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Researcher · University of KwaZulu-Natal · South Africa

Steven D. Johnson

Steven D. Johnson publishes mostly in Ecology, Evolution, Behavior and Systematics, Plant Science and Nature and Landscape Conservation, on topics such as Plant and animal studies, Plant Parasitism and Resistance and Ecology and Vegetation Dynamics Studies.

ORCID 0000-0002-5114-5862 OpenAlex
World rank
#163,071
of 7,710,434 ranked researchers
Rank in South Africa
#541
of 29,826
Works
556
Citations
25k
Citations per work
44.8
h-index
84
i10-index 327Top 0.2% in Ecology, Evolution, Behavior and Systematics
Steven D. Johnson

What does Steven D. Johnson research?

Steven D. Johnson's work is mostly in Agricultural and Biological Sciences (64%), Environmental Science (14%), Biochemistry, Genetics and Molecular Biology (10%).

Life Sciences: 408 works · 73.4% of their workAgricultural and Biological Sciences: 355 works · 63.8% of their workEcology, Evolution, Behavior and Systematics: 209 works · 37.6% of their workPlant Science: 125 works · 22.5% of their workInsect Science: 21 works · 3.7% of their workBiochemistry, Genetics and Molecular Biology: 53 works · 9.6% of their workMolecular Biology: 41 works · 7.4% of their workGenetics: 12 works · 2.2% of their workPhysical Sciences: 80 works · 14.3% of their workEnvironmental Science: 80 works · 14.3% of their workNature and Landscape Conservation: 80 works · 14.3% of their workEverything else: 68 works · 12.3% of their workTHEIR WORKSteven D. Johnson556works
Life Sciences73%Physical Sciences14%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
    1. Agricultural and Biological Sciences35563.8%
    2. Biochemistry, Genetics and Molecular Biology539.6%
    1. Environmental Science8014.3%
  3. Everything else6812.3%
  1. 1Ecology, Evolution, Behavior and Systematics38% of their works
  2. 2Plant Science22% of their works
  3. 3Nature and Landscape Conservation14% of their works
  4. 4Molecular Biology7% of their works
  5. 5Insect Science4% of their works
  6. 6Genetics2% of their works

Research topics

Which keywords describe Steven D. Johnson's research?

The keywords of their largest research topics: Biodiversity, Invasive Species, Ecosystem Services, Pollinator Decline, Plant Hormones, Strigolactones, Conservation and Ecosystem.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most. The words come from the keyword list OpenAlex gives each topic, not from the text of the papers, so a word can appear that none of the papers uses.

All 19 words, with their numbers
  1. Biodiversity6422 topics
  2. Invasive Species6422 topics
  3. Ecosystem Services4301 topic
  4. Pollinator Decline4301 topic
  5. Plant Hormones2571 topic
  6. Strigolactones2571 topic
  7. Conservation2121 topic
  8. Ecosystem2121 topic
  9. Biogeography1212 topics
  10. Angiosperm Phylogeny921 topic
  11. Flowering Plants921 topic
  12. Pollen Tube Growth621 topic
  13. Self-Incompatibility621 topic
  14. Gesneriaceae291 topic
  15. Honey Bees291 topic
  16. Neonicotinoids291 topic
  17. phylogenetic reconstruction291 topic
  18. Genomics201 topic
  19. Social Insects201 topic

Where does Steven D. Johnson work?

Steven D. Johnson's main affiliation in the publication record is University of KwaZulu-Natal, South Africa.

How many publications and citations does Steven D. Johnson have?

OpenAlex counts 556 works and 24,895 citations for Steven D. Johnson, an h-index of 84, ranking #163,071 of 7,710,434 researchers worldwide on the quality score.

Ranked on field-normalised citation excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

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