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Researcher · University of the Witwatersrand · South Africa

S. A. Hanrahan

S. A. Hanrahan publishes mostly in Ecology, Evolution, Behavior and Systematics, Genetics and Nature and Landscape Conservation, on topics such as Plant and animal studies, Insect and Arachnid Ecology and Behavior and Ecology and Vegetation Dynamics Studies.

OpenAlex
World rank
#5,318,516
of 7,710,434 ranked researchers
Rank in South Africa
#22,883
of 29,826
Works
23
Citations
494
Citations per work
21.5
h-index
9
i10-index 9Top 56% in Ecology, Evolution, Behavior and Systematics
S. A. Hanrahan

What does S. A. Hanrahan research?

S. A. Hanrahan's work is mostly in Agricultural and Biological Sciences (30%), Environmental Science (17%), Biochemistry, Genetics and Molecular Biology (15%).

Life Sciences: 10 works · 45.0% of their workAgricultural and Biological Sciences: 7 works · 30.0% of their workEcology, Evolution, Behavior and Systematics: 5 works · 23.3% of their workPlant Science: 2 works · 6.7% of their workBiochemistry, Genetics and Molecular Biology: 3 works · 15.0% of their workGenetics: 3 works · 15.0% of their workEverything else: 7 works · 31.7% of their workPhysical Sciences: 5 works · 23.3% of their workEnvironmental Science: 4 works · 16.6% of their workEcology: 2 works · 8.3% of their workNature and Landscape Conservation: 2 works · 8.3% of their workEarth and Planetary Sciences: 2 works · 6.7% of their workPaleontology: 2 works · 6.7% of their workTHEIR WORKS. A. Hanrahan23works
Life Sciences45%Physical Sciences23%

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 Sciences730.0%
    2. Biochemistry, Genetics and Molecular Biology315.0%
  2. Everything else731.7%
    1. Environmental Science416.6%
    2. Earth and Planetary Sciences26.7%
  1. 1Ecology, Evolution, Behavior and Systematics23% of their works
  2. 2Genetics15% of their works
  3. 3Nature and Landscape Conservation8% of their works
  4. 4Ecology8% of their works
  5. 5Plant Science7% of their works
  6. 6Paleontology7% of their works

Research topics

Which keywords describe S. A. Hanrahan's research?

The keywords of their largest research topics: Biodiversity, Invasive Species, Global Change, Habitat Fragmentation, Biogeography, Conservation, Ecosystem Services and Genomics.

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 26 words, with their numbers
  1. Biodiversity133 topics
  2. Invasive Species133 topics
  3. Global Change112 topics
  4. Habitat Fragmentation112 topics
  5. Biogeography73 topics
  6. Conservation72 topics
  7. Ecosystem Services61 topic
  8. Genomics61 topic
  9. Phylogeny63 topics
  10. Pollinator Decline61 topic
  11. Social Insects61 topic
  12. Taxonomy63 topics
  13. Ecosystem51 topic
  14. Endemism52 topics
  15. Functional Diversity51 topic
  16. Evolution42 topics
  17. Cladistic Analysis31 topic
  18. Regionalization31 topic
  19. Acoustic Communication21 topic
  20. DNA Barcoding21 topic
  21. Lepidoptera21 topic
  22. Mediterranean21 topic
  23. Natural Selection21 topic
  24. Orthoptera21 topic
  25. Phenotypic Plasticity21 topic
  26. Vascular Flora21 topic

Where does S. A. Hanrahan work?

S. A. Hanrahan's main affiliation in the publication record is University of the Witwatersrand, South Africa.

How many publications and citations does S. A. Hanrahan have?

OpenAlex counts 23 works and 494 citations for S. A. Hanrahan, an h-index of 9, ranking #5,318,516 of 7,710,434 researchers worldwide on the quality 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 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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