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Researcher · University of Pennsylvania · United States

Daniel H. Janzen

Daniel H. Janzen publishes mostly in Ecology, Evolution, Behavior and Systematics, Insect Science and Genetics, on topics such as Plant and animal studies, Lepidoptera: Biology and Taxonomy and Hymenoptera taxonomy and phylogeny.

ORCID 0000-0002-7335-5107 OpenAlex
World rank
#57,210
of 7,710,434 ranked researchers
Rank in United States
#22,088
of 1,627,098
Works
685
Citations
55k
Citations per work
80.5
h-index
109
i10-index 308Top 0.1% in Ecology, Evolution, Behavior and Systematics
Daniel H. Janzen

What does Daniel H. Janzen research?

Daniel H. Janzen's work is mostly in Agricultural and Biological Sciences (46%), Environmental Science (16%), Biochemistry, Genetics and Molecular Biology (13%).

Life Sciences: 405 works · 59.1% of their workAgricultural and Biological Sciences: 316 works · 46.1% of their workEcology, Evolution, Behavior and Systematics: 167 works · 24.4% of their workInsect Science: 91 works · 13.3% of their workPlant Science: 58 works · 8.4% of their workBiochemistry, Genetics and Molecular Biology: 89 works · 13.0% of their workGenetics: 89 works · 13.0% of their workEverything else: 168 works · 24.5% of their workPhysical Sciences: 112 works · 16.4% of their workEnvironmental Science: 112 works · 16.4% of their workEcology: 83 works · 12.1% of their workNature and Landscape Conservation: 29 works · 4.3% of their workTHEIR WORKDaniel H. Janzen685works
Life Sciences59%Physical Sciences16%

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 Sciences31646.1%
    2. Biochemistry, Genetics and Molecular Biology8913.0%
  2. Everything else16824.5%
    1. Environmental Science11216.4%
  1. 1Ecology, Evolution, Behavior and Systematics24% of their works
  2. 2Insect Science13% of their works
  3. 3Genetics13% of their works
  4. 4Ecology12% of their works
  5. 5Plant Science8% of their works
  6. 6Nature and Landscape Conservation4% of their works

Research topics

Which keywords describe Daniel H. Janzen's research?

The keywords of their largest research topics: Invasive Species, Biodiversity, Climate Change, DNA Barcoding, Phylogeny, Biological Control, Global Change and Habitat Fragmentation.

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 26 words, with their numbers
  1. Invasive Species4515 topics
  2. Biodiversity3503 topics
  3. Climate Change2532 topics
  4. DNA Barcoding2392 topics
  5. Phylogeny2392 topics
  6. Biological Control2173 topics
  7. Global Change2152 topics
  8. Habitat Fragmentation2152 topics
  9. Ecosystem Services1661 topic
  10. Pollinator Decline1661 topic
  11. Biological Invasions1362 topics
  12. Lepidoptera1351 topic
  13. Taxonomy1351 topic
  14. Gall-Inducing Insects1041 topic
  15. Parasitoid Wasps1041 topic
  16. Bark Beetles871 topic
  17. Forest Pests871 topic
  18. Microbiota852 topics
  19. Herbivore-Induced Plant Volatiles681 topic
  20. Jasmonate Signaling681 topic
  21. Conservation491 topic
  22. Ecosystem491 topic
  23. Drosophila Suzukii451 topic
  24. Fruit Fly451 topic
  25. Genomics401 topic
  26. Social Insects401 topic

Where does Daniel H. Janzen work?

Daniel H. Janzen's main affiliation in the publication record is University of Pennsylvania, United States.

How many publications and citations does Daniel H. Janzen have?

OpenAlex counts 685 works and 55,137 citations for Daniel H. Janzen, an h-index of 109, ranking #57,210 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.

Other researchers named Daniel H. Janzen

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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