Hisao Hirai
Hisao Hirai publishes mostly in Ecology, Evolution, Behavior and Systematics, Civil and Structural Engineering and Plant Science, on topics such as Plant and animal studies, Fossil Insects in Amber and Geotechnical Engineering and Soil Stabilization.
- World rank
- #1,430,700 of 1,633,909 ranked researchers
- Rank in Japan
- #95,816 of 114,622
- Works
- 18
- Citations
- 26
- Citations per work
- 1.4
What does Hisao Hirai research?
Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.
- 1Ecology, Evolution, Behavior and Systematics24% of their works
- 2Civil and Structural Engineering24% of their works
- 3Plant Science8% of their works
- 4Materials Chemistry4% of their works
- 5Organic Chemistry4% of their works
- 6Neurology4% of their works
Research topics
Which keywords describe Hisao Hirai's research?
The keywords of their largest research topics: Climate Change, Invasive Species, Amber Fossils, DNA Barcoding, Ecosystem Services, Geosynthetics, Insect Evolution and Liquefaction Resistance.
- Strigolactones
- Parasitoid Wasps
- Fruit Trees
- Dormancy
- Soil Reinforcement
- Phylogeny
- Liquefaction Resistance
- Geosynthetics
- DNA Barcoding
- Invasive Species
- Climate Change
- Amber Fossils
- Ecosystem Services
- Insect Evolution
- Particle Shape Effects
- Pollinator Decline
- Coleoptera
- Evolution
- Gall-Inducing Insects
- Plant Hormones
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 20 words, with their numbers
- Climate Change32 topics
- Invasive Species32 topics
- Amber Fossils21 topic
- DNA Barcoding22 topics
- Ecosystem Services21 topic
- Geosynthetics21 topic
- Insect Evolution21 topic
- Liquefaction Resistance21 topic
- Particle Shape Effects21 topic
- Phylogeny22 topics
- Pollinator Decline21 topic
- Soil Reinforcement21 topic
- Coleoptera11 topic
- Dormancy11 topic
- Evolution11 topic
- Fruit Trees11 topic
- Gall-Inducing Insects11 topic
- Parasitoid Wasps11 topic
- Plant Hormones11 topic
- Strigolactones11 topic
Where does Hisao Hirai work?
Hisao Hirai's main affiliation in the publication record is Yamashina Institute for Ornithology, Japan.
How many publications and citations does Hisao Hirai have?
Science Explorer counts 18 works and 26 citations for Hisao Hirai, ranking #1,430,700 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.