEVOLUTION IN A PLANT–POLLINATOR MUTUALISM

  Bruce Anderson;Steven D. Johnson

  292
  Citations

• Pollinator-mediated selection on flower-tube length in a hawkmoth-pollinated Gladiolus (Iridaceae)

  Ronny Alexandersson;Steven D Johnson

  277
  Citations

• Consumptive emasculation: the ecological and evolutionary consequences of pollen theft.

  Anna L. Hargreaves;Lawrence D. Harder;Steven D. Johnson

  272
  Citations

• The pollination ecology of an assemblage of grassland asclepiads in South Africa.

  Jeff Ollerton;Steven D. Johnson;Louise Cranmer;Sam Kellie

  266
  Citations

• DARK, BITTER‐TASTING NECTAR FUNCTIONS AS A FILTER OF FLOWER VISITORS IN A BIRD‐POLLINATED PLANT

  Steven D. Johnson;Anna L. Hargreaves;Anna L. Hargreaves;Mark Brown

  265
  Citations

• Evolutionary associations between nectar properties and specificity in bird pollination systems

  Steven D Johnson;Susan W Nicolson

  237
  Citations

• Breeding systems of invasive alien plants in South Africa: does Baker's rule apply?

  Tendani D. Rambuda;Steven D. Johnson

  234
  Citations

• POLLEN CARRYOVER, GEITONOGAMY, AND THE EVOLUTION OF DECEPTIVE POLLINATION SYSTEMS IN ORCHIDS

  S. D. Johnson;L. A. Nilsson

  232
  Citations

• Function and Evolution of Aggregated Pollen in Angiosperms

  Lawrence D. Harder;Steven D. Johnson

  228
  Citations

• Reproductive biology of Australian acacias: Important mediator of invasiveness?

  Michelle R. Gibson;David M. Richardson;Elizabete Marchante;Hélia Marchante;Hélia Marchante

  221
  Citations

• The effects of nectar addition on pollen removal and geitonogamy in the non-rewarding orchid Anacamptis morio.

  Steven D. Johnson;Craig I. Peter;Jon Agren

  201
  Citations

• Adaptive plasticity of floral display size in animal-pollinated plants.

  Lawrence D Harder;Steven D Johnson

  191
  Citations

• Batesian mimicry in the non-rewarding orchid Disa pulchra, and its consequences for pollinator behaviour

  S. D. Johnson

  176
  Citations