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Shûji Okajima

Shûji Okajima publishes mostly in Insect Science, Ecology, Evolution, Behavior and Systematics and Plant Science, on topics such as Insect-Plant Interactions and Control, Agricultural pest management studies and Plant and animal studies.

World rank
#1,349,030
of 1,633,909 ranked researchers
Rank in Japan
#87,885
of 114,622
Works
33
Citations
17
Citations per work
0.5

What does Shûji Okajima research?

Insect Science: 38.5%Ecology, Evolution, Behavior and Systematics: 23.1%Plant Science: 17.9%Agronomy and Crop Science: 7.7%other fields: 12.8%38%top field
Insect Science38.5%Ecology, Evolution, Behavior and Systematics23.1%Plant Science17.9%Agronomy and Crop Science7.7%other fields12.8%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Insect Science38% of their works
  2. 2Ecology, Evolution, Behavior and Systematics23% of their works
  3. 3Plant Science18% of their works
  4. 4Agronomy and Crop Science8% of their works
  5. 5Paleontology5% of their works
  6. 6Cell Biology3% of their works

Research topics

Which keywords describe Shûji Okajima's research?

The keywords of their largest research topics: Biological Control, Herbivore-Induced Plant Volatiles, Jasmonate Signaling, Invasive Species, Climate Change, Cowpea, Genetics and Phylogeny.

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.

All 21 words, with their numbers
  1. Biological Control184 topics
  2. Herbivore-Induced Plant Volatiles121 topic
  3. Jasmonate Signaling121 topic
  4. Invasive Species104 topics
  5. Climate Change72 topics
  6. Cowpea61 topic
  7. Genetics61 topic
  8. Phylogeny63 topics
  9. Ecosystem Services41 topic
  10. Pollinator Decline41 topic
  11. Agricultural Productivity31 topic
  12. Halyomorpha halys31 topic
  13. Intercropping31 topic
  14. Morphology32 topics
  15. Stink Bug31 topic
  16. Biogeography21 topic
  17. Mealybug21 topic
  18. Regionalization21 topic
  19. Scale Insects21 topic
  20. Gall-Inducing Insects11 topic
  21. Parasitoid Wasps11 topic

Where does Shûji Okajima work?

Shûji Okajima's main affiliation in the publication record is Tokyo University of Agriculture, Japan.

How many publications and citations does Shûji Okajima have?

Science Explorer counts 33 works and 17 citations for Shûji Okajima, ranking #1,349,030 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised 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 are in the interactive view on the map. Is this your page? Request a correction or removal.